Engine Control System (Diagnostic Codes (P1451-U0293) & Circuit Tests) (Hybrid): Diagnosis Toyota Highlander II рестайлинг

DTC SUMMARY

INSPECTION PROCEDURE

Note. When a vehicle is brought into the workshop, leave it as it is. Do not change the vehicle condition. For example, do not tighten the fuel tank cap. Do not disassemble the canister pump module. The Techstream is required to conduct the following diagnostic troubleshooting procedure.

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1. CONFIRM DTC AND FUEL TANK PRESSURE Connect the Techstream to the DLC3. Turn the ignition switch ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Enter the following menus: Powertrain / Engine and ECT / Data List / Vapor Pressure Tank. Read the EVAP (evaporative emission) pressure displayed on the Techstream. Result Display (DTC Output) Result Suspected Trouble Area Proceed to P1451 - Pressure sensor C P1452 Less than -17.187 kPa (-128.93 mmHg) Wire harness/connector (ECM - pressure sensor) Pressure sensor Short in ECM circuit A P1453 More than 23.937 kPa (179.58 mmHg) Wire harness/connector (ECM - pressure sensor) Pressure sensor Open in ECM circuit B B --> See step 4 C --> See step 9 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (FUEL TANK PRESSURE SENSOR - ECM) Turn the ignition switch off. Disconnect the ECM connector. Measure the resistance between the PTNK terminal of the ECM connector and the body ground. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) Result Result Suspected Trouble Area Proceed to 10 ohms or less Wire harness/connector (ECM - pressure sensor) Short in pressure sensor circuit A 10 kohms or more Wire harness/connector (ECM - pressure sensor) Short in ECM circuit B Reconnect the ECM connector. B --> See step 7 A: Go to next step
3. CHECK HARNESS AND CONNECTOR (FUEL TANK PRESSURE SENSOR - ECM) Remove the fuel tank assembly. Disconnect the fuel tank pressure sensor connector. Disconnect the ECM connector. Measure the resistance between the PTNK terminal of the ECM connector and the body ground. TEXT IN ILLUSTRATION *1 Fuel Tank Pressure Sensor *a Front view of wire harness connector (to ECM) Result Result Suspected Trouble Area Proceed to 10 kohms or more Short in pressure sensor circuit A 10 ohms or less Short in wire harness/connector (ECM - pressure sensor) B Reconnect the pressure sensor connector. Reconnect the ECM connector. B --> See step 6 A: Go to next step
4. CHECK HARNESS AND CONNECTOR (FUEL TANK PRESSURE SENSOR - BODY GROUND) Remove the fuel tank assembly. Disconnect the fuel tank pressure sensor connector. Turn the ignition switch ON. Measure the voltage and resistance according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Tank Pressure Sensor) Standard Tester Connection Specified Condition k1-3 (VC) - Body ground 4.5 to 5.0 V k1-1 (E2) - Body ground 100 ohms or less Result Result Suspected Trouble Area Proceed to Voltage and resistance within standard ranges Open in pressure sensor circuit A Voltage and resistance outside standard ranges Open in wire harness/connector (ECM - pressure sensor) B Reconnect the fuel tank pressure sensor connector. B --> See step 6 A: Go to next step
5. REPLACE FUEL TANK PRESSURE SENSOR Replace the fuel tank pressure sensor, refer to «REMOVAL»(ref-426781-S40185034182011101200000) . NEXT --> See step 8
6. REPAIR OR REPLACE HARNESS OR CONNECTOR HINT: If the tailpipe has been removed, go to the next step before reinstalling it. NEXT --> See step 8
7. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> See step 8
8. CHECK WHETHER DTC OUTPUT RECURS (AFTER REPAIR) Connect the Techstream to the DLC3. Turn the ignition switch ON and turn the Techstream on. Wait for at least 60 seconds. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. HINT: If no pending DTC is displayed on the Techstream, the repair has been successfully completed. NEXT --> END
9. GO TO EVAP SYSTEM. Refer to «EVAP System»(ref-426777-S34215481402011101200000)

HINT

1. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
2. The throttle actuator current (Throttle Motor Current) and the throttle actuator duty ratio (Throttle Motor Duty (Open) / Throttle Motor Duty (Close) can be read using the Techstream. However, the ECM shuts off the throttle actuator current when the electronic throttle control system malfunctions.

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1. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Disconnect the throttle with motor body assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2 (M+) - 1 (M-) 20°C (68°F) 0.3 to 100 ohms TEXT IN ILLUSTRATION *a Component without harness connected (Throttle with Motor Body Assembly) Reconnect the throttle with motor body assembly connector. NG --> See step 5 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM) Disconnect the throttle with motor body assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B27-2 (M+) - B57-28 (M+) Always Below 1 ohms B27-1 (M-) - B57-29 (M-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B27-2 (M+) or B57-28 (M+) - Body ground Always 10 kohms or higher B27-1 (M-) or B57-29 (M-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Throttle with Motor Body Assembly) *b Front view of wire harness connector (to ECM) Reconnect the ECM connector. Reconnect the throttle with motor body assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE WITH MOTOR BODY ASSEMBLY - ECM) OK: Go to next step
3. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for foreign objects between the throttle valve and the housing. OK No foreign objects between throttle valve and housing. NG --> REMOVE FOREIGN OBJECT AND CLEAN THROTTLE WITH MOTOR BODY ASSEMBLY OK: Go to next step
4. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (THROTTLE VALVE) Check if the throttle valve opens and closes smoothly. OK Throttle valve opens and closes smoothly. NG --> See step 5 OK --> See step 6
5. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY. Refer to «REMOVAL»(ref-426780-S24526827482011101200000)
6. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)

HINT

1. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
2. Refer to "Data List / Active Test" [Throttle Position Command, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open), Throttle Motor Duty (Close)], refer to «DATA LIST / ACTIVE TEST»(ref-426655-S42617637412011101200000) .

Note. Inspect the fuses for circuit related to this system before performing the following inspection procedure.

HINT

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Scheme 820

1. READ VALUE USING TECHSTREAM (+BM VOLTAGE) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / +BM voltage. Read the value displayed on the Techstream. Standard Voltage 11 to 14 V NG --> See step 2 OK --> See step 3
2. CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) Disconnect the ECM connectors. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition B57-30 (+BM) - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B57-60 (ME01) - Body ground Always Below 1 ohms B57-46 (E1) - Body ground Always Below 1 ohms Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BATTERY, BODY GROUND) OK --> See step 4
3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-426655-S18110562592011101200000)
4. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)

HINT

1. Refer to "Data List / Active Test" [Throttle Position Commanded, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open) and Throttle Motor Duty (Close)], refer to «DATA LIST / ACTIVE TEST»(ref-426655-S42617637412011101200000) .
2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor function provided in the Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the air fuel ratio sensor, heated oxygen sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using the Techstream.

