Hybrid Control System (diagnostic Codes & Circuit Tests) (phv) Toyota Prius PHV pre-III

DESCRIPTION

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

WIRING DIAGRAM

Refer to the wiring diagram for DTC P316A-844. Refer to WIRING DIAGRAM .

Refer to the wiring diagram for DTC P31FC-410. Refer to WIRING DIAGRAM .

INSPECTION PROCEDURE

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P31EC-416 or P31ED-417 only is output. A DTCs other than P31EC-416 and P31ED-417 are output. B Turn the power switch off. B --> See step 15 A: Go to next step
2. CHECK CHARGE RELAY ASSEMBLY (CHRB, CHRG). Refer to «PROCEDURE - Step 4»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> See step 16 OK: Go to next step
3. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB (MAIN)). Refer to «PROCEDURE - Step 18»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 17 OK: Go to next step
4. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRG (MAIN)). Refer to «PROCEDURE - Step 19»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 17 OK: Go to next step
5. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB (SUB1)). Refer to «PROCEDURE - Step 20»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 18 OK: Go to next step
6. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRG (SUB1)). Refer to «PROCEDURE - Step 21»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 18 OK: Go to next step
7. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB (SUB2)). Refer to «PROCEDURE - Step 22»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 19 OK: Go to next step
8. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRG (SUB2)). Refer to «PROCEDURE - Step 23»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 19 OK: Go to next step
9. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (COOLING FAN). Refer to «PROCEDURE - Step 11»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> See step 20 OK: Go to next step
10. CHECK CONNECTOR CONNECTION CONDITION (ELECTRIC VEHICLE CHARGER ASSEMBLY CONNECTOR). Refer to «PROCEDURE - Step 12»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> CONNECT SECURELY OK: Go to next step
11. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (ISOLATION CIRCUIT CONDITION). Refer to «PROCEDURE - Step 13»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> See step 20 OK: Go to next step
12. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (CHST). Refer to «PROCEDURE - Step 14»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> See step 20 OK: Go to next step
13. CHECK HARNESS AND CONNECTOR (ELECTRIC VEHICLE CHARGER - POWER MANAGEMENT CONTROL ECU). Refer to «PROCEDURE - Step 15»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
14. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (CHST SIGNAL). Refer to «PROCEDURE - Step 16»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> See step 20 OK --> See step 21
15. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
16. REPLACE CHARGE RELAY ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
17. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (MAIN). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
18. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
19. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
20. REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
21. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

Refer to the description for DTC P31FA-372. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 501

Scheme 502

Scheme 503

Scheme 504

Scheme 505

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY J/B (SUB2)) Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-1 (SR3B) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector: (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-1 (SR3B) - Body ground Power switch off 19.0 to 35.5ohms Connect the power management control ECU connector. NG --> See step 3 OK: Go to next step
2. CHECK FOR INTERMITTENT PROBLEMS Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems) . Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA A --> See step 7
3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - PACK WIRE CONNECTOR) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect the HV battery connector. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-1 (SR3B) and Ro1-13 (SR3B) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery Connector) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-1 (SR3B) - Ro1-13 (SR3B) Power switch off Below 1 ohms L116-1 (SR3B) and Ro1-13 (SR3B) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-10 (GND) - Body ground Power switch off Below 1 ohms Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (HV BATTERY CONNECTOR - HYBRID BATTERY J/B ASSEMBLY (SUB2)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o2 from the hybrid battery junction block assembly (sub2). Disconnect the HV battery connector. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-13 (SR3B) and o2-4 (SR3B) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to HV Battery Connector) *b Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub2)) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition Ro1-13 (SR3B) - o2-4 (SR3B) Power switch off Below 1 ohms Ro1-13 (SR3B) and o2-4 (SR3B) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub2) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the HV battery connector. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY J/B ASSEMBLY (SUB2) -BODY GROUND) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o2 from the hybrid battery junction block assembly (sub2). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition o2-2 (GND3) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub2)) HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub2) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

Refer to the description for DTC P31FA-372. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 506

Scheme 507

Scheme 508

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY J/B (SUB2)) Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-3 (SR3G) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector: (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-3 (SR3G) - Body ground Power switch off 19.0 to 35.5ohms Connect the power management control ECU connector. NG --> See step 3 OK: Go to next step
2. CHECK FOR INTERMITTENT PROBLEMS Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems) . Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA A --> See step 7
3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - PACK WIRE CONNECTOR) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect the HV battery connector. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-3 (SR3G) and Ro1-14 (SR3G) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery Connector) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-3 (SR3G) - Ro1-14 (SR3G) Power switch off Below 1 ohms L116-3 (SR3G) and Ro1-14 (SR3G) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-10 (GND) - Body ground Power switch off Below 1 ohms Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (HV BATTERY CONNECTOR - HYBRID BATTERY J/B ASSEMBLY (SUB2)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o2 from the hybrid battery junction block assembly (sub2). Disconnect the HV battery connector. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-14 (SR3G) and o2-1 (SR3G) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to HV Battery Connector) *b Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub2)) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition Ro1-14 (SR3G) - o2-1 (SR3G) Power switch off Below 1 ohms Ro1-14 (SR3G) and o2-1 (SR3G) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub2) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the HV battery connector. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY J/B ASSEMBLY (SUB2) - BODY GROUND) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o2 from the hybrid battery junction block assembly (sub2). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition o2-2 (GND3) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub2)) HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub2) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

The SMRs (System Main Relays) are the relays that connect or disconnect the high voltage power system in accordance with commands from the power management control ECU.

There are 3 SMRs and 1 precharge resistor. SMRB, SMRP, SMRG, and the precharge resistor are located in the HV battery junction block assembly in the HV battery pack.

To connect to the high voltage power system, the vehicle will first turn on SMRP and SMRB to charge the vehicle through the system main resistor. Then, SMRP will be turned off after SMRG is turned on. To shut off the high voltage power system, SMRB and SMRG are turned off.

Scheme 509

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 510

Scheme 511

Scheme 512

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY J/B (SUB2)) Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-2 (SR3P) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector: (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-2 (SR3P) - Body ground Power switch off 112 to 274 ohms Connect the power management control ECU connector. NG --> See step 3 OK: Go to next step
2. CHECK FOR INTERMITTENT PROBLEMS Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems) . Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA A --> See step 7
3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - PACK WIRE CONNECTOR) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect the HV battery connector. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-2 (SR3P) and Ro1-12 (SR3P) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery Connector) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-2 (SR3P) - Ro1-12 (SR3P) Power switch off Below 1 ohms L116-2 (SR3P) and Ro1-12 (SR3P) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-10 (GND) - Body ground Power switch off Below 1 ohms Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (HV BATTERY CONNECTOR - HYBRID BATTERY J/B ASSEMBLY (SUB2)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o2 from the hybrid battery junction block assembly (sub2). Disconnect the HV battery connector. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-12 (SR3P) and o2-3 (SR3P) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to HV Battery Connector) *b Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub2)) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition Ro1-12 (SR3P) - o2-3 (SR3P) Power switch off Below 1 ohms Ro1-12 (SR3P) and o2-3 (SR3P) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub2) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the HV battery connector. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2) - BODY GROUND) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o2 from the hybrid battery junction block assembly (sub2). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition o2-2 (GND3) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub2)) HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub2) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

MONITOR DESCRIPTION

The power management control ECU (HV CPU) monitors the PISW signal. The PISW signal indicates the connection status of the electric vehicle charger connector. If the power management control ECU (HV CPU) detects an abnormality in the sensor signal, the power management control ECU (HV CPU) will illuminate the MIL and set a DTC.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

Scheme 513

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY) and after a few seconds, turn the power switch off. [A]
6. Repeat [A] 3 times. [B]
7. Turn the power switch on (IG) and turn the Techstream on.
8. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [C]
9. Check that permanent DTCs are cleared.
10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

HINT

1. If a permanent DTC is output, the system is malfunctioning.
2. If no permanent DTC is output, the system is normal.

Scheme 514

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 515

Scheme 516

Scheme 517

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. Check if DTCs are output. Result Result Proceed to P31FC-410 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1D (all INF codes)*1 Hybrid Powertrain Control Module P316A-844 Internal Control Module On-Board charger Performance HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P31FC-410 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 6 A: Go to next step
2. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR). Refer to «PROCEDURE - Step 3»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0069-273-p0a38-257-phv) NG --> CONNECT SECURELY OK: Go to next step
3. CHECK CONNECTOR CONNECTION CONDITION (ELECTRIC VEHICLE CHARGER ASSEMBLY CONNECTOR). Refer to «PROCEDURE - Step 2»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> CONNECT SECURELY OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ELECTRIC VEHICLE CHARGER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector L120 from the electric vehicle charger assembly. Disconnect connector L118 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L118-18 (CHST) or L120-2 (CHST) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Electric Vehicle Charger Assembly) NOTE: Turning the power switch on (IG) with the power management control ECU and electric vehicle charger assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Switch Condition Specified Condition L118-18 (CHST) - L120-2 (CHST) Power switch off Below 1 ohms Standard Resistance (Check for short) Tester Connection Switch Condition Specified Condition L118-18 (CHST) or L120-2 (CHST) - Body ground and other terminals Power switch off 10 kohms or higher Connect the power management control ECU connector. Connect the electric vehicle charger assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK POWER MANAGEMENT CONTROL ECU (VOLTAGE) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector L120 from the electric vehicle charger assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L120-2 (CHST) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Electric Vehicle Charger Assembly) NOTE: Turning the power switch on (IG) with the electric vehicle charger assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Connect the electric vehicle charger assembly connector. NG --> See step 7 OK --> See step 8
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
8. REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

The power management control ECU (HV CPU) checks for faults in the CCID relay cutout request sent to the electric vehicle charger cable assembly (CCID). If the power management control ECU (HV CPU) detects a malfunction, it will illuminate the MIL and set a DTC.

Scheme 518

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY), and it drive for 3 minutes 25 mph (40 km/h), then turn the power switch off. [A]
6. Plug-in the charger cable, and charge the vehicle for 10 minutes. Unplug the charger cable. [B]
7. Turn the power switch on (IG) and after 1 minute, turn the power switch off. [C]
8. Turn the power switch on (IG) and turn the Techstream on. [D]
9. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes.
10. Check that the permanent DTCs are cleared.
11. If the permanent DTCs are not cleared, perform a universal trip, and then check for permanent DTCs again.

Refer to the wiring diagram for DTC P316A-844. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If DTC P320C-645 is stored, charging stops and the power switch turns off.

Scheme 519

Scheme 520

Scheme 521

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P320C-645 only is output. A DTCs other than P320C-645 are output. B Turn the power switch off. B --> See step 7 A: Go to next step
2. CHECK ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (CCID STUCK CLOSED) Connect the AC cable of the electric vehicle charger cable assembly to the AC outlet. Check the POWER light on the electric vehicle charger cable assembly. OK POWER light comes on and ERROR light does not come on. HINT: If the CCID relay is stuck on, the ERROR light comes on and the POWER light flashes once. If the CCID relay is stuck off, the ERROR light comes on and the POWER light flashes twice. Disconnect the AC cable of the electric vehicle charger cable assembly from the AC outlet. NG --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY OK: Go to next step
3. CHECK ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (LEAK DETECTION CIRCUIT) Connect the AC cable of the electric vehicle charger cable assembly to the AC outlet. Check that the POWER light on the electric vehicle charger cable assembly comes on. Press the TEST button on the electric vehicle charger cable assembly and inspect the electricity leakage detection function. OK POWER light flashes 3 times and ERROR light comes on. HINT: If the electricity leakage detection function is malfunctioning, the POWER light will flash 6 times and the ERROR light will come on. Press the RESET button. Disconnect the AC cable of the electric vehicle charger cable assembly from the AC outlet. NG --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY OK: Go to next step
4. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector L120 from the electric vehicle charger assembly. Disconnect connector T10 and T11 from the electric vehicle charger assembly. HINT: Make sure that no foreign objects have entered or contaminated the electric vehicle charger assembly connector. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below. NOTE: Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected. Standard Resistance Tester Connection Switch Condition Specified Condition T10-2 (ACIC) - L120-12 (CHG) Power switch off 7 Mohms or higher T10-1 (ACIH) - L120-12 (CHG) Power switch off 7 Mohms or higher TEXT IN ILLUSTRATION *a Component without motor cable connected (Electric Vehicle Charger Assembly (AC High Voltage Side)) *b Component without motor cable connected (Electric Vehicle Charger Assembly (Low Voltage Side)) Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below. NOTE: Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected. Standard Resistance Tester Connection Switch Condition Specified Condition T11-1 (DCHB) - L120-12(CHG) Power switch off 10 Mohms or higher T11-2 (DCHG) - L120-12 (CHG) Power switch off 10 Mohms or higher TEXT IN ILLUSTRATION *a Component without motor cable connected (Electric Vehicle Charger Assembly (DC High Voltage Side)) *b Component without motor cable connected (Electric Vehicle Charger Assembly (Low Voltage Side)) Connect the frame wire connector and electric vehicle charger cable. Connect the electric vehicle charger assembly connector. NG --> See step 8 OK: Go to next step
5. REPLACE ELECTRIC VEHICLE CHARGER CABLE Remove the electric vehicle charger cable. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv) . NEXT --> See step 6
6. REPLACE FRAME WIRE. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
8. REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P316A-844. Refer to WIRING DIAGRAM .

