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Engine Control (Sfi) System (Diagnostic Codes (P2102-U0293) & Circuit Tests) (Except Phv): Diagnosis Toyota Prius III

Testing & Diagnostics 55 illustrations ~12702 words

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.

Scheme 162

Scheme 162: PROCEDURE
Scheme 162: PROCEDURE

Scheme 163

Scheme 163
Scheme 163
  1. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Disconnect the throttle 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 Callouts For (Scheme 162) *1 Component without harness connected (Throttle Body Assembly) Reconnect the throttle body assembly connector. NG --> See step 5 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (THROTTLE BODY ASSEMBLY - ECM) Disconnect the throttle 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 D4-2 (M+) - D28-21 (M+) Always Below 1 ohms D4-1 (M-) - D28-20 (M-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D4-2 (M+) or D28-21 (M+) - Body ground Always 10 kohms or higher D4-1 (M-) or D28-20 (M-) - Body ground Always 10 kohms or higher Callouts For (Scheme 163) *1 Front view of wire harness connector (to Throttle Body Assembly) *2 Front view of wire harness connector (to ECM) Reconnect the ECM connector. Reconnect the throttle body assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE BODY ASSEMBLY - ECM) OK: Go to next step
  3. INSPECT THROTTLE 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 BODY ASSEMBLY OK: Go to next step
  4. INSPECT THROTTLE 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 BODY ASSEMBLY. Refer to «REMOVAL»(ref-393185-S27458206012011040700000)
  6. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)

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.

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 164

Scheme 164: PROCEDURE
Scheme 164: PROCEDURE
  1. READ VALUE USING TECHSTREAM (+BM VOLTAGE) Connect the Techstream to the DLC3. Turn the power switch on (IG). 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 A57-3 (+BM) - Body ground Always 11 to 14 V Callouts For (Scheme 164) *1 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 D28-19 (ME01) - Body ground Always Below 1 ohms D28-104 (E1) - Body ground Always Below 1 ohms Reconnect the ECM connectors. 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-393183-S06096913442011040700000)
  4. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)

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 165

Scheme 165: PROCEDURE
Scheme 165: PROCEDURE
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119) 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. Result Result Proceed to DTC P2119 is output A DTC P2119 and other DTCs are output B HINT: If any DTCs other than P2119 are output, troubleshoot those DTCs first. B --> See step 5 A: Go to next step
  2. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Disconnect the throttle 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 Callouts For (Scheme 165) *1 Component without harness connected (Throttle Body Assembly) Reconnect the throttle body assembly connector. NG --> See step 6 OK: Go to next step
  3. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000). NEXT: Go to next step
  4. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) 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-393183-S13119469612011040700000). Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Allow the engine to idle for 20 seconds or more. Fully depress and release the accelerator pedal 3 times quickly. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. HINT: The output voltage of the throttle position sensor can be checked using the Techstream. Variations in the output voltage indicate that the throttle actuator is in operation. To check the output voltage using the Techstream, enter the following menus: Powertrain / Engine and ECT / Data List / Throttle Position No. 1. Result Result Proceed to DTC is not output A DTC P2119 is output B B --> See step 6 A --> END
  5. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-393183-S20320380732011040700000)
  6. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-393185-S27458206012011040700000)

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 power switch on (IG) and turn the Techstream on.
  3. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
  4. Start the engine.
  5. Turn the Techstream on.
  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) 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.
Techstream Display (Sensor)Injection VolumeStatusVoltage
AFS Voltage B1S1 (Air fuel ratio)+25%RichLess than 3.1 V
AFS Voltage B1S1 (Air fuel ratio)12.5%LeanMore than 3.4 V
O2S B1S2 (Heated oxygen)+25%RichMore than 0.55 V
O2S B1S2 (Heated oxygen)12.5%LeanLess than 0.4 V

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)

Scheme 166

Scheme 166
Scheme 166

Scheme 167

Scheme 167
Scheme 167

Scheme 168

Scheme 168
Scheme 168
  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 and O2S B1S2.