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON.
3. Turn the Techstream on.
4. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
5. Start the engine.
6. Warm up the engine at an engine speed of 2500 RPM for approximately 90 seconds.
7. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor.
8. Perform the Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume).
9. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

1. The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25%.

1. Each sensor reacts in accordance with increases in the fuel injection volume.

Note. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich)

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1. Following the Control the Injection Volume for A/F Sensor procedure enables technicians to check and graph the voltage outputs of both the air fuel ratio and heated oxygen sensors.
2. To display the graph, enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / A/F Control System / AFS Voltage B1S1 or AFS Voltage B2S1 and O2S B1S2 or O2S B2S2.

HINT

1. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
2. A low air fuel ratio sensor voltage could be caused by a rich air fuel mixture. Check for conditions that would cause the engine to run rich.
3. A high air fuel ratio sensor voltage could be caused by a lean air fuel mixture. Check for conditions that would cause the engine to run lean.
4. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
5. Bank 2 refers to the bank that does not include the No. 1 cylinder.
6. Sensor 1 refers to the sensor closest to the engine assembly.
7. Sensor 2 refers to the sensor farthest away from the engine assembly.

HINT

1. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
2. Refer to "Data List / Active Test" [A/F Sensor Determination (worst value) #1, Engine Speed Fluctuation Avg (worst value) #1 to #6, Cylinder #1 to #6 Misfire Count, Short FT #1, Short FT #2, Long FT #1 and Long FT #2], refer to «DATA LIST / ACTIVE TEST»(ref-426655-S42617637412011101200000) .

HINT

Malfunctioning areas can be identified by performing the Control the Injection Volume for A/F Sensor in the Active Test. The Control the Injection Volume for A/F Sensor function can help to determine whether the air fuel ratio sensor, heated oxygen sensor and other potential trouble areas are malfunctioning.

The following instructions describe how to conduct the Control the Injection Volume for A/F Sensor operation using the Techstream.

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) .
5. Start the engine.
6. Warm up the engine at 2500 RPM for approximately 90 seconds.
7. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor.
8. Perform Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume).
9. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream.

HINT

1. The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the injection volume by 25%.

1. Each sensor reacts in accordance with increases and decreases in the fuel injection volume.

Note. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.

Case Air Fuel Ratio Sensor (Sensor 1) Output Voltage Heated Oxygen Sensor (Sensor 2) Output Voltage Main Suspected Trouble Area 1 - 2 Air fuel ratio sensor Air fuel ratio sensor heater Air fuel ratio sensor circuit 3 Heated oxygen sensor Heated oxygen sensor heater Heated oxygen sensor circuit Exhaust gas leaks 4 Fuel pressure Exhaust gas leaks (Air fuel ratio extremely lean or rich)

1. Performing Control the Injection Volume for A/F Sensor enables technicians to check and graph the output voltages of both the air fuel ratio and heated oxygen sensors.
2. To display the graph, enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor / AFS Voltage B1S1 and O2S B2S1 or AFS Voltage B1S2 and O2S B2S2.

HINT

1. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
2. Bank 1 refers to the bank that includes the No. 1 cylinder*. *: The No. 1 cylinder is the cylinder which is farthest from the transmission.
3. Bank 2 refers to the bank that does not include the No. 1 cylinder.
4. Sensor 1 refers to the sensor closest to the engine assembly.
5. Sensor 2 refers to the sensor farthest away from the engine assembly.

Scheme 824

1. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B72-1 (HA1A) - B57-24 (HA1A) Always Below 1 ohms B72-3 (A1A+) - B57-100 (A1A+) Always Below 1 ohms B72-4 (A1A-) - B57-132 (A1A-) Always Below 1 ohms B71-1 (HA2A) - B57-22 (HA2A) Always Below 1 ohms B71-3 (A2A+) - B57-99 (A2A+) Always Below 1 ohms B71-4 (A2A-) - B57-131 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B72-1 (HA1A) or B57-24 (HA1A) - Body ground Always 10 kohms or higher B72-3 (A1A+) or B57-100 (A1A+) - Body ground Always 10 kohms or higher B72-4 (A1A-) or B57-132 (A1A-) - Body ground Always 10 kohms or higher B71-1 (HA2A) or B57-22 (HA2A) - Body ground Always 10 kohms or higher B71-3 (A2A+) or B57-99 (A2A+) - Body ground Always 10 kohms or higher B71-4 (A2A-) or B57-131 (A2A-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Bank 1 *2 Bank 2 *a Front view of wire harness connector (to Air Fuel Ratio Sensor) *b Front view of wire harness connector (to ECM) Reconnect the air fuel ratio sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
2. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor, refer to «REMOVAL»(ref-426780-S22078568692011101200000) . NEXT: Go to next step
3. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. Put the engine in inspection mode, refer to «INSPECTION MODE PROCEDURE»(ref-426649-S00975887492011101200000) . Start the engine and warm it up. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256 is output) B B --> See step 4 A --> END
4. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)

HINT

The vent valve is built into the canister pump module.

Refer to the EVAP System, refer to INSPECTION PROCEDURE .

Refer to the EVAP System, refer to INSPECTION PROCEDURE .

HINT

1. DTC P2610 is set if an internal ECM problem is detected. Diagnostic procedures are not required. ECM replacement is required.
2. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

HINT

1. Repeating this inspection for symptom confirmation may cause the SOC to drop, preventing the system from entering the READY-on state. In this case, use the THS charger to charge the HV battery.
2. Cranking the engine once causes the SOC to drop approximately 1%.
3. Charging the HV battery once (10 minutes) using the THS charger restores the SOC approximately 2%.
4. Charging the HV battery using the THS charger takes approximately 10 minutes when the battery temperature is 25°C or approximately 30 minutes when the battery temperature is 0°C.
5. The THS charger is a supplemental charging device that charges the HV battery enough to enable the engine to start (the vehicle can enter the READY-on state).
6. Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

Refer to the CAN Communication System, refer to HOW TO PROCEED WITH TROUBLESHOOTING .

