Engine Control System (Diagnostic Codes (P1451 - U0293) & Circuit Tests) (Plug-In): Diagnosis Toyota Prius Plug-in

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

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1. CONFIRM DTC AND FUEL TANK PRESSURE Connect the Techstream to the DLC3. Turn the power switch on (IG). 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 / Gas Evaporative / Vapor Pressure Tank. Read the EVAP (evaporative emission) pressure displayed on the Techstream. RESULT DTC Result Suspected Trouble Area Proceed to P1451 - Fuel tank pressure sensor C P1452 Less than -17.1875 kPa(gauge) [-128.93 mmHg(gauge)] Wire harness/connector (ECM - fuel tank pressure sensor) Fuel tank pressure sensor Short in ECM circuit A P1453 Higher than 23.9375 kPa(gauge) [179.57 mmHg(gauge)] Wire harness/connector (ECM - fuel tank pressure sensor) Fuel tank pressure sensor Open in ECM circuit B B --> See step 4 C --> See step 5 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (FUEL TANK PRESSURE SENSOR - ECM) Turn the power switch off. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. RESULT Tester Connection Condition Result Suspected Trouble Area Proceed to D28-77 (PTNK) - Body ground Always Below 10 ohms Wire harness/connector (ECM - fuel tank pressure sensor) Short in fuel tank pressure sensor circuit A 10 kohms or higher Wire harness/connector (ECM - fuel tank pressure sensor) Short in ECM circuit B B --> See step 7 A: Go to next step
3. CHECK HARNESS AND CONNECTOR (FUEL TANK PRESSURE SENSOR - ECM) Disconnect the fuel tank pressure sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. RESULT Tester Connection Condition Result Suspected Trouble Area Proceed to D28-77 (PTNK) - Body ground Always 10 kohms or higher Short in fuel tank pressure sensor circuit A Below 10 ohms Short in wire harness/connector (ECM - fuel tank pressure sensor) B B --> See step 6 A: Go to next step
4. CHECK HARNESS AND CONNECTOR (FUEL TANK PRESSURE SENSOR - ECM, BODY GROUND) Disconnect the fuel tank pressure sensor connector. Turn the power switch on (IG). Measure the voltage and resistance according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition z33-3 (VC) - Body ground Power switch on (IG) 4.5 to 5.5 V Standard Resistance (Check for Open) Tester Connection Condition Specified Condition z33-1 (E2) - Body ground Always Below 100 ohms RESULT Result Suspected Trouble Area Proceed to Voltage and resistance within standard ranges Open in fuel tank pressure sensor circuit A Voltage and resistance outside standard ranges Open in wire harness/connector (ECM - fuel tank pressure sensor) B TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Tank Pressure Sensor) 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-553426-S32919549372013051700000) . NEXT --> See step 8
6. REPAIR OR REPLACE HARNESS OR CONNECTOR HINT: If the exhaust pipe 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-553431-S24148051042013051700000) . NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (AFTER REPAIR) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-553305-S22976237422013051700000) . Turn the power switch off and wait for at least 30 seconds. Turn the power switch on (IG). Turn the Techstream on. Perform the Evaporative System Check using the Techstream, referring to the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P1451, P1452 or P1453. Check the DTC judgment result. RESULT Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions N/A Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit NEXT --> END

HINT

1. DTC P148F may be stored if the engine has continuously run with insufficient engine coolant. If the engine coolant is sufficient and DTC P148F recur when the vehicle is brought to the workshop, confirm whether engine coolant was added after the vehicle had been driven with insufficient engine coolant.
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.

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

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.

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-553305-S02986196612013051700000) .

Note. Inspect the fuses for circuits 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.

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-553305-S02986196612013051700000) .
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.

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

HINT

1. Sensor 1 refers to the sensor closest to the engine assembly.
2. Sensor 2 refers to the sensor farthest away from the engine assembly.
3. 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.
4. 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.
5. 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.

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 A/F Sensor Determination (worst value) #1, Engine Speed Fluctuation Avg (worst value) #1 to #4, Cylinder #1 to #4 Misfire Count, Short FT #1 and Long FT #1 in the Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-553305-S02986196612013051700000) .
3. Sensor 1 refers to the sensor closest to the engine assembly.
4. Sensor 2 refers to the sensor farthest away from the engine assembly.