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.

Scheme 169

Scheme 169: PROCEDURE
Scheme 169: PROCEDURE

Scheme 170

Scheme 170
Scheme 170
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195 OR P2196) 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. Result Result Proceed to DTC P2195 or P2196 is output A DTC P2195 or P2196 and other DTCs are output B HINT: If any DTCs other than P2195 and P2196 are output, troubleshoot those DTCs first. B --> See step 29 A: Go to next step
  2. CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST Has the vehicle run out of fuel in the past? NO --> See step 3 YES --> DTC CAUSED BY RUNNING OUT OF FUEL
  3. READ VALUE USING TECHSTREAM (TEST VALUE OF AIR FUEL RATIO SENSOR) 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-393183-S13119469612011040700000). Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Allow the vehicle to drive in accordance with the drive pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor / Status 2. Check that the Status 2 of O2 Sensor is Complete. If the status is still Incomplete, perform the drive pattern increasing the vehicle speed and using the second gear to decelerate the vehicle. Enter the following menus: Powertrain / Engine and ECT / Monitor / O2 Sensor / Details / RANGE B1 S1. Check the test value of the air fuel ratio sensor output current during fuel-cut. Result Result Proceed to Within normal range (1.57 mA or higher, and below 3.6 mA) A Outside normal range (Below 1.57 mA, or 3.6 mA or higher) B B --> See step 26 A: Go to next step
  4. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine. Warm up the air fuel ratio sensor at an engine speed of 2500 rpm for 90 seconds. Enter the following menus: Powertrain / Engine and ECT / Data List / AFS Voltage B1S1 and Engine Speed, then press the Record button. Check the air fuel ratio sensor voltage 3 times, when the engine is in each of the following conditions: (1) While idling (check for at least 30 seconds) (Step "A"). (2) At an engine speed of approximately 2500 rpm (without any sudden changes in engine speed) (Step "B"). (3) The engine speed is raised to 2500 rpm and then the accelerator pedal is quickly released so that the throttle valve is fully closed (Step "C"). Standard Voltage Condition Air Fuel Ratio Sensor Voltage Variation Reference Steps "A" and "B" Changes at approximately 3.3 V Between 3.1 V and 3.4 V Step "C" Increases to 3.8 V or higher This occurs during engine deceleration (when fuel-cut performed) HINT: For more information, see the diagrams below. HINT: If the output voltage of the air fuel ratio sensor remains at approximately 3.3 V (see Malfunction Condition diagram) under any conditions, including those above, the air fuel ratio sensor may have an open circuit. (This will also happen if the air fuel ratio sensor heater has an open circuit.) If the output voltage of the air fuel ratio sensor remains at either approximately 3.8 V or higher, or below 2.8 V (see Malfunction Condition diagram) under any conditions, including those above, the air fuel ratio sensor may have a short circuit. The ECM stops fuel injection (fuel cut) during engine deceleration. This causes a lean condition and results in a momentary increase in the air fuel ratio sensor output voltage. When the vehicle is driven: The output voltage of the air fuel ratio sensor may be below 2.8 V during fuel enrichment. For the vehicle, this translates to a sudden increase in speed with the accelerator pedal fully depressed when trying to overtake another vehicle. The air fuel ratio sensor is functioning normally. The air fuel ratio sensor is a current output element; therefore, the current is converted into a voltage inside the ECM. Measuring the voltage at the connectors of the air fuel ratio sensor or ECM will show a constant voltage result. NG --> See step 14 OK: Go to next step
  5. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
  6. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195 OR P2196) 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 / Pending. Read the Pending DTCs. Result Result Proceed to DTC P2195 or P2196 is output A DTC is not output B B --> See step 33 A: Go to next step
  7. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-393185-S15352357012011040700000). NEXT: Go to next step
  8. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
  9. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195 OR P2196) 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 / Pending. Read the Pending DTCs. Result Result Proceed to DTC P2195 or P2196 is output A DTC is not output B B --> END A: Go to next step
  10. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position when Throttle Idle Position is ON in Data List. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. Result Result Proceed to Outside of standard range A Within standard range B B --> See step 12 A: Go to next step
  11. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-393178-S00297409822011040700000). Check if the EGR valve is stuck open. OK EGR valve is tightly closed. Reinstall the EGR valve assembly. Refer to «INSTALLATION»(ref-393178-S33053900042011040700000). NG --> See step 34 OK: Go to next step
  12. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000). NEXT: Go to next step