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If DTC P321A-641 is stored, charging stops and the power switch turns off.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P321A-641 only is output. A DTCs other than P321A-641 are output. B Turn the power switch off. B --> See step 7 A: Go to next step
2. CHECK ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (CCID STUCK CLOSED) See step 2 NG --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY OK: Go to next step
3. CHECK ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (LEAK DETECTION CIRCUIT) See step 3 NG --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY OK: Go to next step
4. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY See step 4 NG --> See step 8 OK: Go to next step
5. REPLACE ELECTRIC VEHICLE CHARGER CABLE Remove the electric vehicle charger cable. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv) . NEXT --> See step 6
6. REPLACE FRAME WIRE. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
8. REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

Scheme 522

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and the electric vehicle charger assembly.
2. If DTC P321B-642 is stored, charging stops and the power switch turns off.

Because DTC P321B-642 may be output under certain usage conditions, check the following items before beginning inspection.

1. Check that the charge cable is not connected to a portable generator or similar device during plug-in charging.
2. Check that an overloaded electrical outlet or inappropriate extension cord is not used.
3. Check that other circuits in the building are not being used by a device that requires a large amount of power.
4. Check that the plug of the charge cable is firmly connected to the outlet on the wall.
5. Check that the charge connector is firmly connected to the inlet on the vehicle.

Scheme 523

Scheme 524

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P321B-642 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P30FB-234 Charger Cable Input Voltage Sensor Range/Performance P30FC-235 Charger Cable Input Voltage Sensor Circuit Low P30FD-236 Charger Cable Input Voltage Sensor Circuit High HINT: P321B-642 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 7 A: Go to next step
2. CHECK ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (CCID STUCK CLOSED) See step 2 NG --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY OK: Go to next step
3. CHECK CONNECTOR CONNECTION CONDITION (CHARGE CABLE) Check the connections of the charge cable connector. OK Connector is foreign matter (small stones, sand, dust or ice, etc.). HINT: If there is foreign matter, remove it using compressed air. NG --> CONNECT SECURELY OK: Go to next step
4. CHECK CONNECTOR CONNECTION CONDITION (ELECTRIC VEHICLE CHARGER ASSEMBLY CONNECTOR). Refer to «PROCEDURE - Step 2»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#hybrid-control-system-diagnostic-codes-p3089-167-p31b5-123-phv) NG --> CONNECT SECURELY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (ELECTRIC VEHICLE CHARGER - INVERTER WITH CONVERTER ASSEMBLY) Disconnect connector L120 from the electric vehicle charger assembly. Disconnect connector A59 from the inverter with converter assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L120-7 (VAC1) or A59-11 (GIVT) - Body ground Power switch on (IG) Below 1 V L120-5 (GVAC) or A59-12 (GUU) - Body Ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Inverter with Converter Assembly) *b Front view of wire harness connector (to Electric Vehicle Charger Assembly) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for open) Tester Connection Switch Condition Specified Condition L120-7 (VAC1) - A59-11 (GIVT) Power switch off Below 1 ohms L120-5 (GVAC) - A59-12 (GUU) Power switch off Below 1 ohms Standard Resistance (Check for short) Tester Connection Switch Condition Specified Condition L120-7 (VAC1) or A59-11 (GIVT) - Body ground and other terminals Power switch off 10 kohms or higher L120-5 (GVAC) or A59-12 (GUU) - Body ground and other terminals Power switch off 10 kohms or higher Connect the inverter with converter assembly connector. Connect the electric vehicle charger assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
6. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (VAC VOLTAGE) Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L120-7 (VAC1) - L120-5 (GVAC) Power switch on (IG) 4.8 to 5.2 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Electric Vehicle Charger Assembly) HINT: Perform this inspection with the electric vehicle charger assembly connector connected. Turn the power switch off NG --> See step 8 OK --> See step 9
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
8. REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
9. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

Power management control ECU (HV CPU) monitors the electric vehicle charger voltage sensor signal (AC). If the power management control ECU (HV CPU) detects an abnormality in the sensor signal, the power management control ECU (HV CPU) will illuminate the MIL and set a DTC.

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY), and it drive for 3 minutes 25 mph (40 km/h), then turn the power switch off. [A]
6. Plug-in the charger cable, and charge the vehicle for 10 minutes. Unplug the charger cable. [B]
7. Turn the power switch on (IG) and after 1 minute, turn the power switch off. [C]
8. Turn the power switch on (IG) and turn the Techstream on. [D]
9. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes.
10. Check that the permanent DTCs are cleared.
11. If the permanent DTCs are not cleared, perform a universal trip, and then check for permanent DTCs again.

Refer to the wiring diagram for DTC P321B-642. Refer to WIRING DIAGRAM .

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If DTC P321C-643 is stored, charging stops and the power switch turns off.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P321C-643 only is output. A P30FB-234 is also output. B Turn the power switch off. B --> See step 4 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (ELECTRIC VEHICLE CHARGER - INVERTER WITH CONVERTER ASSEMBLY) See step 5 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK ELECTRIC VEHICLE CHARGER ASSEMBLY (VAC VOLTAGE) See step 6 NG --> See step 5 OK --> See step 6
4. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
5. REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
6. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P316A-844. Refer to DESCRIPTION .

The power management control ECU (HV CPU) monitors the plug-in charging system voltage. If the power management control ECU (HV CPU) detects a malfunction, it will illuminate the MIL and set a DTC.

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY), and it drive for 3 minutes 25 mph (40 km/h), then turn the power switch off. [A]
6. Plug-in the charger cable, and charge the vehicle for 10 minutes. Unplug the charger cable. [B]
7. Turn the power switch on (IG) and after 1 minute, turn the power switch off. [C]
8. Turn the power switch on (IG) and turn the Techstream on. [D]
9. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes.
10. Check that the permanent DTCs are cleared.
11. If the permanent DTCs are not cleared, perform a universal trip, and then check for permanent DTCs again.

Refer to the wiring diagram for DTC P0AE6-225. Refer to WIRING DIAGRAM .

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If DTC P321D-644 is stored, charging stops and the power switch turns off.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to DTC P321D-644 only is output. A DTC P316A-844 is also output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A78-121, 279, 503, 504 Drive Motor "A" Inverter Performance P0A94-442, 585, 587, 589, 590 DC/DC Converter Performance P0ADB-227 Hybrid Battery Positive Contactor Control Circuit Low P0ADF-229 Hybrid Battery Negative Contactor Control Circuit Low P300D-361 Battery No.2 Power Cable P3088-363 Battery No.3 Power Cable Malfunction P3089-167, 600, 601, 637, 638, 639, 652, 653 DC/DC Converter No.2 Performance P31F2-374 Hybrid Battery Positive Contactor "C" Control Circuit Low P31F6-376 Hybrid Battery Negative Contactor "C" Control Circuit Low P3322-368 Hybrid Battery Positive Contactor "B" Control Circuit Low P3326-370 Hybrid Battery Negative Contactor "B" Control Circuit Low HINT: P321D-644 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 10 A: Go to next step
2. READ VALUE USING TECHSTREAM Turn the power switch off. Connect the electric vehicle charger cable assembly to the charge inlet. Plug-in charge the HV battery. Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/ECU Date List/Battery No.1 Connection, Battery No.2 Connection, Battery No.3 Connection, VL-Voltage before Boosting, Cnv No.2 VL-Vol bef Bost, Power Resource VB. Read the ECU Data List. (*1) Tester Display Condition Battery No.1 Connection ON Battery No.2 Connection OFF Battery No.3 Connection OFF When the conditions in (*1) are satisfied, read the following Data List items. Result Result Proceed to The value of Power Resource VB plus 40 V is greater than the value of VL-Voltage before Boosting and also greater than the value of Cnv No. 2 VL-Vol Bost. A The preceding condition is not satisfied. B Turn the power switch off. B --> See step 11 A: Go to next step
3. CHECK FREEZE FRAME DATA (BATTERY CONDITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P321D-644. Result Result Proceed to Battery No. 1 Connection is ON. A Battery No. 2 Connection is ON. B Battery No. 3 Connection is ON. C Turn the power switch off. C --> See step 8 B --> See step 6 A: Go to next step
4. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB (MAIN)). Refer to «PROCEDURE - Step 18»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 12 OK: Go to next step
5. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRG (MAIN)). Refer to «PROCEDURE - Step 19»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 12 OK --> See step 12
6. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB (SUB1)). Refer to «PROCEDURE - Step 20»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 13 OK: Go to next step
7. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRG (SUB1)). Refer to «PROCEDURE - Step 21»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 13 OK --> See step 13
8. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRB (SUB2)). Refer to «PROCEDURE - Step 22»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 14 OK: Go to next step
9. INSPECT HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRG (SUB2)). Refer to «PROCEDURE - Step 23»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 14 OK --> See step 14
10. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
11. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
12. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (MAIN). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
13. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
14. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

The power management control ECU (HV CPU) sends a shutdown signal to the inverter with converter assembly (MG ECU) to shut down the power supply to MG2 and MG1.

Scheme 525

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.
2. When attempting to reproduce the problem, turning the power switch on (IG) and off repeatedly makes it easier to reproduce the problem. Do not repeatedly turn the power switch on (READY) and off as this will activate a system main relay overheat protection.

Scheme 526

Scheme 527

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A59 from the inverter with converter assembly. Disconnect connector A21 from the power management control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A21-24 (HSDN) or A59-31 (HSDN) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Inverter with Converter Assembly) *b Rear view of wire harness connector (to Power Management Control ECU) Connect the power management control ECU connector. Connect the inverter with converter assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. CHECK INVERTER WITH CONVERTER ASSEMBLY WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A59 from the inverter with converter assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A59-31 (HSDN) - Body ground Power switch off 2.65 to 3.55 kohms TEXT IN ILLUSTRATION *a Component without harness connected (Inverter with Converter Assembly) Connect the inverter with converter assembly connector. NG --> See step 4 OK --> See step 3
3. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
4. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P3232-749. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P3232-749. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

Scheme 528

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A59 from the inverter with converter assembly. Disconnect connector A21 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A21-24 (HSDN) - Body ground Power switch off Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Inverter with Converter Assembly) *b Rear view of wire harness connector (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A21-24 (HSDN) - A59-31 (HSDN) Power switch on (IG) Below 1 ohms Connect the inverter with converter assembly connector. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. CHECK INVERTER WITH CONVERTER ASSEMBLY WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A59 from the inverter with converter assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A59-31 (HSDN) - A59-10 (+B) Power switch off 10 kohms or higher A59-31 (HSDN) - A59-9 (+B2) Power switch off 10 kohms or higher A59-31 (HSDN) - Body ground Power switch off 2.65 to 3.55 kohms TEXT IN ILLUSTRATION *a Component without harness connected (Inverter with Converter Assembly) Connect the inverter with converter assembly connector. NG --> See step 4 OK --> See step 3
3. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
4. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions.

The power management control ECU (HV CPU) monitors the boost converter No. 2 current sensor high-resolution circuit. If the power management control ECU (HV CPU) detects a fault, it will illuminate the MIL and set a DTC.

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY) and after a few seconds, turn the power switch off. [A]
6. Repeat [A] 3 times. [B]
7. Turn the power switch on (IG) and turn the Techstream on.
8. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. [C]
9. Check that permanent DTCs are cleared.
10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

HINT

1. If a permanent DTC is output, the system is malfunctioning.
2. If no permanent DTC is output, the system is normal.

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

1. REPLACE INVERTER WITH CONVERTER ASSEMBLY Replace the inverter with converter assembly. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv) NEXT --> COMPLETED

The current of the boost converter No. 2 is controlled using the boost converter No. 2 current sensor (IL). The MG ECU monitors the boost converter No. 2 sensor (IL) for malfunctions and sends a signal to the power management control ECU (HV CPU) to store a DTC if a malfunction is detected.

HINT

The boost converter No. 2 current sensor (IL) is connected to the MG ECU inside the inverter with converter assembly. If P3242-836, P3243-834, P3244-835 is output, replace the inverter with converter assembly.