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

HINT

1. Sensor 1 refers to the sensor closest to the engine assembly.
2. Sensor 2 refers to the sensor farthest away from the engine assembly.
3. 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.
4. Refer to "Data List / Active Test" [AFS Voltage B1S1]. Refer to «DATA LIST / ACTIVE TEST»(ref-553305-S02986196612013051700000) .

HINT

The vent valve is built into the canister pump module.

Refer to EVAP System. Refer to EVAP System .

Refer to EVAP System. Refer to EVAP System .

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.

Note. Inspect the fuses for circuits 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 be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

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1. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE ELECTRIC WATER PUMP) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Electric Water Pump. Touch the engine water pump and check that the pump assembly is operating (vibrating). OK The engine water pump assembly is operating (vibrating). NG --> See step 4 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (ENGINE WATER PUMP ASSEMBLY - ECM) HINT: Confirm a good connection at the engine water pump assembly and ECM connectors. Disconnect the engine water pump assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D13-2 (NWP) - A57-11 (WPI) Always Below 1 ohms D13-4 (SWP) - A57-10 (WPO) Always Below 1 ohms D13-2 (NWP) or A57-11 (WPI) - Body ground Always 10 kohms or higher D13-4 (SWP) or A57-10 (WPO) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. CHECK TERMINAL VOLTAGE (WPI VOLTAGE) Disconnect the engine water pump assembly connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D13-2 (NWP) - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Engine Water Pump Assembly) NG --> See step 15 OK --> See step 13
4. CHECK TERMINAL VOLTAGE (POWER SOURCE OF ENGINE WATER PUMP ASSEMBLY) HINT: Confirm a good connection at the engine water pump assembly and ECM connectors. Disconnect the engine water pump assembly connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D13-1 (+B) - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Engine Water Pump Assembly) NG --> See step 9 OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (ENGINE WATER PUMP ASSEMBLY - BODY GROUND) Disconnect the engine water pump assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D13-5 (PGND) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
6. CHECK HARNESS AND CONNECTOR (ENGINE WATER PUMP ASSEMBLY - ECM) Disconnect the engine water pump assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D13-2 (NWP) - A57-11 (WPI) Always Below 1 ohms D13-4 (SWP) - A57-10 (WPO) Always Below 1 ohms D13-2 (NWP) or A57-11 (WPI) - Body ground Always 10 kohms or higher D13-4 (SWP) or A57-10 (WPO) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
7. REPLACE ENGINE WATER PUMP ASSEMBLY Replace the engine water pump assembly. Refer to «REMOVAL»(ref-553423-S16698181462013051700000) . NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (DTC P261B, P261C OR P261D) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-553305-S22976237422013051700000) . Turn the power switch off and wait for at least 30 seconds. Turn the power switch on (IG). Turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. RESULT Result Proceed to DTC P261B, P261C or P261D is output A DTC is not output B B --> END A --> See step 14
9. INSPECT RELAY (ENG W/P RELAY) Remove the ENG W/P relay from the engine room relay block and junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 No auxiliary battery voltage applied between terminals 1 and 2 10 kohms or higher 3 - 5 Auxiliary battery voltage applied between terminals 1 and 2 Below 1 ohms NG --> REPLACE RELAY (ENG W/P RELAY) OK: Go to next step
10. CHECK HARNESS AND CONNECTOR (ENG W/P RELAY - ENGINE WATER PUMP ASSEMBLY) Remove the ENG W/P relay from the engine room relay block and junction block assembly. Disconnect the engine water pump assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition ENG W/P relay terminal 5 - D13-1 (+B) Always Below 1 ohms ENG W/P relay terminal 5 or D13-1 (+B) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
11. CHECK TERMINAL VOLTAGE (POWER SOURCE OF ENG W/P RELAY) Remove the ENG W/P relay from the engine room relay block and junction block assembly. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition ENG W/P relay terminal 3 - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Engine Room Relay Block and Junction Block Assembly *2 ENG W/P Relay NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - ENG W/P RELAY) OK: Go to next step
12. CHECK HARNESS AND CONNECTOR (ENG W/P RELAY - BODY GROUND) Remove the ENG W/P relay from the engine room relay block and junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition ENG W/P relay terminal 1 - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENG W/P RELAY - EFI MAIN RELAY)
13. REPLACE ENGINE WATER PUMP ASSEMBLY. Refer to «REMOVAL»(ref-553423-S16698181462013051700000)
14. REPLACE ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000)
15. REPLACE ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000)

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

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, charge the HV battery.
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.