  13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED 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-393183-S13119469612011040700000). Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). 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: P2195 or P2196. Check the DTC judgment result. NEXT --> END
  14. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE). Refer to «PROCEDURE - Step 1»(ref-393191-S40156660062011040700000) NG --> See step 30 OK: Go to next step
  15. 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 D24-1 (HA1A) - D28-18 (HA1A) Always Below 1 ohms D24-3 (A1A+) - D28-103 (A1A+) D24-4 (A1A-) - D28-126 (A1A-) Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D24-1 (HA1A) or D28-18 (HA1A) - Body ground Always 10 kohms or higher D24-3 (A1A+) or D28-103 (A1A+) - Body ground D24-4 (A1A-) or D28-126 (A1A-) - Body ground Callouts For (Scheme 167) *1 Front view of wire harness connector (to Air Fuel Ratio Sensor) *2 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
  16. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION»(ref-393188-S17081193942011040700000). OK No leaks from the intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
  17. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-393193-S00724245252011040700000). NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
  18. INSPECT FUEL INJECTOR ASSEMBLY Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-393187-S29117220602011040700000). NG --> See step 31 OK: Go to next step
  19. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-393185-S15352357012011040700000). NEXT: Go to next step
  20. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
  21. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195 OR P2196) 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 / Pending. Read the Pending DTCs. Result Result Proceed to DTC P2195 or P2196 is output A DTC is not output B B --> END A: Go to next step
  22. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more. HINT: The A/C switch and all accessory switches should be off. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm the Throttle Idle Position is ON and check the engine idling condition and MAP values in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. Do not open the EGR valve 30 steps or more during the Active Test. OK MAP and idling condition change in response to EGR step position when Throttle Idle Position is ON in Data List. Standard - EGR Step Position (Active Test) 0 Steps 0 to 30 Steps Idling condition Steady idling Idling changes from steady to rough idling MAP (Data List) MAP value is 20 to 40 kPa (150 to 300 mmHg) (EGR valve is fully closed) MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed HINT: During Active Test, if the idling condition does not change in response to EGR step position, then there is probably a malfunction in the EGR valve. Result Result Proceed to Outside of standard range A Within standard range B B --> See step 24 A: Go to next step
  23. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-393178-S00297409822011040700000). Check if the EGR valve is stuck open. OK EGR valve is tightly closed. Reinstall the EGR valve assembly. Refer to «INSTALLATION»(ref-393178-S33053900042011040700000). NG --> See step 34 OK: Go to next step
  24. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000). NEXT: Go to next step
  25. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED 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-393183-S13119469612011040700000). Turn the power switch off and wait for 30 seconds. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). 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: P2195 or P2196. Check the DTC judgment result. NEXT --> END
  26. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-393185-S15352357012011040700000). NEXT: Go to next step
  27. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Clear the DTCs. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
  28. CHECK WHETHER DTC OUTPUT RECURS (DTC P2195 OR P2196) 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 / Pending. Read the Pending DTCs. Result Result Proceed to DTC is not output A DTC P2195 or P2196 is output B B --> See step 32 A --> See step 33
  29. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-393183-S20320380732011040700000)
  30. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-393185-S15352357012011040700000)
  31. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-393187-S06360802702011040700000)
  32. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)
  33. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-393183-S06096913442011040700000)
  34. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-393178-S00297409822011040700000)

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 power switch on (IG) and turn the Techstream on.
  3. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
  4. Start the engine.
  5. Warm up the engine at 2500 rpm for approximately 90 seconds.
  6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor.
  7. Perform Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume).
  8. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2) 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.
Techstream Display (Sensor)Injection VolumeStatusVoltage
AFS Voltage B1S1 (Air fuel ratio)+25%RichLess than 3.1 V
AFS Voltage B1S1 (Air fuel ratio)12.5%LeanMore than 3.4 V
O2S B1S2 (Heated oxygen)+25%RichMore than 0.55 V
O2S B1S2 (Heated oxygen)12.5%LeanLess than 0.4 V

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.