The MG ECU monitors the boost converter No. 2 current sensor signal. If the MG ECU detects abnormality in the sensor signal, the power management control ECU (HV CPU) will illuminate the MIL and set a DTC.

Scheme 529

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (IG) and check that there are no abnormalities (abnormal sounds, coolant leaks, DTC output, etc.).
6. Turn the power switch on (READY) and turn the Techstream on.
7. With park (P) selected, wait for several seconds. [A]
8. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. [B]
9. Check that permanent DTCs are cleared.
10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again. HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

1. REPLACE INVERTER WITH CONVERTER ASSEMBLY Replace the inverter with converter assembly. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv) . NEXT --> COMPLETED

The current of the boost converter No. 2 is controlled using the boost converter No. 2 current sensor (IL). The MG ECU monitors the boost converter No. 2 sensor (IL) for malfunctions and sends a signal to the power management control ECU (HV CPU) to store a DTC if a malfunction is detected.

HINT

The boost converter No. 2 current sensor (IL) is connected to the MG ECU inside the inverter with converter assembly. If P3242-838 is output, replace the inverter with converter assembly.

The power management control ECU (HV CPU) monitors the boost converter No. 2 current sensor. If the power management control ECU (HV CPU) detects a fault, it will illuminate the MIL and set a DTC.

Scheme 530

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Plug-in charge the HV battery for a few hours so that the vehicle can be driven in EV mode. [A]
6. Disconnect the electric vehicle charger cable assembly.
7. Turn the power switch on (READY).
8. Drive the vehicle in EV mode for 1 minute or more, and then turn the power switch off. [B]
9. Turn the power switch on (IG) and turn the Techstream on.
10. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. [C]
11. Check that permanent DTCs are cleared.
12. If the permanent DTCs are not cleared, perform a universal trip, and then check for permanent DTCs again.

HINT

1. If a permanent DTC is output, the system is malfunctioning.
2. If no permanent DTC is output, the system is normal.

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

1. REPLACE INVERTER WITH CONVERTER ASSEMBLY Replace the inverter with converter assembly. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv) . NEXT --> COMPLETED

If the inverter with converter assembly (MG ECU) is reset due to a problem with the power source in the inverter, the power management control ECU (HV CPU) will set this DTC.

Scheme 531

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

Scheme 532

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P324E-788 only is output. A U0110-159, 160, 656, 657 are also output. B Turn the power switch off. B --> See step 5 A: Go to next step
2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR). Refer to «PROCEDURE - Step 4»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0069-273-p0a38-257-phv) NG --> CONNECT SECURELY OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - IGCT RELAY) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A59 from the inverter with converter assembly. Remove the IGCT relay from the engine room junction block assembly. Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 IGCT Relay *a Front view of wire harness connector (to Inverter with Converter Assembly) - - Standard Resistance (Check for open) Tester Connection Switch Condition Specified Condition A59-10 (+B) - 5 (IGCT relay) Power switch off Below 1 ohms A59-9 (+B2) - 5 (IGCT relay) Power switch off Below 1 ohms A59-28 (GND1) - Body ground Power switch off Below 1 ohms A59-27 (GND2) - Body ground Power switch off Below 1 ohms Standard Resistance (Check for short) Tester Connection Switch Condition Specified Condition A59-10 (+B) or A59-9 (+B2) - Body ground and other terminals Power switch off 10 kohms or higher Install the IGCT relay. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
4. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

Refer to the description for DTC P31FA-372. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

Note. This vehicle is equipped with 3 HV battery packs in the HV battery. Even if a part related to one of the battery packs is malfunctioning, the system may use one of the other battery packs to activate the hybrid system (operate in the READY state). If DTC P331D-382 is stored, plug-in charge the vehicle using a charger cable after the repair in order to check whether the malfunction has been fully repaired. (Refer to the procedure below.) If plug-in charging completes normally, it can be assured that the failure has been fixed because a system check is performed for all 3 HV battery packs during charging.

1. Connect the plug-in charge connector to the plug-in charge inlet and start plug-in charging.
2. Plug-in charge the vehicle until the charge indicator on the upper left of the instrument panel goes off. HINT: Charging time varies depending on the SOC before charging. It takes 3.5 to 4 hours to fully charge the vehicle.
3. Make sure that the charge indicator goes off, and then disconnect the charge connector from the charge inlet.
4. Turn the power switch on (IG).
5. Check that the multi-information display shows "CHARGE COMPLETE". HINT: Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly. If P331D-382 is stored, the hybrid system cannot be turned on.

Scheme 533

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P331D-382 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No. 2 Power Cable P304F-446 DC/DC Converter No.2 Circuit shorted P3088-363 Battery No. 3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No.2 Performance P3198-663 DC/DC Converter No.2 Performance P3199-664 DC/DC Converter No.2 Performance P319F-566, 567, 568, 569 DC/DC Converter No.2 Performance P31F2-374 Hybrid Battery Positive Contactor "C" Control Circuit Low P31F3-373 Hybrid Battery Positive Contactor "C" Control Circuit High P31F6-376 Hybrid Battery Negative Contactor "C" Control Circuit Low P31F7-375 Hybrid Battery Negative Contactor "C" Control Circuit High P31FA-372 Hybrid Battery Precharge Contactor "C" Control Circuit Low P31FB-371 Hybrid Battery Precharge Contactor "C" Control Circuit High P324E-788 MG-ECU Power Relay Intermittent Circuit P331E-384 Hybrid Battery Negative Contactor "C" Circuit Stuck Closed P331F-383 Hybrid Battery Precharge Contactor "C" Circuit Stuck Closed P332C-381 Hybrid Battery Positive Contactor "B" Circuit Stuck Closed U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P331D-382 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 6 A: Go to next step
2. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P331D-382. Result Result Proceed to VH-Voltage after Boosting is less than 55 V. A VH-Voltage after Boosting is 55 V or more. B Turn the power switch off. A --> See step 5 B: Go to next step
3. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A - B Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly (sub2) without removing it from the vehicle, in order to keep the relay closed. If the result of reading the freeze frame data is B, the hybrid battery junction block assembly (sub2) must be replaced. Measuring resistance can determine that this is either a present or past malfunction. NG --> See step 4 OK --> See step 4
4. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

1. Refer to the description for DTC P31FA-372. Refer to «DESCRIPTION»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-circuit-tests-phv) .
2. This circuit uses the power management control ECU to monitor the system main relays and stops the system if a malfunction is detected in the relays, because it may be impossible to shut off the high-voltage system if any of the relays becomes stuck.

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If P331D-385 is stored, the hybrid system cannot be turned on.

Scheme 534

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P331D-385 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P0A1F-832 Battery Energy Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No.2 Power Cable P3088-363 Battery No.3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No.2 Performance P3198-663 DC/DC Converter No.2 Performance P3199-664 DC/DC Converter No.2 Performance P319F-566, 567, 568, 569 DC/DC Converter No.2 Performance P31F2-374 Hybrid Battery Positive Contactor "C" Control Circuit Low P31F3-373 Hybrid Battery Positive Contactor "C" Control Circuit High P31F6-376 Hybrid Battery Negative Contactor "C" Control Circuit Low P31F7-375 Hybrid Battery Negative Contactor "C" Control Circuit High P31FA-372 Hybrid Battery Precharge Contactor "C" Control Circuit Low P31FB-371 Hybrid Battery Precharge Contactor "C" Control Circuit High P324E-788 MG-ECU Power Relay Intermittent Circuit U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module U0111 (all INF codes)*1 Lost Communication with Battery Energy Control Module "A" HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P331D-385 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 7 A: Go to next step
2. CHECK DTC OUTPUT (HV BATTERY) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/HV Battery/Trouble Codes. Check if DTCs are output. Result Result Proceed to P331D-385 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P300F-123 Hybrid Battery Pack No. 3 Sensor Module P3367-123 Hybrid Battery No. 3 Voltage Sensor "A" Circuit Low P336C-123 Hybrid Battery No. 3 Voltage Sensor "B" Circuit Low P3372-123 Hybrid Battery No. 3 Voltage Sensor "C" Circuit Low P3377-123 Hybrid Battery No. 3 Voltage Sensor "D" Circuit Low P337C-123 Hybrid Battery No. 3 Voltage Sensor "E" Circuit Low P3382-123 Hybrid Battery No. 3 Voltage Sensor "F" Circuit Low P3387-123 Hybrid Battery No. 3 Voltage Sensor "G" Circuit Low P338C-123 Hybrid Battery No. 3 Voltage Sensor "H" Circuit Low P3392-123 Hybrid Battery No. 3 Voltage Sensor "I" Circuit Low P3097-123 Hybrid Battery No. 3 Voltage Sensor "J" Circuit Low P309C-123 Hybrid Battery No. 3 Voltage Sensor "K" Circuit Low P30A2-123 Hybrid Battery No. 3 Voltage Sensor "L" Circuit Low P30A7-123 Hybrid Battery No. 3 Voltage Sensor "M" Circuit Low P30AC-123 Hybrid Battery No. 3 Voltage Sensor "N" Circuit Low P3397-123 Hybrid Battery No. 3 Voltage Sensor "O" Circuit Low P339C-123 Hybrid Battery No. 3 Voltage Sensor "P" Circuit Low P303A-123 Open in Hybrid Battery No. 3 Cell Voltage Detection Circuit P303B-123 Hybrid Battery No. 3 Cell Voltage Detection Circuit Range/Performance P3090-123 Hybrid Battery No. 3 Voltage Sensor All Circuits Low U129B-123 Lost Communication with Hybrid Battery Pack No. 3 Sensor Module HINT: P331D-385 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 9 A: Go to next step
3. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P331D-385. Result Result Proceed to VH-Voltage after Boosting minus Cnv No. 2 VL-Vol bef Bost is 100 V or less. A The preceding condition is not satisfied. B B --> See step 10 A: Go to next step
4. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRB) Tester Connection Switch Condition Specified Condition A - B Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If both contacts of the SMR (sub1) are stuck closed, DTC P331D-385 may be stored instead of P332C-381. If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P331D-385 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRG) Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If both contacts of the SMR (sub1) are stuck closed, DTC P331D-385 may be stored instead of P332C-381. If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P331D-385 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. If the resistance is between 28.5 and 31.5 ohms, it can be determined that SMRP is stuck closed. NG --> See step 11 OK: Go to next step
5. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRB) Tester Connection Switch Condition Specified Condition A - B Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P331D-385 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRG) Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P331D-385 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. If the resistance is between 28.5 and 31.5 ohms, it can be determined that SMRP is stuck closed. NG --> See step 8 OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
8. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
9. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-system-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
10. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
11. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P31FA-372. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

Note. This vehicle is equipped with 3 HV battery packs in the HV battery. Even if a part related to one of the battery packs is malfunctioning, the system may use one of the other battery packs to activate the hybrid system (operate in the READY state). If DTC P331E-384 is stored, plug-in charge the vehicle using a charger cable after the repair in order to check whether the malfunction has been fully repaired. (Refer to the procedure below.) If plug-in charging completes normally, it can be assured that the failure has been fixed because a system check is performed for all 3 HV battery packs during charging. Connect the plug-in charge connector to the plug-in charge inlet and start plug-in charging. Plug-in charge the vehicle until the charge indicator on the upper left of the instrument panel goes off. HINT: Charging time varies depending on the SOC before charging. It takes 3.5 to 4 hours to fully charge the vehicle. Make sure that the charge indicator goes off, and then disconnect the charge connector from the charge inlet. Turn the power switch on (IG). Check that the multi-information display shows "CHARGE COMPLETE".