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

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1. CONFIRM DTC Turn the ignition switch off and wait 10 seconds. Turn the ignition switch to ON. Turn the ignition switch off and wait 10 seconds. Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Confirm the DTCs and freeze frame data. EVAP RELATED DTCS DTC No. Monitoring Item P043E Reference orifice low flow P043F Reference orifice high flow P0441 Purge VSV stuck closed Purge VSV stuck open Insufficient purge flow P1420 Small leak from canister P1421 Gross leak from canister P1422 Small leak from fuel tank P1423 Gross leak from fuel tank P2401 Vacuum pump stuck OFF P2402 Vacuum pump stuck ON P2419 Vent valve stuck ON (closed) P2420 Vent valve stuck OFF (vent) P2450 Fuel vapor-containment valve stuck open P2451 Fuel vapor-containment valve stuck closed DTC AND MALFUNCTION CROSS-REFERENCE Malfunction Output DTC Reference orifice low flow P043E, P043F, P2401, P2402, P2419 Reference orifice high flow P043E, P043F, P2401, P2402, P2419 Vacuum pump stuck OFF P043E, P043F, P2401, P2402, P2419 Vacuum pump stuck ON P043E, P043F, P2401, P2402, P2419 Vent valve stuck ON (closed) P043E, P043F, P2401, P2402, P2419 Vent valve stuck OFF (vent) P2420 Insufficient purge flow P0441 Purge VSV stuck open P0441, P1421 Purge VSV stuck closed P0441 Small leak from canister P1420 Gross leak from canister P0441, P1421 Small leak from fuel tank P1422 Gross leak from fuel tank P1423 Fuel vapor-containment valve stuck open P1423, P2450 Fuel vapor-containment valve stuck closed P2451 NEXT: Go to next step
2. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) NOTE: In the Evaporative System Check (Automatic Mode), a series of 9 Evaporative System Check steps are performed automatically. A maximum of 15 minutes is required. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed and the leak check of the fuel tank is impossible. Do not run the engine. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the temperature below 35°C (95°F). Clear the DTCs with the Techstream. Remove the fuel tank cap and reinstall the fuel cap. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode. After the Evaporative System Check is completed, check for pending DTCs. Result DTC Conclusion Proceed to A pending DTC is set A malfunction occurs and troubleshooting can be performed A A pending DTC is not set No malfunctions occur and it is difficult to perform troubleshooting B A pending DTC is not set and any of the current DTCs (P1422, P1423, or P2450) is set DTCs can be set because the fuel cap is not tightened firmly C B --> See step 34 C --> END A: Go to next step
3. IDENTIFY TROUBLE AREAS USING DTC Refer to the table below to determine the next procedure according to the output DTCs. Result Malfunction Output DTC Proceed to Reference orifice low flow P043E, P043F, P2401, P2402 and P2419 B Reference orifice high flow P043E, P043F, P2401, P2402 and P2419 B Vacuum pump stuck off P043E, P043F, P2401, P2402 and P2419 B Vacuum pump stuck on P043E, P043F, P2401, P2402 and P2419 B Vent valve stuck on (closed) P043E, P043F, P2401, P2402 and P2419 B Vent valve stuck off (vent) P2420 C Insufficient purge flow P0441 A Purge VSV stuck open P0441 and P1421 A Purge VSV stuck closed P0441 A Small leak from canister P1420 D Gross leak from canister P0441 and P1421 A Small leak from fuel tank P1422 A Gross leak from fuel tank P1423 A Fuel vapor-containment valve stuck open P1423 and P2450 A Fuel vapor-containment valve stuck closed P2451 A B --> See step 11 C --> See step 15 D --> See step 6 A: Go to next step
4. IDENTIFY TROUBLE AREAS USING DTC Refer to the table below to determine the next procedure according to the output DTCs. Result Malfunction Output DTC Proceed to Insufficient purge flow P0441 A Purge VSV stuck open P0441, P1421 B Purge VSV stuck closed P0441 A Gross leak from canister P0441, P1421 B Small leak from fuel tank P1422 C Gross leak from fuel tank P1423 C Fuel vapor-containment valve stuck open P1423, P2450 C Fuel vapor-containment valve stuck closed P2451 D B --> See step 15 C --> See step 21 D --> See step 23 A: Go to next step
5. CHECK VACUUM HOSE (PURGE VSV - THROTTLE WITH MOTOR BODY ASSEMBLY) Disconnect the hose (to the intake air connector) from the purge VSV. Start the engine. Use your finger and confirm that the purge VSV has suction. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Intake Air Connector) Result Result Proceed to There is suction. Conclusion: EVAP hose between purge VSV and throttle with motor body assembly is normal. OK There is no suction. Conclusion: Problem in throttle with motor body assembly or hose between purge VSV and throttle with motor body assembly NG Reconnect the hose. NG --> See step 33 OK: Go to next step
6. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) Enter the following menus: Powertrain / Engine and ECT / Active Test / Active the VSV for EVAP Control. Disconnect the hose (connected to the canister) from the purge VSV. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (from canister) Start the engine. Using the Techstream, turn off the purge VSV (Activate the VSV for Evap Control: OFF). Use your finger to confirm that the purge VSV has no suction. Using the Techstream, turn on the purge VSV (Activate the VSV for Evap Control: ON). Use your finger to confirm that the purge VSV has suction. Result Result Proceed to Malfunction A Normal B Reconnect the hose. B --> See step 19 A: Go to next step
7. CHECK PURGE VSV Remove the purge VSV. Apply compressed air to the purge VSV, and confirm that no air flows from A to B as shown in the illustration. Apply battery voltage to the purge VSV. While applying compressed air, confirm that air flows from A to B as shown in the illustration. TEXT IN ILLUSTRATION *1 Purge VSV Result Result Proceed to Air flows from A to B only when battery voltage applied to purge VSV. Conclusion: purge VSV is normal. OK No air flows from A to B when battery voltage is applied to purge VSV. Conclusion: purge VSV is malfunctioning. NG Air flows from A to B when battery voltage is not applied to purge VSV. Conclusion: purge VSV is malfunctioning. NG Reinstall the purge VSV. NG --> See step 27 OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (PURGE VSV - EFI NO. 2 FUSE) Disconnect the purge VSV connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) Result Tester Connection Switch Condition Specified Condition Suspected Trouble Area Proceed to B29-1 - Body ground Ignition switch ON 11 to 14 V Normal OK Other than result above Wire harness or connectors between purge VSV and ECM NG Reconnect the connector. NG --> See step 32 OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the ECM connector and the purge VSV connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B57-140 (PRG) - B29-2 Always 10 ohms or less B57-140 (PRG) or B29-2 - Body ground Always 10 kohms or more TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) *b Front view of wire harness connector (to ECM) Reconnect the connectors. NG --> See step 32 OK: Go to next step
10. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
11. CHECK CANISTER PUMP MODULE (VACUUM PUMP POWER SOURCE CIRCUIT) Turn the ignition switch off. Remove the canister lower cover. Disconnect the canister pump module connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump. Turn the vacuum pump on using the Techstream. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - Standard Voltage Tester Connection Condition Specified Condition O42-1 (MTRB) - O42-6 (MGND) Vacuum pump on using the Techstream 10 to 14 V Result Voltage Proceed to Out of standard range A Within standard range B Reconnect the connector. Reinstall the canister lower cover. B --> See step 15 A: Go to next step
12. CHECK HARNESS AND CONNECTOR (VACUUM PUMP - BODY GROUND) Disconnect the canister pump module connector. Turn the ignition switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O42-6 (MGND) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) Reconnect the connector. NG --> See step 32 OK: Go to next step