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.

DTC SUMMARY

DTC No.Monitoring ItemDTC Detection ConditionTrouble AreaDetection TimingDetection Logic
P2420Vent valve stuck open (vent)The following condition is met during key-off EVAP monitor EVAP pressure change when vent valve is closed (ON) less than 2.3 mmHgCanister pump module (0.02 inch orifice, vacuum pump, vent valve) Connector/wire harness (canister pump module - ECM) ECMPower switch off2 trip

HINT

The vent valve is built into the canister pump module.

Refer to the EVAP System . Refer to INSPECTION PROCEDURE .

DTC No.Monitoring ItemMalfunction Detection ConditionTrouble AreaDetection TimingDetection Logic
P2610Soak timer (built into ECM)ECM internal malfunctionECMEngine running2 trip

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. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine. 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 is operating (vibrating). OK The engine water pump 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 (Check for Open) 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 Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 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 Callouts For see scheme 30 *1 Front view of wire harness connector (to Engine Water Pump Assembly) *2 Front view of wire harness connector (to ECM) Reconnect the engine water pump assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE WATER PUMP ASSEMBLY - ECM) OK: Go to next step
  3. CHECK ECM (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 Switch Condition Specified Condition D13-2 (NWP) - Body ground Power switch on (IG) 11 to 14 V Callouts For see scheme 31 *1 Front view of wire harness connector (to Engine Water Pump Assembly) Reconnect the engine water pump assembly connector. NG --> See step 14 OK --> REPLACE ENGINE WATER PUMP ASSEMBLY
  4. CHECK ENGINE WATER PUMP ASSEMBLY (POWER SOURCE) 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 Switch Condition Specified Condition D13-1 (+B) - Body ground Power switch on (IG) 11 to 14 V Callouts For see scheme 32 *1 Front view of wire harness connector (to Engine Water Pump Assembly) Reconnect the engine water pump assembly connector. NG --> See step 10 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 (Check for Open) Tester Connection Switch Condition Specified Condition D13-5 (PGND) - Body ground Always Below 1 ohms Callouts For see scheme 33 *1 Front view of wire harness connector (to Engine Water Pump Assembly) Reconnect the engine water pump assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE WATER PUMP ASSEMBLY - BODY GROUND) 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 (Check for Open) 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 Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 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 Callouts For see scheme 34 *1 Front view of wire harness connector (to Engine Water Pump Assembly) *2 Front view of wire harness connector (to ECM) Reconnect the engine water pump assembly connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE WATER PUMP ASSEMBLY - ECM) OK: Go to next step
  7. REPLACE ENGINE WATER PUMP ASSEMBLY Replace the engine water pump assembly. Refer to «REMOVAL»(ref-393175-S19440219212011040700000). 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. Turn the Techstream on. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). 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 9
  9. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)
  10. INSPECT ENG W/P RELAY Remove the ENG W/P 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 between terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage applied between terminals 1 and 2 Below 1 ohms Reinstall the ENG W/P relay to the engine room relay block. NG --> REPLACE ENG W/P RELAY OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (ENG W/P RELAY - ENGINE WATER PUMP ASSEMBLY) Remove the ENG W/P relay from the engine room relay block. Disconnect the engine water pump assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition ENG W/P relay terminal 5 - D13-1 (+B) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition ENG W/P relay terminal 5 or D13-1 (+B) - Body ground Always 10 kohms or higher Callouts For (Scheme 171) *1 Engine Room Relay Block *2 Front view of wire harness connector (to Engine Water Pump Assembly) Reinstall the ENG W/P relay to the engine room relay block. Reconnect the engine water pump assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENG W/P RELAY - ENGINE WATER PUMP ASSEMBLY) OK: Go to next step
  12. CHECK ENG W/P RELAY (POWER SOURCE) Remove the ENG W/P relay from the engine room relay block. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition ENG W/P relay terminal 3 - Body ground Always 11 to 14 V Callouts For (Scheme 172) *1 Engine Room Relay Block Reinstall the ENG W/P relay to the engine room relay block. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENG W/P RELAY - BATTERY) OK: Go to next step
  13. CHECK HARNESS AND CONNECTOR (ENG W/P RELAY - BODY GROUND) Remove the ENG W/P 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 Switch Condition Specified Condition ENG W/P relay terminal 1 - Body ground Always Below 1 ohms Callouts For (Scheme 173) *1 Engine Room Relay Block Reinstall the ENG W/P relay to the engine room relay block. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENG W/P RELAY - BODY GROUND) OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENG W/P RELAY - EFI MAIN RELAY)
  14. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)