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If P331E-384 is stored, the hybrid system cannot be turned on.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P331E-384 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P0A1F-832 Battery Energy Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No. 2 Power Cable P304F-446 DC/DC Converter No. 2 Circuit shorted P3088-363 Battery No.3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No. 2 Performance P3198-663 DC/DC Converter No. 2 Performance P3199-664 DC/DC Converter No. 2 Performance P319F-566, 567, 568, 569 DC/DC Converter No. 2 Performance P31F2-374 Hybrid Battery Positive Contactor "C" Control Circuit Low P31F3-373 Hybrid Battery Positive Contactor "C" Control Circuit High P31F6-376 Hybrid Battery Negative Contactor "C" Control Circuit Low P31F7-375 Hybrid Battery Negative Contactor "C" Control Circuit High P31FA-372 Hybrid Battery Precharge Contactor "C" Control Circuit Low P31FB-371 Hybrid Battery Precharge Contactor "C" Control Circuit High P324E-788 MG-ECU Power Relay Intermittent Circuit P331D-385 Hybrid Battery Positive Contactor "C" Circuit Stuck Closed P332C-381 Hybrid Battery Positive Contactor "B" Circuit Stuck Closed U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module U0111 (all INF codes)*1 Lost Communication with Battery Energy Control Module "A" HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P331E-384 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 5 A: Go to next step
2. CHECK DTC OUTPUT (HV BATTERY) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/HV Battery/Trouble Codes. Check if DTCs are output. Result Result Proceed to P331E-384 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P300F-123 Hybrid Battery Pack No. 3 Sensor Module P3367-123 Hybrid Battery No. 3 Voltage Sensor "A" Circuit Low P336C-123 Hybrid Battery No. 3 Voltage Sensor "B" Circuit Low P3372-123 Hybrid Battery No. 3 Voltage Sensor "C" Circuit Low P3377-123 Hybrid Battery No. 3 Voltage Sensor "D" Circuit Low P337C-123 Hybrid Battery No. 3 Voltage Sensor "E" Circuit Low P3382-123 Hybrid Battery No. 3 Voltage Sensor "F" Circuit Low P3387-123 Hybrid Battery No. 3 Voltage Sensor "G" Circuit Low P338C-123 Hybrid Battery No. 3 Voltage Sensor "H" Circuit Low P3392-123 Hybrid Battery No. 3 Voltage Sensor "I" Circuit Low P3097-123 Hybrid Battery No. 3 Voltage Sensor "J" Circuit Low P309C-123 Hybrid Battery No. 3 Voltage Sensor "K" Circuit Low P30A2-123 Hybrid Battery No. 3 Voltage Sensor "L" Circuit Low P30A7-123 Hybrid Battery No. 3 Voltage Sensor "M" Circuit Low P30AC-123 Hybrid Battery No. 3 Voltage Sensor "N" Circuit Low P3397-123 Hybrid Battery No.3 Voltage Sensor "O" Circuit Low P339C-123 Hybrid Battery No. 3 Voltage Sensor "P" Circuit Low P303A-123 Open in Hybrid Battery No. 3 Cell Voltage Detection Circuit P303B-123 Hybrid Battery No. 3 Cell Voltage Detection Circuit Range/Performance P3090-123 Hybrid Battery No. 3 Voltage Sensor All Circuits Low U129B-123 Lost Communication with Hybrid Battery Pack No. 3 Sensor Module HINT: P331E-384 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 6 A: Go to next step
3. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly (sub2) without removing it from the vehicle, in order to keep the relay closed. If P331E-384 is output, the hybrid battery junction block assembly (sub2) must be replaced. Measuring resistance can determine if this is either a present or past malfunction. NG --> See step 4 OK --> See step 4
4. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-system-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

Refer to the description for DTC P31FA-372. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P31FA-372. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P331F-383 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No. 2 Power Cable P304F-446 DC/DC Converter No. 2 Circuit shorted P3088-363 Battery No. 3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No. 2 Performance P3198-663 DC/DC Converter No. 2 Performance P3199-664 DC/DC Converter No. 2 Performance P319F-566, 567, 568, 569 DC/DC Converter No. 2 Performance P31F2-374 Hybrid Battery Positive Contactor "C" Control Circuit Low P31F3-373 Hybrid Battery Positive Contactor "C" Control Circuit High P31F6-376 Hybrid Battery Negative Contactor "C" Control Circuit Low P31F7-375 Hybrid Battery Negative Contactor "C" Control Circuit High P31FA-372 Hybrid Battery Precharge Contactor "C" Control Circuit Low P31FB-371 Hybrid Battery Precharge Contactor "C" Control Circuit High P324E-788 MG-ECU Power Relay Intermittent Circuit P332C-381 Hybrid Battery Positive Contactor "B" Circuit Stuck Closed P331E-384 Hybrid Battery Negative Contactor "C" Circuit Stuck Closed U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P331F-383 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 6 A: Go to next step
2. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P331F-383. Result Result Proceed to VH-Voltage after Boosting is less than 55 V. A VH-Voltage after Boosting is 55 V or more. B Turn the power switch off. A --> See step 5 B: Go to next step
3. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard resistance Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly (sub2) without removing it from the vehicle, in order to keep the relay closed. If the result of reading the freeze frame data is B, the hybrid battery junction block assembly (sub2) must be replaced. Measuring resistance can determine that this is either a present or past malfunction. NG --> See step 4 OK --> See step 4
4. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

Refer to the description for DTC P332A-366. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 535

Scheme 536

Scheme 537

Scheme 538

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY J/B (SUB1)) Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-6 (SR2B) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector: (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-6 (SR2B) - Body ground Power switch off 19.0 to 35.5ohms Connect the power management control ECU connector. NG --> See step 3 OK: Go to next step
2. CHECK FOR INTERMITTENT PROBLEMS Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems) . Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA A --> See step 7
3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - PACK WIRE CONNECTOR) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect the HV battery connector. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-6 (SR2B) and Ro1-3 (SR2B) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery Connector) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-6 (SR2B) - Ro1-3 (SR2B) Power switch off Below 1 ohms L116-6 (SR2B) and Ro1-3 (SR2B) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-10 (GND) - Body ground Power switch off Below 1 ohms Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (HV BATTERY CONNECTOR - HYBRID BATTERY J/B ASSEMBLY (SUB1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o6 from the hybrid battery junction block assembly (sub1). Disconnect the HV battery connector. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-3 (SR2B) and o6-4 (SR2B) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to HV Battery Connector) *b Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub1)) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition Ro1-3 (SR2B) - o6-4 (SR2B) Power switch off Below 1 ohms Ro1-3 (SR2B) and o6-4 (SR2B) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the HV battery connector. Connect the hybrid battery junction block assembly (sub1) connector. NG --> REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) - BODY GROUND) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o6 from the hybrid battery junction block assembly (sub1). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition o6-2 (GND2) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub1)) HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the hybrid battery junction block assembly (sub1) connector. NG --> REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

Refer to the description for DTC P332A-366. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 539

Scheme 540

Scheme 541

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY J/B (SUB1)) Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-4 (SR2G) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector: (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-4 (SR2G) - Body ground Power switch off 19.0 to 35.5ohms Connect the power management control ECU connector. NG --> See step 3 OK: Go to next step
2. CHECK FOR INTERMITTENT PROBLEMS Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems) . Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA A --> See step 7
3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HV BATTERY CONNECTOR) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect the HV battery connector. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-4 (SR2G) and Ro1-4 (SR2G) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery Connector) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-4 (SR2G) - Ro1-4 (SR2G) Power switch off Below 1 ohms L116-4 (SR2G) and Ro1-4 (SR2G) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-10 (GND) - Body ground Power switch off Below 1 ohms Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (HV BATTERY CONNECTOR - HYBRID BATTERY J/B ASSEMBLY (SUB1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o6 from the hybrid battery junction block assembly (sub1). Disconnect the HV battery connector. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-4 (SR2G) and o6-1 (SR2G) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to HV battery connected connector) *b Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub1)) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition Ro1-4 (SR2G) - o6-1 (SR2G) Power switch off Below 1 ohms Ro1-4 (SR2G) and o6-1 (SR2G) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the HV battery connector. Connect the hybrid battery junction block assembly (sub2) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) - BODY GROUND) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o6 from the hybrid battery junction block assembly (sub1). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition o6-2 (GND2) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub1)) HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the hybrid battery junction block assembly (sub1) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

The SMRs (System Main Relays) are the relays that connect or disconnect the high voltage power system in accordance with commands from the power management control ECU.

There are 3 SMRs and 1 precharge resistor. SMRB, SMRP, SMRG, and the precharge resistor are located in the HV battery junction block assembly in the HV battery pack.

To connect to the high voltage power system, the vehicle will first turn on SMRP and SMRB to charge the vehicle through the system main resistor. Then, SMRP will be turned off after SMRG is turned on. To shut off the high voltage power system, SMRB and SMRG are turned off.

Scheme 542

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Scheme 543

Scheme 544

Scheme 545

1. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HYBRID BATTERY J/B (SUB1)) Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-5 (SR2P) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector: (to Power Management Control ECU) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-5 (SR2P) - Body ground Power switch off 112 to 274 ohms Connect the power management control ECU connector. NG --> See step 3 OK: Go to next step
2. CHECK FOR INTERMITTENT PROBLEMS Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems) . Result Result Proceed to Malfunction does not occur A Malfunction occurs B B --> REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA A --> See step 7
3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - PACK WIRE CONNECTOR) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect the HV battery connector. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-5 (SR2P) and Ro1-2 (SR2P) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery Connector) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-5 (SR2P) - Ro1-2 (SR2P) Power switch off Below 1 ohms L116-5 (SR2P) and Ro1-2 (SR2P) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-10 (GND) - Body ground Power switch off Below 1 ohms Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (HV BATTERY CONNECTOR - HYBRID BATTERY J/B ASSEMBLY (SUB1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o6 from the hybrid battery junction block assembly (sub1). Disconnect the HV battery connector. Turn the power switch on (IG). NOTE: Turning the power switch on (IG) with the power management control ECU and hybrid battery junction block assembly connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-2 (SR2P) and o6-3 (SR2P) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to HV Battery Connector) *b Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub1)) Turn the power switch off Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition Ro1-2 (SR2P) - o6-3 (SR2P) Power switch off Below 1 ohms Ro1-2 (SR2P) and o6-3 (SR2P) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the HV battery connector. Connect the hybrid battery junction block assembly (sub1) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) - BODY GROUND) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector o6 from the hybrid battery junction block assembly (sub1). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition o6-2 (GND2) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Hybrid Battery Junction Block Assembly (sub1)) HINT: When the result is NG, a malfunction in the connection between connector Ro1 and the hybrid battery junction block assembly (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the hybrid battery junction block assembly (sub1) connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE HV BATTERY OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

Refer to the description for DTC P332A-366. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

Note. This vehicle is equipped with 3 HV battery packs in the HV battery. Even if a part related to one of the battery packs is malfunctioning, the system may use one of the other battery packs to activate the hybrid system (operate in the READY state). If DTC P332C-378 is stored, plug-in charge the vehicle using a charger cable after the repair in order to check whether the malfunction has been fully repaired. (Refer to the procedure below.) If plug-in charging completes normally, it can be assured that the failure has been fixed because a system check is performed for all 3 HV battery packs during charging. Connect the plug-in charge connector to the plug-in charge inlet and start plug-in charging. Plug-in charge the vehicle until the charge indicator on the upper left of the instrument panel goes off. HINT: Charging time varies depending on the SOC before charging. It takes 3.5 to 4 hours to fully charge the vehicle. Make sure that the charge indicator goes off, and then disconnect the charge connector from the charge inlet. Turn the power switch on (IG). Check that the multi-information display shows "CHARGE COMPLETE".

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If P332C-378 is stored, the hybrid system cannot be turned on.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P332C-378 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No. 2 Power Cable P304F-446 DC/DC Converter No. 2 Circuit shorted P3088-363 Battery No. 3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No. 2 Performance P3198-663 DC/DC Converter No. 2 Performance P3199-664 DC/DC Converter No. 2 Performance P319F-566, 567, 568, 569 DC/DC Converter No. 2 Performance P324E-788 MG-ECU Power Relay Intermittent Circuit P3322-368 Hybrid Battery Positive Contactor "B" Control Circuit Low P3323-367 Hybrid Battery Positive Contactor "B" Control Circuit High P332A-366 Hybrid Battery Precharge Contactor "B" Control Circuit Low P331D-385 Hybrid Battery Positive Contactor "C" Circuit Stuck Closed P3326-370 Hybrid Battery Negative Contactor "B" Control Circuit Low P3327-369 Hybrid Battery Negative Contactor "B" Control Circuit High P332B-365 Hybrid Battery Precharge Contactor "B" Control Circuit High P332D-380 Hybrid Battery Negative Contactor "B" Circuit Stuck Closed P332E-379 Hybrid Battery Precharge Contactor "B" Circuit Stuck Closed U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P332C-378 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. B --> See step 6 A: Go to next step
2. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P332C-378. Result Result Proceed to VH-Voltage after Boosting is less than 55 V. A VH-Voltage after Boosting is 55 V or more. B Turn the power switch off. A --> See step 5 B: Go to next step
3. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A - B Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly (sub1) without removing it from the vehicle, in order to keep the relay closed. If the result of reading the freeze frame data is B, the hybrid battery junction block assembly (sub1) must be replaced. Measuring resistance can determine that this is either a present or past malfunction. NG --> See step 4 OK --> See step 4
4. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

1. Refer to the description for DTC P332A-366. Refer to «DESCRIPTION»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-circuit-tests-phv) .
2. This circuit uses the power management control ECU to monitor the system main relays and stops the system if a malfunction is detected in the relays, because it may be impossible to shut off the high-voltage system if any of the relays becomes stuck.