13. CHECK HARNESS AND CONNECTOR (VACUUM PUMP - ECM) Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A67-31 (MPMP) - O42-1 (MTRB) Always 10 ohms or less A67-31 (MPMP) or O42-1 (MTRB) - Body ground Always 10 kohms or more TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) *b Front view of wire harness connector (to ECM) Connect the ECM connector. NG --> See step 32 OK: Go to next step
14. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
15. CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT) Turn the ignition switch off. Remove the canister lower cover. Disconnect the canister pump module connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump. Turn the vacuum pump on using the Techstream. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - Standard Voltage Tester Connection Condition Specified Condition O42-8 (VGND) - O42-9 (VLVB) Vacuum pump on using the Techstream 10 to 14 V Result Voltage Proceed to Within standard range A Out of standard range B Reconnect the connector. Reinstall the canister lower cover. B --> See step 17 A: Go to next step
16. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Turn the ignition switch off. Remove the canister lower cover. Disconnect the canister pump module connector. Apply battery voltage to VLVB and VGND terminals of the canister pump module. Touch the canister pump module to confirm the vent valve operation. TEXT IN ILLUSTRATION *a Component without harness connected (Canister) Result Test Result Suspected Trouble Area Proceed to Operating Wire harness between vent valve and ECM ECM A Not operating Vent valve B Reconnect the connector. Reinstall the canister lower cover. B --> See step 28 A: Go to next step
17. CHECK HARNESS AND CONNECTOR (VENT VALVE - ECM) Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A67-30 (VPMP) - O42-8 (VGND) Always 10 ohms or less A67-30 (VPMP) or O42-8 (VGND) Always 10 kohms or more TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) *b Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> See step 32 OK: Go to next step
18. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
19. CHECK HOSES (PURGE VSV - CANISTER) Remove the canister lower cover. Connect the pressure gauge to the canister pump module with the adapter. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Vapor-Containment Valve. Turn the fuel vapor-containment valve ON using the Techstream. Pressurize the EVAP system to between 3.2 and 3.7 kPa-g (24 and 28 mmHg-g). NOTE: More than 4.7 kPa-g (35 mmHg-g) of pressure will damage the EVAP system. Pay attention to the pressure. Apply soapy water to the piping and connections of the EVAP system. Look for the area where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. Disconnect the hose between the canister and fuel tank from the canister. Close the canister on the area where the hose was connected and perform an inspection. The fuel tank and fuel vapor containment valve can be eliminated from the suspected areas for leak checks. Reinstall the canister lower cover. NEXT: Go to next step
20. REPLACE MALFUNCTIONING PART NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
21. CHECK FUEL TANK CAP ASSEMBLY Check if the fuel cap is tightened until a few "click" sounds are heard. If you have the EVAP tester, check the fuel cap using the fuel cap adaptor. Install the fuel cap to the fuel cap adaptor, and connect the hose from the EVAP tester's pump. Pressurize the fuel cap adaptor to between 3.2 and 3.7 kPa-g (24 and 28 mmHg-g) or for 45 seconds. Stop the pump and seal the fuel cap adaptor. Wait 2 minutes. Confirm that the pressure is higher than 2.0 kPa-g (15 mmHg-g). OK Higher than 2.0 kPa-g (15 mmHg-g) NG --> See step 31 OK: Go to next step
22. CHECK HOSES (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK) Remove the canister lower cover. Connect the pressure gauge to the canister pump module with the adapter. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Vapor-Containment Valve. Turn the fuel vapor-containment valve ON using the Techstream. Pressurize the EVAP system to between 3.2 and 3.7 kPa (24 and 28 mmHg). NOTE: More than 4.7 kPa (35 mmHg) of pressure will damage the EVAP system. Pay attention to the pressure. Apply soapy water to the piping and connections of the EVAP system. Look for the area where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. Reinstall the canister lower cover. NEXT: Go to next step
23. CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT) Turn the ignition switch off. Disconnect the Ok1 connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Vapor-Containment Valve. Turn the fuel vapor-containment valve ON using the Techstream. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition Ok1-3 - Ok1-7 Fuel vapor-containment valve ON 10 to 14 V Result Voltage Proceed to Out of standard range A Within standard range B TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Floor Wire) Reconnect the connector. B --> See step 29 A: Go to next step
24. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE POWER SOURCE) Disconnect the Ok1 connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition Ok1-3 - Body ground Ignition switch ON 10 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Floor Connector) Reconnect the connector. NG --> See step 32 OK: Go to next step
25. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS) Remove the fuel tank assembly, refer to «REMOVAL»(ref-426781-S26097372902011101200000) . Disconnect the Ok1 connector. Disconnect the fuel vapor-containment valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Ok1-3 - k3-1 Always Below 1 ohms Ok1-7 - k3-2 Always Below 1 ohms Reinstall the fuel tank assembly, refer to «INSTALLATION»(ref-426781-S06548723012011101200000) . TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Vapor-containment valve) *b Front view of wire harness connector (to Floor Wire) Reconnect the connectors. Reinstall the fuel tank assembly NG --> See step 32 OK: Go to next step
26. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
27. REPLACE PURGE VSV Replace the purge VSV, refer to «REMOVAL - Step 3»(ref-426771-S28857944242011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
28. REPLACE CANISTER Replace the canister, refer to «REMOVAL»(ref-426771-S12975672052011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
29. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS) Remove the fuel tank assembly, refer to «REMOVAL»(ref-426781-S26097372902011101200000) . Disconnect the Ok1 connector. Disconnect the fuel vapor-containment valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Ok1-3 - k3-1 Always Below 1 ohms Ok1-7 - k3-2 Always Below 1 ohms Reinstall the fuel tank assembly, refer to «INSTALLATION»(ref-426781-S06548723012011101200000) . TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Vapor-containment valve) *b Front view of wire harness connector (to Floor Wire) Reconnect the connectors. Reinstall the fuel tank assembly NG --> See step 32 OK: Go to next step
30. REPLACE FUEL VAPOR-CONTAINMENT VALVE Replace the fuel vapor-containment valve, refer to «REMOVAL»(ref-426771-S04369826392011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
31. REPLACE FUEL TANK CAP ASSEMBLY NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
32. REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
33. REPAIR OR REPLACE VACUUM HOSE (PURGE VSV - THROTTLE WITH MOTOR BODY ASSEMBLY) NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
34. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE) HINT: In the manual operation check, the EVAP system can be checked in several steps. Valve operation and pressure in each step can also be checked. Clear the DTCs, refer to «DTC CHECK / CLEAR»(ref-426655-S13741789592011101200000) . Remove the fuel tank cap and reinstall the fuel tank cap. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode. NOTE: In the Evaporative System Check (Manual Mode), the series of 9 Evaporative System Check steps is performed automatically. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the leak check of the fuel tank impossible. Do not run the engine in this step. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature below 35°C (95°F). TESTER DISPLAY Display Detail Atmosphere Press Check The number of steps and step names are displayed Purge VSV Purge VSV condition is displayed: ON (Open)/OFF (Closed) Vent Valve Vent valve condition is displayed: ON (Closed)/OFF (Vent) Vacuum Pump Vacuum pump condition is displayed: ON/OFF Fuel VCV Fuel vapor-containment valve condition is displayed: ON (Open)/OFF (Closed) Tank Pressure Fuel tank pressure (Absolute pressure) Vapor Pressure (Gauge) EVAP pressure (Gauge pressure measured at canister pump module) Vapor Pressure (Absolute) EVAP pressure (Absolute pressure measured at canister pump module) Time (Step) Elapsed time for each step Time (VENT) Accumulated purge VSV open time Time (PUMP) Accumulated vacuum pump operating time MANUAL OPERATION STEP Step Operations 1. Atmosphere Pressure Check Atmospheric pressure measurement 2. Reference Pressure (0.02 inch) Check 1 First reference leak pressure measurement 3. Canister Leak Check EVAP system pressure measurement 4. Purge VSV Check Purge VSV monitor 5. Reference Pressure (0.02 inch) Check 2 Second reference leak pressure measurement 6. Resetting Resetting 7. Tank Leak Check Fuel tank pressure measurement 8. Reference Pressure (0.02 inch) Check 3 Third reference leak pressure measurement 9. Atmosphere Pressure Check Atmospheric pressure measurement NEXT: Go to next step
35. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 1) Select step 1 and wait 10 seconds. NEXT: Go to next step
36. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 2) Perform step 2. Check the evaporative pressure 2 seconds after the vacuum pump is activated*. (step b) *: The vacuum pump begins to operate at the start of step 2. Check the evaporative (EVAP) pressure again when it has stabilized. This pressure is the first reference pressure standard. Result Test Result Suspected Trouble Area Proceed to EVAP pressure in step (b) is between 723.19 mmHg-a and 751.6 mmHg-a Not yet determined A EVAP pressure in step (b) is 751.6 mmHg-a or more Reference orifice high-flow Vacuum pump stuck off B EVAP pressure in step (b) is below 723.19 mmHg-a Reference orifice clogged C B --> See step 50 C --> See step 65 A: Go to next step
37. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 3) Perform step 3. Check the evaporative (EVAP) pressure change in step 3. (step b) Result Test Result Suspected Trouble Area Proceed to EVAP pressure change in step (b) is 2.2 mmHg or more Not yet determined A EVAP pressure change in step (b) is less than 2.2 mmHg Vent valve (switching valve) stuck off B Check the fuel tank pressure change in step 3. Result Test Results Suspected Trouble Areas Proceed to Fuel tank pressure change in step (b) is less than 3.75 mmHg Not yet determined A Fuel tank pressure change in step (b) is more than 3.75 mmHg Fuel vapor-containment valve stuck on (open) C Check the evaporative pressure again when it has stabilized. This pressure is the canister leak pressure standard. Compare the first reference pressure with the canister leak pressure. Result Test Result Suspected Trouble Area Proceed to Lower than first reference pressure Not yet determined A First reference pressure or higher Purge VSV stuck open Leakage from line between purge VSV and canister D B --> See step 54 C --> See step 60 D --> See step 58 A: Go to next step
38. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 4) Perform step 4. Check the evaporative (EVAP) pressure change in step 4. (step b) Result Test Result Suspected Trouble Area Proceed to EVAP pressure in step (b) changes to 762 mmHg-a or more Not yet determined A EVAP pressure in step (b) remains below 762 mmHg-a Purge VSV stuck closed B B --> See step 44 A: Go to next step
39. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 5) Perform step 5 and wait 60 seconds. Check the evaporative (EVAP) pressure. This pressure is the second reference pressure standard. NEXT: Go to next step
40. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 6) Perform step 6 and wait 5 seconds. NEXT: Go to next step
41. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 7) Perform step 7. Check that the tank pressure and EVAP pressure change. Check the tank pressure again when it has stabilized. This pressure is the fuel tank leak pressure standard. Result Test Result Suspected Trouble Area Proceed to Tank pressure change is more than 3.75 mmHg and EVAP pressure is more than 6.76 mmHg Not yet determined A Tank pressure change is less than 3.75 mmHg and EVAP pressure is less than 6.76 mmHg Fuel vapor-containment valve stuck OFF (closed) B B --> See step 60 A: Go to next step
42. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 8) Perform step 8 and wait 60 seconds. Check the evaporative (EVAP) pressure. This pressure is the third reference pressure standard. Compare the tank pressure checked in step 41 with the third reference pressure. Result Test Result Suspected Trouble Area Proceed to Lower than third reference pressure Not yet determined A Third reference pressure or higher Leakage from line between fuel vapor-containment valve and fuel tank B B --> See step 21 A: Go to next step
43. PERFORM CONFIRMATION DRIVING PATTERN KEY-OFF MONITOR DRIVE PATTERN Connect the Techstream to the DLC3. Confirm the following conditions are satisfied: The fuel level is less than 90%. The altitude is less than 7874 ft. (2400 m). The vehicle is stopped (the vehicle speed is less than 2 mph). The engine coolant temperature is 4.4 to 35°C (40 to 95°F) The intake air temperature is 4.4 to 35°C (40 to 95°F) Perform the following drive pattern: Allow the engine to idle for 5 minutes or more. Turn the ignition switch off and wait 6 hours. Check the monitor status with the Techstream. PURGE FLOW MONITOR DRIVE PATTERN (P0441) Connect the Techstream to the DLC3. Confirm that the following conditions are satisfied: The engine coolant temperature is more than 4.4°C (40°F). The intake air temperature is more than 4.4°C (40°F). Perform the following drive pattern: Remove and reinstall the fuel cap to release the fuel tank pressure. Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or more. Run the engine at 3000 RPM once. Check the monitor status with the Techstream. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
44. CHECK VACUUM HOSE (PURGE VSV - THROTTLE WITH MOTOR BODY ASSEMBLY) Disconnect the hose (to the intake air connector) from the purge VSV. Start the engine. Use your finger and confirm that the purge VSV has suction. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Intake Air Connector) Result Result Proceed to There is suction. Conclusion: EVAP hose between purge VSV and throttle with motor body assembly is normal. OK There is no suction. Conclusion: Problem in throttle with motor body assembly or hose between purge VSV and throttle with motor body assembly NG Reconnect the hose. NG --> See step 69 OK: Go to next step
45. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) Enter the following menus: Powertrain / Engine and ECT / Active Test / Active the VSV for EVAP Control. Disconnect the hose (connected to the canister) from the purge VSV. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to canister) Start the engine. Using the Techstream, turn off the purge VSV (Activate the VSV for Evap Control: OFF). Use your finger to confirm that the purge VSV has no suction. Using the Techstream, turn on the purge VSV (Activate the VSV for Evap Control: ON). Use your finger to confirm that the purge VSV has suction. Result Result Proceed to Malfunction A Normal B Reconnect the hose. B --> See step 58 A: Go to next step
46. CHECK PURGE VSV Remove the purge VSV. Apply compressed air to the purge VSV, and confirm that no air flows from A to B as shown in the illustration. Apply battery voltage to the purge VSV. While applying compressed air, confirm that air flows from A to B as shown in the illustration. TEXT IN ILLUSTRATION *1 Purge VSV Result Result Proceed to Air flows from A to B. Conclusion: purge VSV is normal. OK No air flows from A to B. Conclusion: purge VSV is malfunctioning. NG Reinstall the purge VSV. NG --> See step 64 OK: Go to next step