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

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.

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 power switch off and wait 10 seconds. Turn the power switch on (IG). Turn the power switch off and wait 10 seconds. Connect the Techstream to the DLC3. Turn the power switch on (IG) 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 Leak detection pump stuck OFF P2402 Leak detection 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 Leak detection pump stuck OFF P043E, P043F, P2401, P2402, P2419 Leak detection 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: The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the Techstream. It takes a maximum of approximately 40 minutes. Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F). Clear the DTCs. 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 Result Conclusion Proceed to A pending DTC is stored A malfunction occurs and troubleshooting can be performed A A pending DTC is not stored No malfunctions occur and it is difficult to perform troubleshooting B A pending DTC is not stored and any of the current DTCs (P1422, P1423, or P2450) is stored DTCs are stored because the fuel tank cap is not tightened firmly C B --> See step 37 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 Leak detection pump stuck off P043E, P043F, P2401, P2402 and P2419 B Leak detection 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 17 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 A Purge VSV stuck closed P0441 A Gross leak from canister P0441, P1421 A Small leak from fuel tank P1422 B Gross leak from fuel tank P1423 B Fuel vapor-containment valve stuck open P1423, P2450 C Fuel vapor-containment valve stuck closed P2451 C B --> See step 22 C --> See step 25 A: Go to next step
5. CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD) Disconnect the hose (connected to the intake manifold) from the purge VSV. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-553290-S22500871302013051700000) . Start the engine. Use your finger to confirm that the hose has suction. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Intake Manifold) RESULT Result Suspected Trouble Area Proceed to Suction applied EVAP hose between purge VSV and intake manifold normal A No suction Intake manifold port EVAP hose between purge VSV and intake manifold B B --> See step 33 A: Go to next step
6. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) Disconnect the hose (connected to the canister) from the purge VSV. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-553290-S22500871302013051700000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control. 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. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Canister) RESULT Result Suspected Trouble Area Proceed to Suction applied when purge VSV turned off Purge VSV stuck open ECM A No suction when purge VSV turned on Purge VSV stuck closed A No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal B B --> See step 20 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 auxiliary 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 auxiliary battery voltage applied to purge VSV. Conclusion: purge VSV is normal. A No air flows from A to B when auxiliary battery voltage is applied to purge VSV. Conclusion: purge VSV is malfunctioning. B Air flows from A to B when auxiliary battery voltage is not applied to purge VSV. Conclusion: purge VSV is malfunctioning. B B --> See step 29 A: Go to next step
8. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) Disconnect the purge VSV connector. Turn the power switch on (IG). 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 Condition Specified Condition Suspected Trouble Area Proceed to D11-2 - Body ground Power switch on (IG) 11 to 14 V Normal A Other than result above Wire harness or connectors between purge VSV and EFI MAIN relay B B --> See step 36 A: Go to next step
9. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the ECM connector. Disconnect the purge VSV connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D28-28 (PRG) - D11-1 Always Below 1 ohms D28-28 (PRG) or D11-1 - Body ground Always 10 kohms or higher NG --> See step 36 OK: Go to next step
10. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
11. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VACUUM PUMP) Connect the Techstream to DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump. Turn the vacuum pump (leak detection pump) on with the Techstream. Touch the canister pump module and check if the pump is moving. OK Pump operates NG --> See step 13 OK: Go to next step
12. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR VENT VALVE) Connect the Techstream to DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Vent Valve. Touch the canister pump module, use the Techstream to turn the vent valve ON and OFF, and check if the vent valve is moving. OK Vent valve vibration can be felt. OK --> See step 30 NG --> See step 17
13. CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE) Disconnect the canister pump module connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition z32-3 (MTRB) - z32-4 (MGND) Power switch on (IG) 10 to 14 V Power switch on (IG) Below 3 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - RESULT Result Proceed to Out of standard range A Within standard range B B --> See step 30 A: Go to next step
14. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z32-4 (MGND) - Body ground Always Below 1 ohms NG --> See step 36 OK: Go to next step
15. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Disconnect the ECM connector. Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition A57-34 (MPMP) - z32-3 (MTRB) Always Below 1 ohms A57-34 (MPMP) or z32-3 (MTRB) - Body ground Always 10 kohms or higher NG --> See step 36 OK: Go to next step
16. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
17. CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT) Disconnect the canister pump module connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition z32-5 (VLVB) - Body ground Power switch on (IG) 10 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - RESULT Voltage Proceed to Within standard range A Out of standard range B B --> See step 36 A: Go to next step
18. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Disconnect the canister pump module connector. Apply auxiliary 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 Result Suspected Trouble Area Proceed to Operating ECM A Not operating Vent valve B B --> See step 30 A: Go to next step
19. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
20. CHECK HOSES (PURGE VSV - CANISTER) Connect the EVAP pressure tester tool to the canister pump module with the adapter. TEXT IN ILLUSTRATION *1 Canister Pump Module *2 Adapter *3 EVAP Pressure Tester Tool - - Confirm good connection at the canister pump module. Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [24 and 28 mmHg(gauge)]. NOTE: Higher than 4.7 kPa(gauge) [35 mmHg(gauge)] 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 areas where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. NEXT: Go to next step
21. REPLACE MALFUNCTIONING PART Repair or replace the leak point. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
22. CHECK FUEL CAP Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications. Tighten the fuel cap until a few click sounds are heard. HINT: If an EVAP tester is available, check the fuel cap using the tester. Remove the fuel cap and install it onto a fuel cap adapter. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa(gauge) [24 to 27.75 mmHg(gauge)] using an EVAP tester pump. Seal the adapter and wait for 2 minutes. Check the pressure. If the pressure is 2 kPa(gauge) [15 mmHg(gauge)] or higher, the fuel cap is normal. RESULT Result Suspected Trouble Area Proceed to Fuel cap correctly installed - A Fuel cap loose Fuel cap improperly installed Defective fuel cap Fuel cap does not meet OEM specifications B B --> See step 32 A: Go to next step
23. CHECK HOSES (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK) Connect the EVAP pressure tester tool to the canister pump module with the adapter. TEXT IN ILLUSTRATION *1 Canister Pump Module *2 Adapter *3 EVAP Pressure Tester Tool - - Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream 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. Confirm good connection at the canister pump module. Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [24 and 28 mmHg(gauge)]. NOTE: Higher than 4.7 kPa(gauge) [35 mmHg(gauge)] 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 areas where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. NEXT: Go to next step
24. REPLACE MALFUNCTIONING PART Repair or replace the leak point. NEXT --> PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
25. CHECK FUEL VAPOR-CONTAINMENT VALVE (POWER SOURCE CIRCUIT) Disconnect the fuel vapor-containment valve connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Vapor-Containment Valve) Standard Voltage Tester Connection Condition Specified Condition R53-2 (+B) - R53-1 (CCV) Power switch on (IG) 10 to 14 V NG --> See step 36 OK: Go to next step
26. INSPECT FUEL VAPOR-CONTAINMENT VALVE Inspect the fuel vapor-containment valve. Refer to «INSPECTION»(ref-553426-S41497916752013051700000) . NG --> See step 31 OK: Go to next step
27. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - ECM) Disconnect the ECM connector. Disconnect the fuel vapor-containment valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D28-25 (CCV2) - R53-1 (CCV) Always Below 1 ohms D28-25 (CCV2) or R53-1 (CCV) - Body ground Always 10 kohms or higher NG --> See step 36 OK: Go to next step
28. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
29. REPLACE PURGE VSV Replace the purge VSV. Refer to «REMOVAL»(ref-553426-S38305455952013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
30. REPLACE CANISTER Replace the canister. Refer to «REMOVAL»(ref-553426-S04178548692013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
31. REPLACE FUEL VAPOR-CONTAINMENT VALVE Replace the fuel vapor-containment valve. Refer to «REMOVAL»(ref-553426-S32588083652013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
32. REPLACE FUEL CAP Replace the fuel cap. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
33. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) Disconnect the EVAP hose from the intake manifold. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-553290-S22500871302013051700000) . Start the engine. Use your finger to confirm that the port of the intake manifold has suction. RESULT Result Suspected Trouble Area Proceed to Suction applied EVAP hose between intake manifold and purge VSV A No suction Intake manifold B B --> See step 35 A: Go to next step
34. REPAIR OR REPLACE EVAP HOSE (INTAKE MANIFOLD - PURGE VSV) Repair or replace the EVAP hose. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
35. REPAIR OR REPLACE INTAKE MANIFOLD (EVAP PURGE PORT) Check that the EVAP purge port of the intake manifold is not clogged. If necessary, replace the intake manifold. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
36. REPAIR OR REPLACE HARNESS OR CONNECTOR Repair or replace harness or connector. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
37. 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-553305-S22976237422013051700000) . 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: The Evaporative System Check (Automatic Mode) consists of 9 steps performed automatically by the Techstream. It takes a maximum of approximately 40 minutes. Do not perform the Evaporative System Check when the fuel tank is higher than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature less than 35°C (95°F). TECHSTREAM 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 (Open) Vacuum Pump Leak detection 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 vent valve open time Time (PUMP) Accumulated leak detection 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 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 pressure measurement 6. Resetting Resetting 7. Tank Leak Check Fuel tank pressure measurement 8. Reference Pressure (0.02 inch) Check 3 Third reference pressure measurement 9. Atmosphere Pressure Check Atmospheric pressure measurement NEXT: Go to next step
38. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 1) Select step 1 and wait 10 seconds. NEXT: Go to next step
39. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 2) Perform step 2. Check the evaporative pressure 2 seconds after the leak detection pump is activated*. (step b) *: The leak detection 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. RESULT Result Suspected Trouble Area Proceed to EVAP pressure in step (b) is between -4.75 kPa(gauge) [-35.63 mmHg(gauge)] and -0.957 kPa(gauge) [-7.178 mmHg(gauge)] Not yet determined A EVAP pressure in step (b) is -0.957 kPa(gauge) [-7.178 mmHg(gauge)] or higher Reference orifice high-flow Leak detection pump stuck off B EVAP pressure in step (b) is less than -4.75 kPa(gauge) [-35.63 mmHg(gauge)] Reference orifice clogged C B --> See step 53 C --> See step 72 A: Go to next step
40. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 3) Perform step 3. Check the evaporative (EVAP) pressure change in step 3. (step b) RESULT Result Suspected Trouble Area Proceed to EVAP pressure change in step (b) is 0.3 kPa(gauge) [2.2 mmHg(gauge)] or higher Not yet determined A EVAP pressure change in step (b) is less than 0.3 kPa(gauge) [2.2 mmHg(gauge)] Vent valve (switching valve) stuck off B Check the fuel tank pressure change in step 3. RESULT Result Suspected Trouble Area Proceed to Fuel tank pressure change in step (b) is less than 0.5 kPa(gauge) [3.75 mmHg(gauge)] Not yet determined A Fuel tank pressure change in step (b) is higher than 0.5 kPa(gauge) [3.75 mmHg(gauge)] Fuel vapor-containment valve stuck on (open) C Check the EVAP pressure again when it has stabilized. This pressure is the canister leak pressure. Compare the first reference pressure with the canister leak pressure. RESULT 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 59 C --> See step 67 D --> See step 62 A: Go to next step
41. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 4) Perform step 4. Check the evaporative (EVAP) pressure change in step 4. (step b) RESULT Result Suspected Trouble Area Proceed to EVAP pressure in step (b) changes to 101 kPa(abs) [762 mmHg(abs)] or higher Not yet determined A EVAP pressure in step (b) remains below 101 kPa(abs) [762 mmHg(abs)] Purge VSV stuck closed B B --> See step 47 A: Go to next step
42. 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. NEXT: Go to next step
43. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL MODE STEP 6) Perform step 6 and wait 5 seconds. NEXT: Go to next step
44. 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. RESULT Result Suspected Trouble Area Proceed to Fuel tank pressure change is higher than 0.5 kPa(gauge) [3.75 mmHg(gauge)] and EVAP pressure is higher than 0.9 (gauge) [6.76 mmHg(gauge)] Not yet determined A Fuel tank pressure change is less than 0.5 kPa(gauge) [3.75 mmHg(gauge)] and EVAP pressure is less than 0.9 (gauge) [6.76 mmHg(gauge)] Fuel vapor-containment valve stuck OFF (closed) B B --> See step 67 A: Go to next step
45. 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. Compare the fuel tank pressure checked in step 7 with the third reference pressure. RESULT 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 64 A: Go to next step
46. PERFORM CONFIRMATION DRIVING PATTERN Refer to Confirmation Driving Pattern. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
47. CHECK VACUUM HOSE (PURGE VSV - INTAKE MANIFOLD) Disconnect the hose (connected to the intake manifold) from the purge VSV. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-553290-S22500871302013051700000) . Start the engine. Use your finger to confirm that the hose has suction. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Intake Manifold) RESULT Result Suspected Trouble Area Proceed to Suction applied EVAP hose between purge VSV and intake manifold normal A No suction Intake manifold port EVAP hose between purge VSV and intake manifold B B --> See step 75 A: Go to next step
48. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) Disconnect the hose (connected to the canister) from the purge VSV. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-553290-S22500871302013051700000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Evap Control. 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. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Canister) RESULT Result Suspected Trouble Area Proceed to Suction applied when purge VSV turned off Purge VSV stuck open ECM A No suction when purge VSV turned on Purge VSV stuck closed A No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal B B --> See step 62 A: Go to next step
49. 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 auxiliary 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 auxiliary battery voltage applied to purge VSV. Conclusion: purge VSV is normal. A No air flows from A to B when auxiliary battery voltage is applied to purge VSV. Conclusion: purge VSV is malfunctioning. B Air flows from A to B when auxiliary battery voltage is not applied to purge VSV. Conclusion: purge VSV is malfunctioning. B B --> See step 71 A: Go to next step
50. CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) Disconnect the purge VSV connector. Turn the power switch on (IG). 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 Condition Specified Condition Suspected Trouble Area Proceed to D11-2 - Body ground Power switch on (IG) 11 to 14 V Normal A Other than result above Wire harness or connectors between purge VSV and EFI MAIN relay B B --> See step 78 A: Go to next step
51. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the ECM connector. Disconnect the purge VSV connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D28-28 (PRG) - D11-1 Always Below 1 ohms D28-28 (PRG) or D11-1 - Body ground Always 10 kohms or higher NG --> See step 78 OK: Go to next step
52. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
53. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VACUUM PUMP) Connect the Techstream to DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Vacuum Pump. Turn the vacuum pump (leak detection pump) on with the Techstream. Touch the canister pump module and check if the pump is moving. OK Pump operates NG --> See step 55 OK: Go to next step
54. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR VENT VALVE) Connect the Techstream to DLC3. Turn the power switch on (IG). Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for Vent Valve. Touch the canister pump module, use the Techstream to turn the vent valve ON and OFF, and check if the vent valve is moving. OK Vent valve vibration can be felt. OK --> See step 72 NG --> See step 59
55. CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE) Disconnect the canister pump module connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition z32-3 (MTRB) - z32-4 (MGND) Power switch on (IG) 10 to 14 V Power switch on (IG) Below 3 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - RESULT Result Proceed to Out of standard range A Within standard range B B --> See step 72 A: Go to next step
56. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z32-4 (MGND) - Body ground Always Below 1 ohms NG --> See step 78 OK: Go to next step
57. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Disconnect the ECM connector. Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition A57-34 (MPMP) - z32-3 (MTRB) Always Below 1 ohms A57-34 (MPMP) or z32-3 (MTRB) - Body ground Always 10 kohms or higher NG --> See step 78 OK: Go to next step
58. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
59. CHECK CANISTER PUMP MODULE (VENT VALVE POWER SOURCE CIRCUIT) Disconnect the canister pump module connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition z32-5 (VLVB) - Body ground Power switch on (IG) 10 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - RESULT Result Proceed to Within standard range A Out of standard range B B --> See step 78 A: Go to next step
60. CHECK HARNESS AND CONNECTOR (VENT VALVE - BODY GROUND) Disconnect the canister pump module connector. Apply auxiliary 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 Result Suspected Trouble Area Proceed to Operating ECM A Not operating Vent valve B B --> See step 72 A: Go to next step
61. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
62. CHECK HOSES (PURGE VSV - CANISTER) Connect the EVAP pressure tester tool to the canister pump module with the adapter. TEXT IN ILLUSTRATION *1 Canister Pump Module *2 Adapter *3 EVAP Pressure Tester Tool - - Confirm good connection at the canister pump module. Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [24 and 28 mmHg(gauge)]. NOTE: Higher than 4.7 kPa(gauge) [35 mmHg(gauge)] 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 areas where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. NEXT: Go to next step
63. REPLACE MALFUNCTIONING PART Repair or replace the leak point. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
64. CHECK FUEL CAP Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications. Tighten the fuel cap until a few click sounds are heard. HINT: If an EVAP tester is available, check the fuel cap using the tester. Remove the fuel cap and install it onto a fuel cap adapter. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa(gauge) [24 to 27.75 mmHg(gauge)] using an EVAP tester pump. Seal the adapter and wait for 2 minutes. Check the pressure. If the pressure is 2 kPa(gauge) [15 mmHg(gauge)] or higher, the fuel cap is normal. RESULT Result Suspected Trouble Area Proceed to Fuel cap correctly installed - A Fuel cap loose Fuel cap improperly installed Defective fuel cap Fuel cap does not meet OEM specifications B B --> See step 74 A: Go to next step
65. CHECK HOSES (FUEL VAPOR-CONTAINMENT VALVE - FUEL TANK) Connect the EVAP pressure tester tool to the canister pump module with the adapter. TEXT IN ILLUSTRATION *1 Canister Pump Module *2 Adapter *3 EVAP Pressure Tester Tool - - Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream 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. Confirm good connection at the canister pump module. Pressurize the EVAP system to between 3.2 and 3.7 kPa(gauge) [24 and 28 mmHg(gauge)]. NOTE: Higher than 4.7 kPa(gauge) [35 mmHg(gauge)] 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 areas where bubbles appear. HINT: If the system has leaks, a whistling sound will be heard. NEXT: Go to next step
66. REPLACE MALFUNCTIONING PART Repair or replace the leak point. NEXT --> PERFORM EVAP SYSTEM CHECK AGAIN (AUTO OPERATION)
67. CHECK FUEL VAPOR-CONTAINMENT VALVE (POWER SOURCE CIRCUIT) Disconnect the fuel vapor-containment valve connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Vapor-Containment Valve) Standard Voltage Tester Connection Condition Specified Condition R53-2 (+B) - R53-1 (CCV) Power switch on (IG) 10 to 14 V NG --> See step 78 OK: Go to next step
68. INSPECT FUEL VAPOR-CONTAINMENT VALVE Inspect the fuel vapor-containment valve. Refer to «INSPECTION»(ref-553426-S41497916752013051700000) . NG --> See step 73 OK: Go to next step
69. CHECK HARNESS AND CONNECTOR (FUEL VAPOR-CONTAINMENT VALVE - ECM) Disconnect the ECM connector. Disconnect the fuel vapor-containment valve connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D28-25 (CCV2) - R53-1 (CCV) Always Below 1 ohms D28-25 (CCV2) or R53-1 (CCV) - Body ground Always 10 kohms or higher NG --> See step 78 OK: Go to next step
70. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-553431-S24148051042013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
71. REPLACE PURGE VSV Replace the purge VSV. Refer to «REMOVAL»(ref-553426-S38305455952013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
72. REPLACE CANISTER Replace the canister. Refer to «REMOVAL»(ref-553426-S04178548692013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
73. REPLACE FUEL VAPOR-CONTAINMENT VALVE Replace the fuel vapor-containment valve. Refer to «REMOVAL»(ref-553426-S32588083652013051700000) . NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
74. REPLACE FUEL CAP Replace the fuel cap. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
75. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) Disconnect the EVAP hose from the intake manifold. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-553290-S22500871302013051700000) . Start the engine. Use your finger to confirm that the port of the intake manifold has suction. RESULT Result Suspected Trouble Area Proceed to Suction applied EVAP hose between intake manifold and purge VSV A No suction Intake manifold B B --> See step 77 A: Go to next step
76. REPAIR OR REPLACE VACUUM HOSE (INTAKE MANIFOLD - PURGE VSV) Repair or replace EVAP hose. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
77. REPAIR OR REPLACE INTAKE MANIFOLD (EVAP PURGE PORT) Check that the EVAP purge port of the intake manifold is not clogged. If necessary, replace the intake manifold. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)
78. REPAIR OR REPLACE HARNESS OR CONNECTOR Repair or replace harness or connector. NEXT --> PERFORM EVAPORATIVE SYSTEM CHECK AGAIN (AUTOMATIC MODE)