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If P332C-381 is stored, the hybrid system cannot be turned on.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P332C-381 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P0A1F-832 Battery Energy Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No.2 Power Cable P3088-363 Battery No.3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No.2 Performance P3198-663 DC/DC Converter No.2 Performance P3199-664 DC/DC Converter No.2 Performance P319F-566, 567, 568, 569 DC/DC Converter No.2 Performance P324E-788 MG-ECU Power Relay Intermittent Circuit P3322-368 Hybrid Battery Positive Contactor "B" Control Circuit Low P3323-367 Hybrid Battery Positive Contactor "B" Control Circuit High P332A-366 Hybrid Battery Precharge Contactor "B" Control Circuit Low P3326-370 Hybrid Battery Negative Contactor "B" Control Circuit Low P3327-369 Hybrid Battery Negative Contactor "B" Control Circuit High P332B-365 Hybrid Battery Precharge Contactor "B" Control Circuit Low U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module U0111 (all INF codes)*1 Lost Communication with Battery Energy Control Module "A" HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P332C-381 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 7 A: Go to next step
2. CHECK DTC OUTPUT (HV BATTERY) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/HV Battery/Trouble Codes. Check if DTCs are output. Result Result Proceed to P332C-381 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P300E-123 Hybrid Battery Pack No.2 Sensor Module P32B2-123 Hybrid Battery No.2 Voltage Sensor "A" Circuit Low P32B7-123 Hybrid Battery No.2 Voltage Sensor "B" Circuit Low P32BC-123 Hybrid Battery No.2 Voltage Sensor "C" Circuit Low P32C2-123 Hybrid Battery No.2 Voltage Sensor "D" Circuit Low P32C7-123 Hybrid Battery No.2 Voltage Sensor "E" Circuit Low P32CC-123 Hybrid Battery No.2 Voltage Sensor "F" Circuit Low P32D2-123 Hybrid Battery No.2 Voltage Sensor "G" Circuit Low P32D7-123 Hybrid Battery No.2 Voltage Sensor "H" Circuit Low P32DC-123 Hybrid Battery No.2 Voltage Sensor "I" Circuit Low P32E2-123 Hybrid Battery No.2 Voltage Sensor "J" Circuit Low P32E7-123 Hybrid Battery No.2 Voltage Sensor "K" Circuit Low P32EC-123 Hybrid Battery No.2 Voltage Sensor "L" Circuit Low P32F2-123 Hybrid Battery No.2 Voltage Sensor "M" Circuit Low P32F7-123 Hybrid Battery No.2 Voltage Sensor "N" Circuit Low P32FC-123 Hybrid Battery No.2 Voltage Sensor "O" Circuit Low P3302-123 Hybrid Battery No.2 Voltage Sensor "P" Circuit Low P302A-123 Open in Hybrid Battery No.2 Cell Voltage Detection Circuit P302B-123 Hybrid Battery No.2 Cell Voltage Detection Circuit Range/ Performance P304A-123 Hybrid Battery No.2 Voltage Sensor All Circuits Low U129A-123 Lost Communication with Hybrid Battery No.2 Pack Sensor Module U0293-829, 830, 831 Lost Communication with Hybrid Vehicle Control System HINT: P332C-381 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 9 A: Go to next step
3. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P332C-381. Result Result Proceed to VH-Voltage after Boosting minus Cnv No.2 VL-Vol bef Bost is 100 V or less. A The preceding condition is not satisfied. B B --> See step 10 A: Go to next step
4. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRB) Tester Connection Switch Condition Specified Condition A - B Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If both contacts of the SMR (sub1) are stuck closed, DTC P332C-381 may be stored instead of P331D-385. If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P332C-381 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRG) Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub2)) HINT: If both contacts of the SMR (sub1) are stuck closed, DTC P332C-381 may be stored instead of P331D-385. If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P332C-381 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. If the resistance is between 28.5 and 31.5 ohms, it can be determined that SMRP is stuck closed. NG --> See step 11 OK: Go to next step
5. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRB) Tester Connection Switch Condition Specified Condition A - B Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P332C-381 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. Measure the resistance according to the value(s) in the table below. Standard Resistance (SMRG) Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed. If DTC P332C-381 is output, the hybrid battery junction block assembly (sub1) and hybrid battery block (sub2) are suspected. Check the continuity to determine the malfunctioning part. If the resistance is between 28.5 and 31.5 ohms, it can be determined that SMRP is stuck closed. NG --> See step 8 OK --> See step 6
6. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
8. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
9. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-system-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
10. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
11. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB2). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC P332A-366. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

Note. This vehicle is equipped with 3 HV battery packs in the HV battery. Even if a part related to one of the battery packs is malfunctioning, the system may use one of the other battery packs to activate the hybrid system (operate in the READY state). If DTC P332D-380 is stored, plug-in charge the vehicle using a charger cable after the repair in order to check whether the malfunction has been fully repaired. (Refer to the procedure below.) If plug-in charging completes normally, it can be assured that the failure has been fixed because a system check is performed for all 3 HV battery packs during charging. Connect the plug-in charge connector to the plug-in charge inlet and start plug-in charging. Plug-in charge the vehicle until the charge indicator on the upper left of the instrument panel goes off. HINT: Charging time varies depending on the SOC before charging. It takes 3.5 to 4 hours to fully charge the vehicle. Make sure that the charge indicator goes off, and then disconnect the charge connector from the charge inlet. Turn the power switch on (IG). Check that the multi-information display shows "CHARGE COMPLETE".

HINT

1. Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
2. If P332D-380 is stored, the hybrid system cannot be turned on.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P332D-380 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P0A1F-832 Battery Energy Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No.2 Power Cable P304F-446 DC/DC Converter No.2 Circuit shorted P3088-363 Battery No.3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No.2 Performance P3198-663 DC/DC Converter No.2 Performance P3199-664 DC/DC Converter No.2 Performance P319F-566, 567, 568, 569 DC/DC Converter No.2 Performance P324E-788 MG-ECU Power Relay Intermittent Circuit P3322-368 Hybrid Battery Positive Contactor "B" Control Circuit Low P3323-367 Hybrid Battery Positive Contactor "B" Control Circuit High P332A-366 Hybrid Battery Precharge Contactor "B" Control Circuit Low P331D-385 Hybrid Battery Positive Contactor "C" Circuit Stuck Closed P3326-370 Hybrid Battery Negative Contactor "B" Control Circuit Low P3327-369 Hybrid Battery Negative Contactor "B" Control Circuit High P332B-365 Hybrid Battery Precharge Contactor "B" Control Circuit High P332C-381 Hybrid Battery Positive Contactor "B" Circuit Stuck Closed U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module U0111 (all INF codes)*1 Lost Communication with Battery Energy Control Module "A" HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P332D-380 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 5 A: Go to next step
2. CHECK DTC OUTPUT (HV BATTERY) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/HV Battery/Trouble Codes. Check if DTCs are output. Result Result Proceed to P332D-380 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P300E-123 Hybrid Battery Pack No.2 Sensor Module P32B2-123 Hybrid Battery No.2 Voltage Sensor "A" Circuit Low P32B7-123 Hybrid Battery No.2 Voltage Sensor "B" Circuit Low P32BC-123 Hybrid Battery No.2 Voltage Sensor "C" Circuit Low P32C2-123 Hybrid Battery No.2 Voltage Sensor "D" Circuit Low P32C7-123 Hybrid Battery No.2 Voltage Sensor "E" Circuit Low P32CC-123 Hybrid Battery No.2 Voltage Sensor "F" Circuit Low P32D2-123 Hybrid Battery No.2 Voltage Sensor "G" Circuit Low P32D7-123 Hybrid Battery No.2 Voltage Sensor "H" Circuit Low P32DC-123 Hybrid Battery No.2 Voltage Sensor "I" Circuit Low P32E2-123 Hybrid Battery No.2 Voltage Sensor "J" Circuit Low P32E7-123 Hybrid Battery No.2 Voltage Sensor "K" Circuit Low P32EC-123 Hybrid Battery No.2 Voltage Sensor "L" Circuit Low P32F2-123 Hybrid Battery No.2 Voltage Sensor "M" Circuit Low P32F7-123 Hybrid Battery No.2 Voltage Sensor "N" Circuit Low P32FC-123 Hybrid Battery No.2 Voltage Sensor "O" Circuit Low P3302-123 Hybrid Battery No.2 Voltage Sensor "P" Circuit Low P302A-123 Open in Hybrid Battery No.2 Cell Voltage Detection Circuit P302B-123 Hybrid Battery No.2 Cell Voltage Detection Circuit Range/ Performance P304A-123 Hybrid Battery No.2 Voltage Sensor All Circuits Low U129A-123 Lost Communication with Hybrid Battery No.2 Pack Sensor Module U0293-829, 830, 831 Lost Communication with Hybrid Vehicle Control System HINT: P332D-380 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 6 A: Go to next step
3. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly (sub1) without removing it from the vehicle, in order to keep the relay closed. If P332D-380 is output, the hybrid battery junction block assembly (sub1) must be replaced. Measuring resistance can determine if this is either a present or past malfunction. NG --> See step 4 OK --> See step 4
4. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-system-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

Refer to the description for DTC P332A-366. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC P332A-366. Refer to WIRING DIAGRAM .

Note. This vehicle is equipped with 3 HV battery packs in the HV battery. Even if a part related to one of the battery packs is malfunctioning, the system may use one of the other battery packs to activate the hybrid system (operate in the READY state). If DTC P332E-379 is stored, plug-in charge the vehicle using a charger cable after the repair in order to check whether the malfunction has been fully repaired. (Refer to the procedure below.) If plug-in charging completes normally, it can be assured that the failure has been fixed because a system check is performed for all 3 HV battery packs during charging. Connect the plug-in charge connector to the plug-in charge inlet and start plug-in charging. Plug-in charge the vehicle until the charge indicator on the upper left of the instrument panel goes off. HINT: Charging time varies depending on the SOC before charging. It takes 3.5 to 4 hours to fully charge the vehicle. Make sure that the charge indicator goes off, and then disconnect the charge connector from the charge inlet. Turn the power switch on (IG). Check that the multi-information display shows "CHARGE COMPLETE".

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

1. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to P332E-379 only is output. A Any of the following DTCs are also output. B DTC No. Relevant Diagnosis P0A1B-164, 193, 512, 786 Drive Motor "A" Control Module P0A1D-148 Hybrid Powertrain Control Module P2511-149 ECM/PCM Power Relay Sense Circuit Intermittent P300D-361 Battery No.2 Power Cable P304F-446 DC/DC Converter No. 2 Circuit shorted P3088-363 Battery No.3 Power Cable Malfunction P3089-173, 600, 601, 616, 617, 618, 619, 620, 652 DC/DC Converter No. 2 Performance P3198-663 DC/DC Converter No. 2 Performance P3199-664 DC/DC Converter No. 2 Performance P319F-566, 567, 568, 569 DC/DC Converter No. 2 Performance P324E-788 MG-ECU Power Relay Intermittent Circuit P3322-368 Hybrid Battery Positive Contactor "B" Control Circuit Low P3323-367 Hybrid Battery Positive Contactor "B" Control Circuit High P332A-366 Hybrid Battery Precharge Contactor "B" Control Circuit Low P331D-385 Hybrid Battery Positive Contactor "C" Circuit Stuck Closed P3326-370 Hybrid Battery Negative Contactor "B" Control Circuit Low P3327-369 Hybrid Battery Negative Contactor "B" Control Circuit High P332B-365 Hybrid Battery Precharge Contactor "B" Control Circuit High P332D-380 Hybrid Battery Negative Contactor "B" Circuit Stuck Closed U0110 (all INF codes)*1 Lost Communication with Driver Motor Control Module HINT: *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure. P332E-379 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output. Turn the power switch off. B --> See step 6 A: Go to next step
2. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Read the freeze frame data of DTC P332E-379. Result Result Proceed to VH-Voltage after Boosting is less than 55 V. A VH-Voltage after Boosting is 55 V or more. B Turn the power switch off. A --> See step 5 B: Go to next step
3. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition C - D Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Component with harness connected (Hybrid Battery Junction Block Assembly (sub1)) HINT: If a system main relay is stuck closed, inspect the hybrid battery junction block assembly (sub1) without removing it from the vehicle, in order to keep the relay closed. If the result of reading the freeze frame data is B, the hybrid battery junction block assembly (sub1) must be replaced. Measuring resistance can determine that this is either a present or past malfunction. NG --> See step 4 OK --> See step 4
4. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
5. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

1. The power management control ECU (HV CPU) transmits and receives signals via CAN communication to and from the ECM, skid control ECU assembly, power steering ECU assembly, main body ECU, airbag sensor assembly, and air conditioning amplifier assembly.

If the power management control ECU (HV CPU) detect problem with CAN communication with the ECU , it will illuminate the MIL and set a DTC.