47. CHECK HARNESS AND CONNECTOR (PURGE VSV - EFI NO. 2 FUSE) Disconnect the purge VSV connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) Result Tester Connection Switch Condition Specified Condition Suspected Trouble Area Proceed to B29-1 - Body ground Ignition switch ON 11 to 14 V Normal OK Other than result above Wire harness or connectors between purge VSV and ECM NG Reconnect the connector. NG --> See step 68 OK: Go to next step
48. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the ECM connector and the purge VSV connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B57-140 (PRG) - B29-2 Always 10 ohms or less B57-140 (PRG) or B29-2 - Body ground Always 10 kohms or more TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) *b Front view of wire harness connector (to ECM) Reconnect the connectors. NG --> See step 68 OK: Go to next step
49. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
50. CHECK CANISTER PUMP MODULE (VACUUM PUMP POWER SOURCE CIRCUIT) Turn the ignition switch off. Remove the canister lower cover. Disconnect the canister pump module connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump. Turn the vacuum pump on using the Techstream. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - Standard Voltage Tester Connection Condition Specified Condition O42-1 (MTRB) - O42-6 (MGND) Vacuum pump on using the Techstream 10 to 14 V Result Voltage Proceed to Out of standard range A Within standard range B Reconnect the connector. Reinstall the canister lower cover. B --> See step 54 A: Go to next step
51. CHECK HARNESS AND CONNECTOR (VACUUM PUMP - BODY GROUND) Disconnect the canister pump module connector. Turn the ignition switch off. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O42-6 (MGND) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) Reconnect the connector. NG --> See step 68 OK: Go to next step
52. CHECK HARNESS AND CONNECTOR (VACUUM PUMP - ECM) Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A67-31 (MPMP) - O42-1 (MTRB) Always 10 ohms or less A67-31 (MPMP) or O42-1 (MTRB) - Body ground Always 10 kohms or more TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) *b Front view of wire harness connector (to ECM) Connect the ECM connector. NG --> See step 68 OK: Go to next step
53. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
54. CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT) Turn the ignition switch off. Remove the canister lower cover. Disconnect the canister pump module connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump. Turn the vacuum pump on using the Techstream. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - Standard Voltage Tester Connection Condition Specified Condition O42-8 (VGND) - O42-9 (VLVB) Vacuum pump on using the Techstream 10 to 14 V Result Voltage Proceed to Within standard range A Out of standard range B Reconnect the connector. Reinstall the canister lower cover. B --> See step 56 A: Go to next step
55. CHECK HARNESS AND CONNECTOR (VENT VALVE - BODY GROUND) Turn the ignition switch off. Remove the canister lower cover. Disconnect the canister pump module connector. Apply battery voltage to VLVB and VGND terminals of the canister pump module. Touch the canister pump module to confirm the vent valve operation. TEXT IN ILLUSTRATION *a Component without harness connected (Canister) Result Test Result Suspected Trouble Area Proceed to Operating Wire harness between vent valve and ECM ECM A Not operating Vent valve B Reconnect the connector. Reinstall the canister lower cover. B --> See step 65 A: Go to next step
56. CHECK HARNESS AND CONNECTOR (VENT VALVE - ECM) Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A67-30 (VPMP) - O42-8 (VGND) Always 10 ohms or less A67-30 (VPMP) or O42-8 (VGND) Always 10 kohms or more TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) *b Front view of wire harness connector (to ECM) Connect the ECM connector. NG --> See step 68 OK: Go to next step
57. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
58. CHECK HOSES (PURGE VSV - CANISTER) Remove the canister lower cover. Connect the pressure gauge to the canister pump module with the adapter. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Pressurize the EVAP system to between 3.2 and 3.7 kPa-g (24 and 28 mmHg-g). NOTE: More than 4.7 kPa-g (35 mmHg-g) of pressure will damage the EVAP system. Pay attention to the pressure. Apply soapy water to the piping and connections of the EVAP system. Look for the area where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. Disconnect the hose between the canister and fuel tank from the canister. Close the canister on the area where the hose was connected and perform an inspection. The fuel tank can be eliminated from the suspected areas for leak checks. Reinstall the canister lower cover. NEXT: Go to next step
59. REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
60. CHECK FUEL VAPOR-CONTAINMENT VALVE ASSEMBLY (POWER SOURCE CIRCUIT) Turn the ignition switch off. Disconnect the Ok1 connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Vapor-Containment Valve. Turn the fuel vapor-containment valve ON using the Techstream. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition Ok1-3 - Ok1-7 Fuel vapor-containment valve ON 10 to 14 V Result Voltage Proceed to Out of standard range A Within standard range B TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Floor Wire) Reconnect the connector. B --> See step 66 A: Go to next step
61. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE POWER SOURCE) Disconnect the Ok1 connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition Ok1-3 - Body ground Ignition switch ON 10 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Floor Connector) Reconnect the connector. NG --> See step 68 OK: Go to next step
62. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS) Remove the fuel tank assembly, refer to «REMOVAL»(ref-426781-S26097372902011101200000) . Disconnect the Ok1 connector. Disconnect the fuel vapor-containment valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Ok1-3 - k3-1 Always Below 1 ohms Ok1-7 - k3-2 Always Below 1 ohms Reinstall the fuel tank assembly, refer to «INSTALLATION»(ref-426781-S06548723012011101200000) . TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Vapor-containment valve) *b Front view of wire harness connector (to Floor Wire) Reconnect the connectors. Reinstall the fuel tank assembly. NG --> See step 68 OK: Go to next step
63. REPLACE ECM Replace the ECM, refer to «REMOVAL»(ref-426780-S20256408682011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
64. REPLACE PURGE VSV Replace the purge VSV, refer to «REMOVAL»(ref-426771-S38984277692011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
65. REPLACE CANISTER Replace the canister, refer to «REMOVAL»(ref-426771-S12975672052011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
66. CHECK HARNESS AND CONNECTOR (TANK WIRE HARNESS) Remove the fuel tank assembly, refer to «REMOVAL»(ref-426781-S26097372902011101200000) . Disconnect the Ok1 connector. Disconnect the fuel vapor-containment valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Ok1-3 - k3-1 Always Below 1 ohms Ok1-7 - k3-2 Always Below 1 ohms Reinstall the fuel tank assembly, refer to «INSTALLATION»(ref-426781-S06548723012011101200000) . TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Vapor-containment valve) *b Front view of wire harness connector (to Floor Wire) Reconnect the connectors. Reinstall the fuel tank assembly. NG --> See step 68 OK: Go to next step
67. REPLACE FUEL VAPOR-CONTAINMENT VALVE Replace the fuel vapor-containment valve, refer to «REMOVAL»(ref-426771-S04369826392011101200000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
68. REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
69. REPAIR OR REPLACE VACUUM HOSE (PURGE VSV - THROTTLE WITH MOTOR BODY ASSEMBLY) NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 859