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 power switch on (IG) and turn the Techstream on.
  3. Put the engine in inspection mode . Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000) .
  4. Start the engine.
  5. Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds.
  6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor.
  7. Perform the Active Test operation with the engine idling (press the RIGHT or LEFT button to change the fuel injection volume).
  8. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2) 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.
Techstream Display (Sensor)Injection VolumeStatusVoltage
AFS Voltage B1S1 (Air fuel ratio)+25%RichLess than 3.1 V
AFS Voltage B1S1 (Air fuel ratio)12.5%LeanMore than 3.4 V
O2S B1S2 (Heated oxygen)+25%RichMore than 0.55 V
O2S B1S2 (Heated oxygen)12.5%LeanLess than 0.4 V

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 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 and O2S B1S2.

HINT

  1. DTC P2A00 may also be set when the air fuel ratio remains rich or lean.
  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. 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 (77°F) or approximately 30 minutes when the battery temperature is 0°C (32°F).
  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 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.

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. The Techstream is required to conduct the following diagnostic troubleshooting procedure.

HINT

  1. Using Techstream monitor results enables the EVAP (evaporative emission) system to be confirmed.
  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.

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  1. CONFIRM DTC Turn the power switch off and wait for 10 seconds. Turn the power switch on (IG). Turn the power switch off and wait for 10 seconds. 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. Confirm DTCs and freeze frame data. If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below. NOTE: If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored. NEXT: Go to next step
  2. PERFORM EVAPORATIVE SYSTEM CHECK (AUTO OPERATION) NOTE: The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. 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 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 more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F). 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-393183-S13119469612011040700000). 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 by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. HINT: If no pending DTCs are displayed, perform the Monitor Confirmation (see "Diagnostic Help" menu). After this confirmation, check for pending DTCs. If no DTCs are displayed, the EVAP system is normal. NEXT: Go to next step
  3. PERFORM EVAPORATIVE SYSTEM CHECK (MANUAL OPERATION) NOTE: In the Evaporative System Check (Manual Mode), perform the series of 5 Evaporative System Check steps manually using the Techstream. 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 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 more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F). 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-393183-S13119469612011040700000). Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Manual Mode. NEXT: Go to next step
  4. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/5) Check the EVAP pressure in step 1/5. Result DTC* Test Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure Not yet determined A P0451 EVAP pressure fluctuates by +/-0.3 kPa (2.25 mmHg) or more Canister pressure sensor signal noise B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. B --> See step 29 A: Go to next step
  5. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/5 TO 2/5) Check the EVAP pressure in steps 1/5 and 2/5. Result DTC* Test Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure during step 1/5. Then decreases to reference pressure Not yet determined A P2402 Small difference between EVAP pressures during steps 1/5 and 2/5 Leak detection pump stuck ON B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. HINT: The first reference pressure is the value determined in step 2/5. B --> See step 22 A: Go to next step