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY) and after a few seconds, turn the power switch off. [A]
6. Repeat [A] 3 times. [B]
7. Turn the power switch on (IG) and turn the Techstream on.
8. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [C]
9. Check that permanent DTCs are cleared.
10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

HINT

1. If a permanent DTC is output, the system is malfunctioning.
2. If no permanent DTC is output, the system is normal.

1. CHECK DTC OUTPUT (ALL) Connect the Techstream to the DLC3. Turn the power switch on (IG). Check for DTCs of all systems by following the prompts on the Techstream screen. Check if DTCs are output. Result Result Proceed to Power management control ECU outputs P2532-772 A Power management control ECU does not output P2532-772 B Turn the power switch off. B --> See step 2 A --> See step 3
2. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/toyota/prius-phv/pre-iii-2010-2011/remont/communication-devices/#can-communication-system-diagnostics-introduction-phv__how-to-proceed-with-troubleshooting)
3. GO TO DTC CHART (P2532-772). Refer to «DTC P2532-772: Ignition Switch Run Position Circuit High»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0aa6-526-p3088-362-except-phv)

1. For a description of the inverter with converter assembly. Refer to «DESCRIPTION»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) . The inverter with converter assembly (MG ECU) controls MG2 based on commands from the power management control ECU (HV CPU). The inverter with converter assembly (MG ECU) monitors communication data and detects malfunctions.

Scheme 546

Note. If any of the DTCs U0110-159, U0110-656, and U0110-657 was set due to incomplete engagement of the connectors, and if the system returns to normal when the power switch is turned on (IG) after clearing the DTCs, DTC P324E-788 will be set. Proceed to troubleshooting without considering DTC P324E-788.

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and the electric vehicle charger assembly.

Scheme 547

Scheme 548

Scheme 549

Scheme 550

Scheme 551

Scheme 552

Scheme 553

Scheme 554

Scheme 555

Scheme 556

Scheme 557

1. CHECK FUSE (PCU). Refer to «PROCEDURE - Step 14»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 14 OK: Go to next step
2. CLEAR DTC. Refer to «PROCEDURE - Step 5»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0069-273-p0a38-257-phv) NEXT: Go to next step
3. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to DTC U0110-159, 656 or 657 is output. A DTC U0110-159, 656 and 657 are not output. B Turn the power switch off. B --> See step 18 A: Go to next step
4. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY POWER SOURCE CIRCUIT). Refer to «PROCEDURE - Step 15»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM) Turn the power switch on (IG). Connect an oscilloscope between the power management control ECU terminals specified in the following table, and measure the waveform. TEXT IN ILLUSTRATION *a Component with harness connected (Power Management Control ECU) - - Item Contents Tester Connection CH1: A21-18 (CLK+) - L117-6 (E1) CH2: A21-19 (CLK-) - L117-6 (E1) Equipment Setting 1V/DIV., 1μs/DIV, Condition Power switch on (IG) Result Result Proceed to The waveform appears as shown in the illustration. A The waveform differs from the one shown in the illustration. B HINT: Inspect with the connector connected. If pulses are generated, the shape of the waveform can be assumed to be normal. The shape of the waveform may vary according to communication conditions. Turn the power switch off. B --> See step 8 A: Go to next step
6. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM) Turn the power switch on (IG). Connect an oscilloscope between the power management control ECU terminals specified in the following table, and measure the waveform. TEXT IN ILLUSTRATION *a Component with harness connected (Power Management Control ECU) - - Item Contents Tester Connection CH1: A21-21 (REQ+) - L117-6 (E1) CH2: A21-20 (REQ-) - L117-6 (E1) Equipment Setting 1V/DIV., 1ms/DIV, Condition Power switch on (IG) Result Result Proceed to The waveform appears as shown in the illustration. A The waveform differs from the one shown in the illustration. B HINT: Inspect with the connector connected. If pulses are generated, the shape of the waveform can be assumed to be normal. The shape of the waveform may vary according to communication conditions. Turn the power switch off. B --> See step 10 A: Go to next step
7. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM) Turn the power switch on (IG). Connect an oscilloscope between the power management control ECU terminals specified in the following table, and measure the waveform. TEXT IN ILLUSTRATION *a Component with harness connected (Power Management Control ECU) - - Item Contents Tester Connection CH1: A21-29 (MTH+) - L117-6 (E1) CH2: A21-28 (MTH-) - L117-6 (E1) Equipment Setting 1V/DIV., 200 μs/DIV, Condition Power switch on (IG) Result Result Proceed to The waveform appears as shown in the illustration. A The waveform differs from the one shown in the illustration. B HINT: Inspect with the connector connected. If pulses are generated, the shape of the waveform can be assumed to be normal. The shape of the waveform may vary according to communication conditions. Turn the power switch off. B --> See step 12 A --> See step 19
8. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A21 from the power management control ECU. Disconnect connector A59 from the inverter with converter assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A21-18 (CLK+) - Body ground Power switch on (IG) Below 1 V A21-19 (CLK-) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Inverter with Converter Assembly) NOTE: Turning the power switch on (IG) with the power management control ECU connector and the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A21-18 (CLK+) - A59-5 (CLK+) Power switch off Below 1 ohms A21-19 (CLK-) - A59-15 (CLK-) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A21-18 (CLK+) or A59-5 (CLK+) - Body ground and other terminals Power switch off 10 kohms or higher A21-19 (CLK-) or A59-15 (CLK-) - Body ground and other terminals Power switch off 10 kohms or higher Connect the inverter with converter assembly connector. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. CHECK INVERTER WITH CONVERTER ASSEMBLY Disconnect connector A21 from the power management control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A21-18 (CLK+) - A21-19 (CLK-) Power switch off 80 to 170 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) Connect the power management control ECU connector. NG --> See step 20 OK --> See step 19
10. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A21 from the power management control ECU. Disconnect connector A59 from the inverter with converter assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A21-21 (REQ+) - Body ground Power switch on (IG) Below 1 V A21-20 (REQ-) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Inverter with Converter Assembly) NOTE: Turning the power switch on (IG) with the power management control ECU connector and the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A21-21 (REQ+) - A59-6 (REQ+) Power switch off Below 1 ohms A21-20 (REQ-) - A59-16 (REQ-) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A21-21 (REQ+) or A59-6 (REQ+) - Body ground and other terminals Power switch off 10 kohms or higher A21-20 (REQ-) or A59-16 (REQ-) - Body ground and other terminals Power switch off 10 kohms or higher Connect the inverter with converter assembly connector. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
11. CHECK INVERTER WITH CONVERTER ASSEMBLY Disconnect connector A21 from the power management control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A21-21 (REQ+) - A21-20 (REQ-) Power switch off 80 to 170 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) Connect the power management control ECU connector. NG --> See step 20 OK --> See step 19
12. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A21 from the power management control ECU. Disconnect connector A59 from the inverter with converter assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A21-29 (MTH+) - Body ground Power switch on (IG) Below 1 V A21-28 (MTH-) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Inverter with Converter Assembly) NOTE: Turning the power switch on (IG) with the power management control ECU connector and the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A21-29 (MTH+) - A59-7 (MTH+) Power switch off Below 1 ohms A21-28 (MTH-) - A59-17 (MTH-) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A21-29 (MTH+) or A59-7 (MTH+) - Body ground and other terminals Power switch off 10 kohms or higher A21-28 (MTH-) or A59-17 (MTH-) - Body ground and other terminals Power switch off 10 kohms or higher Connect the inverter with converter assembly connector. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
13. CHECK POWER MANAGEMENT CONTROL ECU Disconnect connector A59 from the inverter with converter assembly. Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Component with harness connected (Power Management Control ECU) - - Standard Resistance Tester Connection Switch Condition Specified Condition A21-29 (MTH+) - A21-28 (MTH-) Power switch off 80 to 170 ohms Connect the inverter with converter assembly connector. NG --> See step 19 OK --> See step 20
14. REPLACE FUSE (PCU) Replace the PCU fuse. TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 PCU Fuse Turn the power switch on (READY). Check if there is an open circuit in the PCU fuse in engine room junction block assembly. OK There is no open circuit in the PCU fuse. HINT: If the fuse does not become open again after turning the power switch on (READY), it can be assumed that the previous fuse failed due to age. Turn the power switch off. NG --> See step 15 OK --> COMPLETED
15. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - PCU FUSE) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Remove the PCU fuse from the engine room junction block assembly. TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 PCU Fuse Disconnect connector A59 from the inverter with converter assembly. Measure the resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 PCU Fuse *a Front view of wire harness connector (to Inverter with Converter Assembly) - - Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A59-10 (+B) - 2 (PCU fuse) Power switch off Below 1 ohms A59-9 (+B2) - 2 (PCU fuse) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A59-10 (+B), A59-9 (+B2) or 2 (PCU fuse) - Body ground and other terminals Power switch off 10 kohms or higher Connect the inverter with converter assembly connector. Install the PCU fuse. NG --> See step 17 OK: Go to next step
16. REPLACE INVERTER WITH CONVERTER ASSEMBLY Replace the inverter with converter assembly. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv) . NEXT --> REPLACE FUSE (PCU)
17. REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> REPLACE FUSE (PCU)
18. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems)
19. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
20. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

Refer to the description for DTC U0110-159. Refer to DESCRIPTION .

Refer to the wiring diagram for DTC U0110-159. Refer to WIRING DIAGRAM .

Note. If the DTC U0110-160 was set due to incomplete engagement of the connectors, and if the system returns to normal when the power switch is on (IG) after clearing the DTCs, DTC P324E-788 will be set. Proceed to troubleshooting without considering DTC P324E-788.

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and the electric vehicle charger assembly.

Scheme 558

Scheme 559

Scheme 560

1. CLEAR DTC. Refer to «PROCEDURE - Step 5»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0069-273-p0a38-257-phv) NEXT: Go to next step
2. CHECK DTC OUTPUT (HV) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. Check if DTCs are output. Result Result Proceed to DTC U0110-160 is output. A DTC U0110-160 is not output. B Turn the power switch off. B --> See step 20 A: Go to next step
3. CHECK INVERTER WITH CONVERTER ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION). Refer to «PROCEDURE - Step 10»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) C --> CONNECT SECURELY B --> REPLACE MALFUNCTIONING PARTS A: Go to next step
4. CHECK INVERTER WITH CONVERTER ASSEMBLY (MOTOR CABLE CONNECTION CONDITION). Refer to «PROCEDURE - Step 11»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) C --> CONNECT SECURELY B --> REPLACE MALFUNCTIONING PARTS A: Go to next step
5. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MG1). Refer to «PROCEDURE - Step 12»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 16 OK: Go to next step
6. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MG2). Refer to «PROCEDURE - Step 13»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 18 OK: Go to next step
7. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM) Turn the power switch on (IG). Connect an oscilloscope between the power management control ECU terminals specified in the following table, and measure the waveform. TEXT IN ILLUSTRATION *a Component with harness connected (Power Management Control ECU) - - Item Contents Tester Connection CH1: A21-22 (HTM+) - L117-6 (E1) CH2: A21-23 (HTM-) - L117-6 (E1) Equipment Setting 1V/DIV., 200 μs/DIV. Condition Power switch on (IG) Result Result Proceed to The waveform appears as shown in the illustration. A The waveform differs from the one shown in the illustration. B HINT: Inspect with the connector connected. If pulses are generated, the shape of the waveform can be assumed to be normal. The shape of the waveform may vary according to communication conditions. Turn the power switch off. B --> See step 14 A: Go to next step
8. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM) See step 5 B --> See step 10 A: Go to next step
9. CHECK POWER MANAGEMENT CONTROL ECU (CHECK WAVEFORM) See step 6 B --> See step 12 A --> See step 22
10. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) See step 8 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
11. CHECK INVERTER WITH CONVERTER ASSEMBLY See step 9 NG --> See step 22 OK --> See step 21
12. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) See step 10 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
13. CHECK INVERTER WITH CONVERTER ASSEMBLY See step 11 NG --> See step 22 OK --> See step 21
14. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector A21 from the power management control ECU. Disconnect connector A59 from the inverter with converter assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A21-22 (HTM+) - Body ground Power switch on (IG) Below 1 V A21-23 (HTM-) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Inverter with Converter Assembly) NOTE: Turning the power switch on (IG) with the connector of the power management control ECU and the low voltage connector of the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A21-22 (HTM+) - A59-8 (HTM+) Power switch off Below 1 ohms A21-23 (HTM-) - A59-18 (HTM-) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A21-22 (HTM+) or A59-8 (HTM+) - Body ground and other terminals Power switch off 10 kohms or higher A21-23 (HTM-) or A59-18 (HTM-) - Body ground and other terminals Power switch off 10 kohms or higher Connect the inverter with converter assembly connector. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
15. CHECK INVERTER WITH CONVERTER ASSEMBLY Disconnect connector A21 from the power management control ECU. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition A21-22 (HTM+) - A21-23 (HTM-) Power switch off 80 to 170 ohms TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) Connect the power management control ECU connector. NG --> See step 22 OK --> See step 21
16. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR CABLE CONNECTION CONDITION). Refer to «PROCEDURE - Step 27»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) C --> CONNECT SECURELY B --> REPLACE MALFUNCTIONING PARTS A: Go to next step
17. CHECK GENERATOR CABLE. Refer to «PROCEDURE - Step 28»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 23 OK --> See step 25
18. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR CABLE CONNECTION CONDITION). Refer to «PROCEDURE - Step 29»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) C --> CONNECT SECURELY B --> REPLACE MALFUNCTIONING PARTS A: Go to next step
19. CHECK MOTOR CABLE. Refer to «PROCEDURE - Step 30»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-control-system-diagnostic-codes-p0a3f-243-p0a7a-122-phv) NG --> See step 24 OK --> See step 25
20. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems)
21. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
22. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
23. REPLACE GENERATOR CABLE. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/automatic-trans/#automatic-transmission-hybrid-service-information-phv)
24. REPLACE MOTOR CABLE. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/automatic-trans/#automatic-transmission-hybrid-service-information-phv)
25. REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/automatic-trans/#automatic-transmission-hybrid-service-information-phv)

1. The power management control ECU (HV CPU) uses internal communication to transmit and receive signals to and from the HV battery CPU which is also located in the power management control ECU.