Note. After turning power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work. Refer to PRECAUTION . Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 281

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 D28-104 (E1) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. INSPECT ECM (IGSW VOLTAGE) Disconnect the ECM connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A57-28 (IGSW) - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> See step 6 OK: Go to next step
3. INSPECT NO. 2 INTEGRATION RELAY (EFI MAIN RELAY) Inspect the No. 2 integration relay (EFI MAIN relay). Refer to «INSPECTION»(ref-553431-S08288945402013051700000) . NG --> See step 11 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY (EFI MAIN RELAY) - ECM) Remove the No. 2 integration relay (EFI MAIN relay) from the engine room relay block and junction block assembly. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1B-4 - A57-1 (+B2) Always Below 1 ohms 1B-4 - A57-2 (+B) Always Below 1 ohms 1B-2 - A57-6 (MREL) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY (EFI MAIN RELAY) - BODY GROUND) Remove the No. 2 integration relay (EFI MAIN relay) from the engine room relay block and junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1B-3 - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 13
6. INSPECT NO. 2 INTEGRATION RELAY (IG2 RELAY) Inspect the No. 2 integration relay (IG2 relay). Refer to «INSPECTION»(ref-553431-S08288945402013051700000) . NG --> See step 12 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY (IG2 RELAY) - ECM) Disconnect the ECM connector. Remove the No. 2 integration relay (IG2 relay) from the engine room relay block and junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1A-4 - A57-28 (IGSW) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY (IG2 RELAY) - AUXILIARY BATTERY) Remove the No. 2 integration relay (IG2 relay) from the engine room relay block and junction block assembly. Disconnect the negative (-) auxiliary battery terminal. Disconnect the positive (+) auxiliary battery terminal. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1C-1 - Positive (+) auxiliary battery terminal Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY (IG2 RELAY) - BODY GROUND) Remove the No. 2 integration relay (IG2 relay) from the engine room relay block and junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1A-3 - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
10. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 2 INTEGRATION RELAY) Remove the No. 2 integration relay (IG2 relay) from the engine room relay block and junction block assembly. Disconnect the power management control ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A86-2 (IG2D) - 1A-2 Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 14
11. REPLACE NO. 2 INTEGRATION RELAY (EFI MAIN RELAY). Refer to «REMOVAL»(ref-553431-S08143288122013051700000)
12. REPLACE NO. 2 INTEGRATION RELAY (IG2 RELAY). Refer to «REMOVAL»(ref-553431-S08143288122013051700000)
13. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-553305-S38527219082013051700000)
14. CHECK SMART KEY SYSTEM (FOR START FUNCTION). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-553298-S08358460032013051700000)