  6. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/5) HINT: Make a note of the pressures checked in steps A and B below. (a) Check the EVAP pressure 4 seconds after the leak detection pump is activated* (Step A). *: The leak detection pump begins to operate as step 1/5 finishes and step 2/5 starts. (b) Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure (Step B). Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure in step B between -4.85 kPa and -1.057 kPa (-36.38 mmHg and -7.93 mmHg) Not yet determined A P043F and P2401 EVAP pressure in step B -1.057 kPa (-7.93 mmHg) or more Reference orifice high-flow Leak detection pump stuck OFF B P043E EVAP pressure in step B below -4.85 kPa (-36.38 mmHg) Reference orifice clogged C P2419 EVAP pressure in step A more than -1.057 kPa (-7.93 mmHg) Vent valve stuck closed D *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. D --> See step 20 C --> See step 29 B --> See step 11 A: Go to next step
  7. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/5 TO 3/5) Check the EVAP pressure in step 3/5. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 2/5 to step 3/5 Not yet determined A P2420 No variation in EVAP pressure despite proceeding from step 2/5 to step 3/5 Vent valve stuck open (vent) B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. B --> See step 19 A: Go to next step
  8. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/5) Wait until the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) for 30 seconds. Measure the EVAP pressure and record it. HINT: A few minutes are required for the EVAP pressure to become saturated. When there is little fuel in the fuel tank, it takes up to 15 minutes. NEXT: Go to next step
  9. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 4/5) Check the EVAP pressure in step 4/5. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Not yet determined A P0441 EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Problems in EVAP hose between purge VSV and intake manifold B P0441 Variation in EVAP pressure less than 0.3 kPa (2.25 mmHg) for 10 seconds, after proceeding from step 3/5 to step 4/5 Purge VSV stuck closed C *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. C --> See step 12 B --> See step 15 A: Go to next step
  10. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 5/5) Check the EVAP pressure in step 5/5. Compare the EVAP pressure in step 3/5 and the second reference pressure (step 5/5). Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure from step 3/5 lower than second reference pressure (step 5/5) Not yet determined (no leakage from EVAP system) A P0441 and P0455 EVAP pressure from step 3/5 higher than [second reference pressure (step 5/5) x 0.2] Purge VSV stuck open EVAP gross leak B P0456 EVAP pressure from step 3/5 higher than second reference pressure (step 5/5) EVAP small leak B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. B --> See step 12 A --> See step 35
  11. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/5) Check the EVAP pressure in step 3/5. Result DTC* Test Result Suspected Trouble Area Proceed to P043F EVAP pressure less than [reference pressure] measured in step 2/5 Reference orifice high-flow A P2401 EVAP pressure almost same as [reference pressure] measured in step 2/5 Leak detection pump stuck off B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. HINT: The first reference pressure is the value determined in step 2/5. B --> See step 22 A --> See step 29
  12. PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for EVAP Control. Disconnect the hose (connected to the canister) from the purge VSV. Callouts For (Scheme 178) *1 Purge VSV *2 Hose (to canister) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). 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 Test Result Suspected Trouble Area Proceed to No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal A Suction applied when purge VSV turned off Purge VSV stuck open B No suction when purge VSV turned on Purge VSV stuck closed Problems with EVAP hose between purge VSV and intake manifold C Reconnect the hose. C --> See step 15 B --> See step 14 A: Go to next step
  13. CHECK FUEL TANK CAP ASSEMBLY 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 Techstream. 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 (24 to 28 mmHg) using an EVAP tester pump. Seal the adapter and wait for 2 minutes. Check the pressure. If the pressure is 2 kPa (15 mmHg) or more, the fuel cap is normal. Result Test 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 No fuel cap - C Reinstall the fuel cap. C --> See step 27 B --> See step 26 A --> See step 28