If the power management control ECU (HV CPU) detect problem with CAN communication with the ECU , it will illuminate the MIL and set a DTC.

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY) and after a few seconds, turn the power switch off. [A]
6. Repeat [A] 3 times. [B]
7. Turn the power switch on (IG) and turn the Techstream on.
8. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. [C]
9. Check that permanent DTCs are cleared.
10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

HINT

1. If a permanent DTC is output, the system is malfunctioning.
2. If no permanent DTC is output, the system is normal.

1. REPLACE POWER MANAGEMENT CONTROL ECU (HV) Replace the power management control ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv) . NEXT --> COMPLETED

If there is a malfunction in the air conditioning amplifier assembly, DTC U0424-537 will be stored.

1. CHECK DTC OUTPUT (AIR CONDITIONER) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Body Electrical/Air Conditioner/Trouble Codes. Check if DTCs related to the air conditioning system (A/C) are output. Result Result Proceed to DTCs related to A/C are not output. A DTCs related to A/C are output. B Turn the power switch off. B --> See step 3 A --> See step 2
2. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/automatic-hvac-system/#air-conditioning-service-information-phv)
3. CHECK AIR CONDITIONING SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/toyota/prius-phv/pre-iii-2010-2011/remont/automatic-hvac-system/#heating-air-conditioning-diagnostics-introduction-phv__diagnostic-trouble-code-chart)

The battery smart unit detects the HV battery conditions (voltage, current, and temperature) and the battery cooling fan voltage, and sends the detected signals to the power management control ECU via the serial communication system.

If a malfunction in communication line between the battery smart unit (sub1) and power management control ECU (HV CPU) is detected, the power management control ECU (HV CPU) illuminates the MIL and sets a DTC.

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG) and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
4. Turn the power switch off.
5. Turn the power switch on (READY) and after a few seconds, turn the power switch off. [A]
6. Repeat [A] 3 times. [B]
7. Turn the power switch on (IG) and turn the Techstream on.
8. Enter the following menus: Powertrain/Hybrid Control/Trouble Codes. [C]
9. Check that permanent DTCs are cleared.
10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again. HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Refer to the wiring diagram for DTC P0AFC-123. Refer to WIRING DIAGRAM .

HINT

Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and the electric vehicle charger assembly.

Scheme 561

Scheme 562

Scheme 563

Scheme 564

Scheme 565

Scheme 566

1. CHECK BATTERY SMART UNIT ((SUB1) (IGC1, AM1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Remove the upper hybrid battery cover sub-assembly. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition o5-3 (AM1) - o5-6 (GND1) Power switch off 8.6 V or higher o5-9 (IGC1) - o5-6 (GND1) Power switch on (IG) 8.6 V or higher TEXT IN ILLUSTRATION *a Component with harness connected (Battery Smart Unit (sub1)) NOTE: If the power switch is turned on (IG) with the service plug grip removed, DTCs will be stored. If DTCs are output, clear the DTCs using the Techstream. Turn the power switch off. Install the upper hybrid battery cover sub-assembly. B --> See step 5 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - HV BATTERY) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector Ro1 from the HV battery. Disconnect connector L116 from the power management control ECU. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-25 (BH2+) - Body ground Power switch on (IG) Below 1 V L116-24 (BH2-) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to HV Battery) NOTE: Turning the power switch on (IG) with the power management control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition L116-25 (BH2+) - Ro1-5 (BH2+) Power switch off Below 1 ohms L116-24 (BH2-) - Ro1-6 (BH2-) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition L116-25 (BH2+) or Ro1-5 (BH2+) - Body ground and other terminals Power switch off 10 kohms or higher L116-24 (BH2-) or Ro1-6 (BH2-) - Body ground and other terminals Power switch off 10 kohms or higher Connect the power management control ECU connector. Connect the HV battery connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (HV BATTERY - BATTERY SMART UNIT (SUB1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector Ro1 from the HV battery. Remove the upper hybrid battery cover sub-assembly. Disconnect connector o5 from the battery smart unit (sub1). Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-5 (BH2+) or o5-4 (BH2+) - Body ground Power switch on (IG) Below 1 V Ro1-6 (BH2-) or o5-5 (BH2-) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Component without harness connected (HV Battery) *b Rear view of wire harness connector (to Battery Smart Unit (sub1)) NOTE: Turning the power switch on (IG) with the battery smart unit connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition Ro1-5 (BH2+) - o5-4 (BH2+) Power switch off Below 1 ohms Ro1-6 (BH2-) - o5-5 (BH2-) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition Ro1-5 (BH2+) or o5-4 (BH2+) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-6 (BH2-) or o5-5 (BH2-) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Pm1 and the battery smart unit (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the battery smart unit (sub1) connector. Install the upper hybrid battery cover sub-assembly. Connect the HV battery connector. NG --> REPAIR HARNESS OR CONNECTOR OR REPLACE HV BATTERY OK: Go to next step
4. CHECK BATTERY SMART UNIT (WAVEFORM (SUB1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Remove the upper hybrid battery cover sub-assembly. Turn the power switch on (IG). Connect an oscilloscope between the battery smart unit terminals specified in the table below, and measure the waveform. Item Contents Terminal CH1: o5-4 (BH2+) - o5-6 (GND1) CH2: o5-5 (BH2-) - o5-6 (GND1) Equipment Setting 2V/DIV., 500μs/DIV Condition Power switch on (IG) TEXT IN ILLUSTRATION *a Component with harness connector (Battery Smart Unit (sub1)) NOTE: Turning the power switch on (IG) with service plug grip disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Install the upper hybrid battery cover sub-assembly. NG --> See step 6 OK --> See step 7
5. CHECK HARNESS AND CONNECTOR (HV BATTERY - BATTERY SMART UNIT (SUB1)) WARNING: Be sure to wear insulated gloves. Check that the 3 service plug grips are not installed. WARNING: Be sure to remove the 3 service plug grips before beginning work. NOTE: After removing the service plug grips, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction. Disconnect connector Ro1 from the HV battery. Remove the upper hybrid battery cover sub-assembly. Disconnect connector o5 from the battery smart unit (sub1). Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition Ro1-11 (AM1) or o5-3 (AM1) - Body ground Power switch on (IG) Below 1 V Ro1-20 (GND1) or o5-6 (GND1) - Body ground Power switch on (IG) Below 1 V Ro1-1 (IGC1) or o5-9 (IGC1) - Body ground Power switch on (IG) Below 1 V TEXT IN ILLUSTRATION *a Component without harness connected (HV Battery) *b Rear view of wire harness connector (to Battery Smart Unit (sub1)) NOTE: Turning the power switch on (IG) with the battery smart unit connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection. Turn the power switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition Ro1-11 (AM1) - o5-3 (AM1) Power switch off Below 1 ohms Ro1-20 (GND1) - o5-6 (GND1) Power switch off Below 1 ohms Ro1-1 (IGC1) - o5-9 (IGC1) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition Ro1-11 (AM1) or o5-3 (AM1) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-20 (GND1) or o5-6 (GND1) - Body ground and other terminals Power switch off 10 kohms or higher Ro1-1 (IGC1) or o5-9 (IGC1) - Body ground and other terminals Power switch off 10 kohms or higher HINT: When the result is NG, a malfunction in the connection between connector Pm1 and the battery smart unit (sub1) is suspected. However, because the battery harness is not available as a supply part, if the harness cannot be repaired, replace the HV battery. Connect the battery smart unit (sub1) connector. Install the upper hybrid battery cover sub-assembly. Connect the HV battery connector. NG --> REPAIR HARNESS OR CONNECTOR OR REPLACE HV BATTERY OK --> CHECK POWER SOURCE CIRCUIT
6. REPLACE BATTERY SMART UNIT (SUB1). Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)

When the auxiliary battery is replaced or the cable is disconnected from its negative (-) battery terminal, the ISC learning value will be initialized and symptoms as a noise from the hybrid vehicle transaxle assembly may occur until ISC learning is performed.

Therefore, perform ISC learning when the auxiliary battery is replaced or the cable is disconnected from the negative (-) terminal of the auxiliary battery.

1. READ VALUE USING TECHSTREAM (ISC LEARNING) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Power train/Engine/Data List/ISC Learning. Read the display on the Techstream. Result Tester Display Result Proceed to ISC Learning Incmpl A Compl B B --> See step 4 A: Go to next step
2. INITIALIZATION (ISC LEANING) Connect the auxiliary battery. Turn the Techstream to the DLC3. Enter inspection mode. Refer to «INSPECTION MODE PROCEDURE»(/toyota/prius-phv/pre-iii-2010-2011/remont/hoistjack/#introduction-phv) . Enter the following menus: Power train/Hybrid Control/Data List/Engine Coolant Temp. Turn the power switch on (READY) and warm up the engine coolant temp displayed in the Data List becomes 158°F (70°C) or more. Turn the power switch off and then on (READY) again. Check that the engine coolant temperature displayed in the Data List is 158°F (70°C) or more. With park (P) selected, lightly depress the accelerator pedal to start the engine. Wait until the engine stops. HINT: The engine normally stops within 1 minute. However, when the HV battery SOC is low, the engine may remain running for approximately 3 minutes. NEXT: Go to next step
3. READ VALUE USING TECHSTREAM (ISC LEARNING) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Power train/Engine/Data List/ISC Learning. Read the display on the Techstream. Result Tester Display Result Proceed to ISC Learning Incmpl A Compl B B --> END A --> See step 5
4. GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__problem-symptoms-table)
5. GO TO ENGINE CONTROL SYSTEM. Refer to «BASIC INSPECTION»(/toyota/prius-phv/pre-iii-2010-2011/remont/testing-diagnostics/#engine-control-sfi-system-diagnostics-introduction-phv__basic-inspection)

When selecting power mode, the switch operation signal is sent to the ECM. Following this, the drive torque is optimally controlled to obtain a sporty feel in response to the driver's acceleration operation.