Scheme 860

Scheme 861

Scheme 862

Scheme 863

Scheme 864

Scheme 865

Scheme 866

Scheme 867

Scheme 868

1. CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND) Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B57-46 (E1) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BODY GROUND) OK: Go to next step
2. INSPECT ECM (IGSW VOLTAGE) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A67-1 (IGSW) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> See step 7 OK: Go to next step
3. INSPECT RELAY (EFI MAIN RELAY) Remove the EFI MAIN relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 No battery voltage applied to terminals 1 and 2 10 kohms or higher Battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the EFI MAIN relay. NG --> REPLACE RELAY (EFI MAIN RELAY) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (EFI MAIN RELAY - ECM) Remove the EFI MAIN relay from the engine room relay block. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 3 (EFI MAIN relay terminal) - A67-3 (+B) Always Below 1 ohms 3 (EFI MAIN relay terminal) - A67-4 (+B2) Always Below 1 ohms 1 (EFI MAIN relay terminal) - A67-21 (MREL) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 3 (EFI MAIN relay terminal) or A67-3 (+B) - Body ground Always 10 kohms or higher 3 (EFI MAIN relay terminal) or A67-4 (+B2) - Body ground Always 10 kohms or higher 1 (EFI MAIN relay terminal) or A67-21 (MREL) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to ECM) - - Reconnect the ECM connector. Reinstall the EFI MAIN relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI MAIN RELAY - ECM) OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (BATTERY - EFI MAIN RELAY) Remove the EFI MAIN relay from the engine room relay block. Disconnect the cable from the negative (-) battery terminal. Disconnect the cable from the positive (+) battery terminal. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 5 (EFI MAIN relay terminal) - Battery positive (+) terminal Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 5 (EFI MAIN relay terminal) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the EFI MAIN relay. Reconnect the cable to the positive (+) battery terminal. Reconnect the cable to the negative (-) battery terminal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - EFI MAIN RELAY) OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (EFI MAIN RELAY - BODY GROUND) Remove the EFI MAIN relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 2 (EFI MAIN relay terminal) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the EFI MAIN relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI MAIN RELAY - BODY GROUND) OK --> See step 12
7. INSPECT RELAY (IG2 RELAY) Remove the IG2 relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 No battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the IG2 relay. NG --> REPLACE RELAY (IG2 RELAY) OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (IG2 RELAY - ECM) Remove the IG2 relay from the engine room relay block. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 3 (IG2 relay terminal) - A67-1 (IGSW) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 3 (IG2 relay terminal) or A67-1 (IGSW) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to ECM) - - Reinstall the IG2 relay. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - ECM) OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (IG2 RELAY POWER SOURCE) Remove the IG2 relay from the engine room relay block. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 5 (IG2 relay terminal) - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the IG2 relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - BATTERY) OK: Go to next step
10. CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND) Remove the IG2 relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 2 (IG2 relay terminal) - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the IG2 relay. Result Result Proceed to OK (for w/ Smart Key System) A OK (for w/o Smart Key System) B NG C B --> See step 14 C --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - BODY GROUND) A: Go to next step
11. CHECK HARNESS AND CONNECTOR (IG2 RELAY - MAIN BODY ECU) Disconnect the main body ECU connector. Remove the IG2 relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) - D7-11 (IG2D) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) or D7-11 (IG2D) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to Main Body ECU) - - Reconnect the main body ECU connector. Reinstall the IG2 relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - MAIN BODY ECU) OK --> See step 13
12. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426655-S00596471612011101200000)
13. GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-426779-S40927073552011101200000)
14. CHECK IGNITION SWITCH Check the Ignition Switch (. Refer to «INSPECTION»(ref-426791-S01402665012011101200000) ). NG --> REPAIR OR REPLACE IGNITION SWITCH LOCK CYLINDER & KEY SET OK: Go to next step
15. CHECK HARNESS AND CONNECTOR (IG2 RELAY - IGNITION SWITCH) Disconnect the Ignition Switch connector. Remove the IG2 relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) - D70-6 (IG2) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1 (IG2 relay terminal) or D70-6 (IG2) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to Ignition Switch Assembly) - - Reconnect the main body ECU connector. Reinstall the IG2 relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - IGNITION SWITCH) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - IGNITION SWITCH)