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

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

Scheme 282

1. CHECK TERMINAL VOLTAGE (POWER SOURCE OF FUEL INJECTOR ASSEMBLY) Disconnect the fuel injector assembly connectors. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition D14-1 - Body ground Power switch on (IG) 11 to 14 V D15-1 - Body ground Power switch on (IG) 11 to 14 V D16-1 - Body ground Power switch on (IG) 11 to 14 V D17-1 - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Injector Assembly) NG --> See step 4 OK: Go to next step
2. INSPECT FUEL INJECTOR ASSEMBLY Inspect the fuel injector assembly. Refer to «INSPECTION»(ref-553438-S09714085492013051700000) . NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) Disconnect the fuel injector assembly connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D14-2 - D28-85 (#10) Always Below 1 ohms D15-2 - D28-84 (#20) Always Below 1 ohms D16-2 - D28-83 (#30) Always Below 1 ohms D17-2 - D28-82 (#40) Always Below 1 ohms D14-2 or D28-85 (#10) - Body ground Always 10 ohms or higher D15-2 or D28-84 (#20) - Body ground Always 10 ohms or higher D16-2 or D28-83 (#30) - Body ground Always 10 ohms or higher D17-2 or D28-82 (#40) - Body ground Always 10 ohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 6
4. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY (IG2 RELAY) - FUEL INJECTOR ASSEMBLY) Disconnect the fuel injector assembly connectors. Remove the No. 2 integration relay (IG2 relay) from the engine room relay block and junction block assembly. Disconnect the No. 2 integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition D14-1 - 1A-4 Always Below 1 ohms D15-1 - 1A-4 Always Below 1 ohms D16-1 - 1A-4 Always Below 1 ohms D17-1 - 1A-4 Always Below 1 ohms D14-1 or 1A-4 - Body ground Always 10 kohms or higher D15-1 or 1A-4 - Body ground Always 10 kohms or higher D16-1 or 1A-4 - Body ground Always 10 kohms or higher D17-1 or 1A-4 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
5. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-553438-S38272280762013051700000)
6. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-553305-S38527219082013051700000)
7. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-553432-S39174371242013051700000)

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