Scheme 567

Scheme 568

Scheme 569

Scheme 570

1. READ VALUE USING TECHSTREAM (CAN BUS CHECK) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: System Select/CAN Bus Check. Result Result Proceed to All of the ECUs and sensors that are currently connected to the CAN communication system are displayed. A None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed. B Turn the power switch off. B --> See step 9 A: Go to next step
2. CHECK DTC OUTPUT (ALL) Connect the Techstream to the DLC3. Turn the power switch on (IG). Check for DTCs of all system by following the prompts on the Techstream screen. RESULT Result Proceed to No DTCs are output A DTCs are output B Turn the power switch off. B --> GO TO DTC CHART A: Go to next step
3. PERFORM ACTIVE TEST USING TECHSTREAM (INDICAT. LAMP ECT PWR) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Body Electrical/Combination Meter/Active Test/Indicat. Lamp ECT PWR. Perform the "Indicat. Lamp ECT PWR" Active Test. OK The PWR mode indicator lamp comes on (blink). Turn the power switch off. NG --> See step 10 OK: Go to next step
4. READ VALUE USING TECHSTREAM (PATTERN SWITCH (PWR/M)) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Data List/Pattern Switch (PWR/M). Read the value displayed on the Techstream. Tester Display Condition Normal Condition Pattern Switch (PWR/M) PWR MODE switch operated ON PWR MODE switch not operated OFF Result Result Proceed to The Techstream display changes according to the POWER switch operation. A The Techstream display does not changes according to the POWER switch operation. B Turn the power switch off. B --> See step 5 A --> See step 8
5. CHECK INTEGRATION CONTROL & PANEL SUB-ASSEMBLY (PWR MODE SWITCH) Remove the integration control & panel sub-assembly (PWR MODE switch). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L78-7 (PWR) - L78-5 (E) PWR MODE switch operated Below 1 ohms L78-7 (PWR) - L78-5 (E) PWR MODE switch not operated 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (Integration Control & Panel Sub-assembly) Install the integration control & panel sub-assembly. NG --> See step 11 OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL & PANEL SUB-ASSEMBLY - BODY GROUND) Disconnect connector L78 from the integration control & panel sub-assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L78-5 (E) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Integration Control & Panel Sub-assembly) Connect the integration control & panel sub-assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL & PANEL SUB-ASSEMBLY - ECM) Disconnect connector L78 from the integration control & panel sub-assembly. Disconnect connector A57 from the ECM. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L78-7 (PWR) - A57-46 (PWMS) Power switch off Below 1 ohms L78-7 (PWR) or A57-46 (PWMS) - Body ground Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Integration Control & Panel Sub-assembly) *b Front view of wire harness connector (to ECM) Connect the ECM connector. Connect the integration control & panel sub-assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems)
9. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/toyota/prius-phv/pre-iii-2010-2011/remont/communication-devices/#can-communication-system-diagnostics-introduction-phv__how-to-proceed-with-troubleshooting)
10. REPLACE COMBINATION METER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/gauges-instrument-panels/#meter-service-information-phv)
11. REPLACE INTEGRATION CONTROL & PANEL SUB-ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/exterior-lights/#lighting-exterior-service-information-phv)
12. REPLACE ECM. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#engine-control-system-service-information-phv)

When selecting ECO mode, the switch operation signal is sent to the air conditioning amplifier assembly. Following this, ECO mode control is activated for the heater and air conditioning system.

Scheme 571

Scheme 572

Scheme 573

Scheme 574

1. READ VALUE USING TECHSTREAM (CAN BUS CHECK) See step 1 B --> See step 9 A: Go to next step
2. CHECK DTC OUTPUT (ALL) See step 2 B --> GO TO DTC CHART A: Go to next step
3. PERFORM ACTIVE TEST USING TECHSTREAM (INDICAT. ECO MODE) Connect the Techstream to the DLC3. Turn the power switch on (READY). Enter the following menus: Body Electrical/Combination Meter/Active Test/Indicat. ECO MODE. Perform the "Indicat. ECO MODE" Active Test. OK The ECO MODE indicator lamp comes on (blink). Turn the power switch off. NG --> See step 10 OK: Go to next step
4. READ VALUE USING TECHSTREAM (ECO SWITCH) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Body Electrical/Air Conditioning/Data List/ECO Switch. Read the value displayed on the Techstream. Tester Display Condition Normal Condition ECO Switch ECO MODE switch operated ON ECO MODE switch not operated OFF Result Result Proceed to The Techstream display changes according to the ECO mode switch operation. A The Techstream display does not change according to the ECO mode switch operation. B Turn the power switch off. NG --> See step 5 OK --> See step 8
5. CHECK INTEGRATION CONTROL & PANEL SUB-ASSEMBLY (ECO MODE SWITCH) Remove the integration control & panel sub-assembly (ECO mode switch). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L78-2 (ECU) - L78-5 (E) ECO MODE switch operated Below 1 ohms L78-2 (ECU) - L78-5 (E) ECO MODE switch not operated 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (Integration Control & Panel Sub-assembly) Install the integration control & panel sub-assembly. NG --> See step 11 OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL & PANEL SUB-ASSEMBLY - BODY GROUND) Disconnect connector L78 from the integration control & panel sub-assembly (ECO mode switch). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L78-5 (E) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Integration Control & Panel Sub-assembly) Connect the integration control & panel sub-assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (ECO SWITCH - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect connector L78 from the integration control & panel sub-assembly (ECO switch). Disconnect connector L113 from the air conditioning amplifier assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L78-2 (ECU) - L113-15 (ECOS) Power switch off Below 1 ohms L78-2 (ECU) or L113-15 (ECOS) - Body ground Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Integration Control & Panel Sub-assembly) *b Rear view of wire harness connector (to Air Conditioning Amplifier Assembly) Connect the air conditioning amplifier assembly connector. Connect the integration control & panel sub-assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems)
9. GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(/toyota/prius-phv/pre-iii-2010-2011/remont/communication-devices/#can-communication-system-diagnostics-introduction-phv__how-to-proceed-with-troubleshooting)
10. REPLACE COMBINATION METER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/gauges-instrument-panels/#meter-service-information-phv)
11. REPLACE INTEGRATION CONTROL & PANEL SUB-ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/exterior-lights/#lighting-exterior-service-information-phv)
12. REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/automatic-hvac-system/#air-conditioning-service-information-phv)

The power management control ECU (HV CPU) illuminates the indicator assembly to show the plug-in charging status. When charging completes normally, the power management control ECU (HV CPU) turns off the indicator assembly. If an abnormality occurs during charging, the power management control ECU (HV CPU) blinks the indicator assembly.

Scheme 575

Scheme 576

Scheme 577

Scheme 578

1. CHECK DTC OUTPUT (ALL) Connect the Techstream to the DLC3. Turn the power switch on (IG). Check for DTCs of all system by following the prompts on the Techstream screen. Result Result Proceed to No DTCs are output. A DTCs are output. B Turn the power switch off. B --> GO TO DTC CHART A: Go to next step
2. READ VALUE USING TECHSTREAM (CHG INDICAT LIGHT STATUS) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Data List/Chg Indicat Light Status. Read the value displayed on the Techstream. Tester Display Measurement Item/Range Normal Condition Chg Indicat Light Status Charge indicator condition/ ON, OFF or Fast Blink ON: During plug-in charging OFF: Charge cable not connected or normal completion of plug-in charging Fast Blink: Abnormality during plug-in charging OK The indicator assembly operates in accordance with the Data List. Turn the power switch off. NG --> See step 3 OK --> See step 8
3. INSPECT INDICATOR ASSEMBLY Remove the indicator assembly. Inspect the indicator assembly. Standard Tester Connection Switch Condition Specified Condition I7-2 (ACT+) - I7-1 (E) When the auxiliary battery positive terminal and indicator assembly terminal ACT+, and the auxiliary battery negative terminal and terminal E are connected Illuminates I7-2 (ACT+) - I7-1 (E) When the auxiliary battery positive terminal and indicator assembly terminal ACT+, and the auxiliary battery negative terminal and terminal E are not connected Does not illuminate TEXT IN ILLUSTRATION *a Component without harness connected (Indicator Assembly) Install the indicator assembly. NG --> See step 6 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (INDICATOR ASSEMBLY - BODY GROUND) Disconnect the indicator assembly connector Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition I7-1 (E) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Indicator Assembly) Connect the indicator assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INDICATOR ASSEMBLY) Disconnect connector L116 from the power management control ECU. Disconnect the indicator assembly connector Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition L116-9 (PIL) - I7-2 (ACT+) Power switch off Below 1 ohms L116-9 (PIL) or I7-2 (ACT+) - Body ground Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Indicator Assembly) Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition L116-9 (PIL) or I7-2 (ACT+) - Body ground Power switch on (IG) Below 1 V Turn the power switch off. Connect the power management control ECU connector. Connect the indicator assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
6. REPLACE INDICATOR ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
7. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(/toyota/prius-phv/pre-iii-2010-2011/remont/engine-control-systems/#hybrid-battery-control-diagnostics-introduction-phv__check-for-intermittent-problems)

When the power management control ECU (HV CPU) receives the CPLT signal from the electric vehicle charger assembly, the power source control ECU closes the IGCT relay to enable the plug-in HV system. Also, the power management control ECU (HV CPU) judges the charge voltage status received from the electric vehicle charger cable assembly and prepares for charging.

Scheme 579

Scheme 580

Scheme 581

Scheme 582

1. CHECK DTC OUTPUT (ALL) Connect the Techstream to the DLC3. Turn the power switch on (IG). Check for DTCs of all system by following the prompts on the Techstream screen. Result Result Proceed to No DTCs are output. A DTCs are output. B Turn the power switch off. B --> GO TO DTC CHART A: Go to next step
2. REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (INSPECTION BY REPLACEMENT) Replace the electric vehicle charger cable assembly with a known good one. NEXT: Go to next step
3. CHECK INDICATOR ASSEMBLY Connect the electric vehicle charger cable assembly to an outlet (AC). Connect the charge connector of the electric vehicle charger cable assembly to the charge inlet of the vehicle. Check if the charge indicator light comes on. OK The charge indicator light comes on. NG --> See step 5 OK: Go to next step
4. READ VALUE USING TECHSTREAM (BAT NO. 1, NO. 2, NO. 3 STATE OF CHRGE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Data List/Bat No. 1 State of Charge, Bat No. 2 State of Charge, Bat No. 3 State of Charge. Read the Data List. OK The SOC of one of the Data List items increases. Turn the power switch off. NG --> See step 9 OK --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY
5. INSPECT INDICATOR ASSEMBLY See step 3 NG --> See step 13 OK: Go to next step
6. READ VALUE USING TECHSTREAM (CPLT OUTPUT VOLTAGE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Data List/CPLT Output Voltage. Read the Data List. OK Tester Display Condition Specified Condition CPLT Output Voltage Power switch on (IG) Charge cable not connected 12 V Power switch on (IG) Charge cable connected (during charging preparation) 9 V Power switch on (IG) Charge cable connected (when charging preparation completed) 6 V Turn the power switch off. NG --> See step 12 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (INDICATOR ASSEMBLY - BODY GROUND) See step 4 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INDICATOR ASSEMBLY) See step 5 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
9. READ VALUE USING TECHSTREAM (CPLT OUTPUT VOLTAGE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain/Hybrid Control/Data List/CPLT Output Voltage. Read the Data List. OK Tester Display Condition Specified Condition CPLT Output Voltage Power switch on (IG) Charge cable not connected 12 V Power switch on (IG) Charge cable connected (during charging preparation) 9 V Power switch on (IG) Charge cable connected (when charging preparation completed) 6 V Turn the power switch off. NG --> See step 12 OK: Go to next step
10. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - CHARGE INLET) Disconnect connector A22 from the power management control ECU. Open the lid of charge inlet. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A22-23(CPLT) - t1-4(CPLT) Power switch off Below 1 ohms A22-10(CPG) - t1-3(GND) or Body ground Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A22-23(CPLT) or t1-4(CPLT) - Body ground and other terminals Power switch off 10 kohms or higher A22-10(CPG) or t1-3(GND) - Other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (Charge Inlet) Close the lid of charge inlet. Connect the power management control ECU connector. NG --> See step 11 OK --> REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY
11. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - EV CHARGER CABLE) Disconnect connector A22 from the power management control ECU. Disconnect connector At1 from the electric vehicle charger cable. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A22-23(CPLT) - At1-1(CPLT) Power switch off Below 1 ohms A22-10(CPG) - At1-3(CPG) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A22-23(CPLT) or At1-1(CPLT) - Body ground and other terminals Power switch off 10 kohms or higher A22-10(CPG) or At1-3(CPG) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *a Rear view of wire harness connector (to Power Management Control ECU) *b Front view of wire harness connector (to Electric Vehicle Charger Cable) Connect the electric vehicle charger cable connector. Connect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 14
12. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#power-distribution-service-information-phv)
13. REPLACE INDICATOR ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)
14. REPLACE ELECTRIC VEHICLE CHARGER CABLE. Refer to «COMPONENTS»(/toyota/prius-phv/pre-iii-2010-2011/remont/body-electrical/#hybrid-battery-control-service-information-phv)

See also:
• DESCRIPTION
• PROCEDURE - Step 18
• DIAGNOSTIC TROUBLE CODE CHART
• COMPONENTS
• COMPONENTS
• CHECK FOR INTERMITTENT PROBLEMS
• PROCEDURE - Step 3
• WIRING DIAGRAM
• DIAGNOSTIC TROUBLE CODE CHART
• HOW TO PROCEED WITH TROUBLESHOOTING
• COMPONENTS
• COMPONENTS
• DIAGNOSTIC TROUBLE CODE CHART
• WIRING DIAGRAM
• INSPECTION MODE PROCEDURE
• PROBLEM SYMPTOMS TABLE
• BASIC INSPECTION
• COMPONENTS
• COMPONENTS
• COMPONENTS
• WIRING DIAGRAM