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 869

Scheme 870

Scheme 871

Scheme 872

Scheme 873

Scheme 874

Scheme 875

Scheme 876

Scheme 877

1. CHECK FUEL PUMP OPERATION Check the fuel pump operation, refer to «INSPECTION»(ref-426781-S30984156222011101200000) . NG --> See step 5 OK: Go to next step
2. INSPECT RELAY (F/PMP RELAY) Remove the F/PMP relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 4 No battery voltage applied to terminals 1 and 2 Below 1 ohms 3 - 4 Battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 No battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the F/PMP relay. NG --> REPLACE RELAY (F/PMP RELAY) OK: Go to next step
3. INSPECT FUEL PUMP RESISTOR Disconnect the fuel pump resistor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 0.30 to 0.34 ohms TEXT IN ILLUSTRATION *a Component without harness connected (Fuel Pump Resistor) Reconnect the fuel pump resistor connector. NG --> See step 14 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (F/PMP RELAY - FUEL PUMP RESISTOR) Remove the F/PMP relay from the engine room relay block. Disconnect the fuel pump resistor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 5 (F/PMP relay) - A72-1 Always Below 1 ohms 4 (F/PMP relay) - A72-2 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 5 (Fuel pump relay) or A72-1 - Body ground Always 10 kohms or higher 4 (Fuel pump relay) or A72-2 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to Fuel Pump Resistor) - - Reinstall the F/PMP relay. Reconnect the fuel pump resistor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (F/PMP RELAY - FUEL PUMP RESISTOR) OK --> See step 15
5. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CIRCUIT OPENING RELAY) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Pump Speed Control. Check the operation of the relay while operating it using the Techstream. OK Operating noise can be heard from the relay. NG --> See step 11 OK: Go to next step
6. INSPECT FUEL PUMP Inspect the fuel pump, refer to «INSPECTION - Step 1»(ref-426781-S21756325692011101200000) . NG --> See step 16 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (FUEL PUMP - F/PMP RELAY) Disconnect the fuel pump connector. Remove the F/PMP relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition k2-4 - 4 (F/PMP relay terminal) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition k2-4 or 4 (F/PMP relay terminal) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to Fuel Pump) - - Reinstall the F/PMP relay. Reconnect the fuel pump connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL PUMP - F/PMP RELAY) OK: Go to next step
8. INSPECT ENGINE ROOM RELAY BLOCK (C/OPN RELAY - F/PMP RELAY) Remove the C/OPN relay from the engine room relay block. Remove the F/PMP relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 3 (C/OPN relay) - 2 (F/PMP relay terminal) Always Below 1 ohms 3 (C/OPN relay) - 3 (F/PMP relay terminal) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 3 (C/OPN relay) or 2 (F/PMP relay terminal) - Body ground Always 10 kohms or higher 3 (C/OPN relay) or 3 (F/PMP relay terminal) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the C/OPN relay. Reinstall the F/PMP relay. NG --> REPLACE ENGINE ROOM RELAY BLOCK OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (FUEL PUMP - BODY GROUND) Disconnect the fuel pump connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition k2-5 - Body ground Always Below 1 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Pump) Reconnect the fuel pump connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL PUMP - BODY GROUND) OK: Go to next step
10. CHECK FUEL LINE Check the fuel lines for leaks or blockage. OK No leaks or blockage NG --> REPAIR OR REPLACE FUEL LINE OK --> REPAIR OR REPLACE FUEL SYSTEM (PRESSURE REGULATOR AND FUEL FILTER)
11. INSPECT RELAY (C/OPN RELAY) Remove the C/OPN relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 No battery voltage applied to terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage applied to terminals 1 and 2 Below 1 ohms Reinstall the C/OPN relay. NG --> REPLACE RELAY (C/OPN RELAY) OK: Go to next step
12. CHECK HARNESS AND CONNECTOR (C/OPN RELAY VOLTAGE) Remove the C/OPN relay from the engine room relay block. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition 5 (C/OPN relay terminal) - Body ground Ignition switch ON 11 to 14 V 1 (C/OPN relay terminal) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *1 Engine Room Relay Block Reinstall the C/OPN relay. NG --> REPLACE ENGINE ROOM RELAY BLOCK OK: Go to next step
13. CHECK HARNESS AND CONNECTOR (C/OPN RELAY - ECM) Remove the C/OPN relay from the engine room relay block. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 2 (C/OPN relay terminal) - A67-8 (FC) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 2 (C/OPN relay terminal) or A67-8 (FC) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to ECM) - - Reconnect the ECM connector. Reinstall the C/OPN relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (C/OPN RELAY - ECM) OK --> See step 17
14. REPLACE FUEL PUMP RESISTOR. Refer to «REMOVAL»(ref-426781-S29046169732011101200000)
15. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426655-S00596471612011101200000)
16. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-426781-S29046169732011101200000)
17. REPLACE ECM. Refer to «REMOVAL»(ref-426780-S20256408682011101200000)

Note. Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 878

Scheme 879

Scheme 880

1. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) Disconnect the fuel injector assembly connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition B65-2 - Body ground Ignition switch ON 11 to 14 V B66-2 - Body ground Ignition switch ON 11 to 14 V B67-2 - Body ground Ignition switch ON 11 to 14 V B68-2 - Body ground Ignition switch ON 11 to 14 V B69-2 - Body ground Ignition switch ON 11 to 14 V B70-2 - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Injector Assembly) Reconnect the fuel injector assembly connector. NG --> See step 4 OK: Go to next step
2. INSPECT FUEL INJECTOR ASSEMBLY Inspect the fuel injector assembly, refer to «INSPECTION»(ref-426781-S11577686352011101200000) . NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) Disconnect the fuel injector assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B65-1 - B57-19 (#10) Always Below 1 ohms B66-1 - B57-20 (#20) Always Below 1 ohms B67-1 - B57-53 (#30) Always Below 1 ohms B68-1 - B57-49 (#40) Always Below 1 ohms B69-1 - B57-21 (#50) Always Below 1 ohms B70-1 - B57-52 (#60) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B65-1 or B57-19 (#10) - Body ground Always 10 kohms or higher B66-1 or B57-20 (#20) - Body ground Always 10 kohms or higher B67-1 or B57-53 (#30) - Body ground Always 10 kohms or higher B68-1 or B57-49 (#40) - Body ground Always 10 kohms or higher B69-1 or B57-21 (#50) - Body ground Always 10 kohms or higher B70-1 or B57-52 (#60) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Injector Assembly) *b Front view of wire harness connector (to ECM) Reconnect the ECM connector. Reconnect the fuel injector assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) OK --> See step 6
4. CHECK HARNESS AND CONNECTOR (IG2 RELAY - FUEL INJECTOR ASSEMBLY) Disconnect the fuel injector assembly connector. Remove the IG2 relay from the engine room relay block. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B65-2 - 3 (IG2 relay terminal) Always Below 1 ohms B66-2 - 3 (IG2 relay terminal) Always Below 1 ohms B67-2 - 3 (IG2 relay terminal) Always Below 1 ohms B68-2 - 3 (IG2 relay terminal) Always Below 1 ohms B69-2 - 3 (IG2 relay terminal) Always Below 1 ohms B70-2 - 3 (IG2 relay terminal) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B65-2 or 3 (IG2 relay terminal) - Body ground Always 10 kohms or higher B66-2 or 3 (IG2 relay terminal) - Body ground Always 10 kohms or higher B67-2 or 3 (IG2 relay terminal) - Body ground Always 10 kohms or higher B68-2 or 3 (IG2 relay terminal) - Body ground Always 10 kohms or higher B69-2 or 3 (IG2 relay terminal) - Body ground Always 10 kohms or higher B70-2 or 3 (IG2 relay terminal) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Engine Room Relay Block - - *a Front view of wire harness connector (to Fuel Injector Assembly) - - Reinstall the IG2 relay. Reconnect the fuel injector assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - FUEL INJECTOR ASSEMBLY) OK --> See step 7
5. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-426781-S31021276762011101200000)
6. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-426655-S00596471612011101200000)
7. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-426777-S20642085772011101200000)