  14. INSPECT PURGE VSV Turn the power switch off. Disconnect the purge VSV connector. Callouts For (Scheme 179) *1 Hose (to canister) *2 Connector *3 Purge VSV Disconnect the hose (connected to the canister) from the purge VSV. Turn the power switch on (IG). Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine. Use your finger to confirm that the purge VSV has no suction. Result Test Result Suspected Trouble Area Proceed to No suction ECM A Suction applied Purge VSV B Reconnect the purge VSV connector. Reconnect the hose. B --> See step 30 A --> See step 34
  15. CHECK EVAP HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY) Disconnect the hose (connected to the intake manifold sub-assembly) from the purge VSV. *1 Purge VSV *2 Hose (to Intake Manifold Sub-assembly) Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine. Use your finger to confirm that the hose has suction. Result Test Result Suspected Trouble Area Proceed to Suction applied EVAP hose between purge VSV and intake air surge tank assembly normal A No suction Intake manifold port EVAP hose between purge VSV and intake manifold sub-assembly B Reconnect the hose. B --> See step 25 A: Go to next step
  16. INSPECT PURGE VSV Remove the purge VSV. Apply battery voltage to the terminals of the purge VSV. Callouts For (Scheme 181) *1 Purge VSV Using an air gun, confirm that air flows from port A to port B. Result Test Result Condition Suspected Trouble Area Proceed to Air flows Battery voltage is applied to purge VSV terminals Purge VSV normal A No air flow Battery voltage is applied to purge VSV terminals Purge VSV B Install the purge VSV. B --> See step 30 A: Go to next step
  17. 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. Callouts For (Scheme 182) *1 Front view of wire harness connector (to Purge VSV) Result Tester Connection Switch 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 ECM B Reconnect the purge VSV connector. B --> See step 31 A: Go to next step
  18. 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 (Check for Open) Tester Connection Condition Specified Condition D11-1 - D28-28 (PRG) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition D11-1 or D28-28 (PRG) - Body ground Always 10 kohms or higher Callouts For (Scheme 183) *1 Front view of wire harness connector (to Purge VSV) *2 Front view of wire harness connector (to ECM) Reconnect the purge VSV connector. Reconnect the ECM connector. NG --> See step 31 OK --> See step 34
  19. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) Turn the power switch off. Disconnect the canister pump module connector. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Result Tester Connection Switch Condition Specified Condition Suspected Trouble Area Proceed to S16-5 (VLVB) - Body ground Power switch on (IG) 11 to 14 V Wire harness between vent valve and ECM Vent valve ECM A Below 3 V Power source wire harness of vent valve B Callouts For (Scheme 184) *1 Front view of wire harness connector (to Canister Pump Module) Reconnect the canister pump module connector. B --> See step 31 A: Go to next step
  20. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Turn the power switch off. Disconnect the canister pump module connector. Apply battery voltage to the VLVB and VGND terminals of the canister pump module. Touch the canister pump module to confirm the vent valve operation. Callouts For (Scheme 185) *1 Component without harness connected (Canister Pump Module) Result Condition Test Result Suspected Trouble Area Proceed to Apply battery voltage to terminals S16-5 (VLVB) and S16-1 (VGND) Operating 1. Wire harness between vent valve and ECM 2. ECM A Not operating Vent valve B Reconnect the canister pump module connector. B --> See step 29 A: Go to next step
  21. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) Disconnect the ECM connector. Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Result Tester Connection Condition Test Result Suspected Trouble Area Proceed to A57-42 (VPMP) - S16-1 (VGND) Always Below 1 ohms ECM A 10 kohms or higher Wire harness between ECM and canister pump module B Callouts For (Scheme 186) *1 Front view of wire harness connector (to ECM) *2 Front view of wire harness connector (to Canister Pump Module) Reconnect the ECM connector. Reconnect the canister pump module connector. B --> See step 31 A --> See step 34
  22. PERFORM ACTIVE TEST USING TECHSTREAM (VACUUM PUMP) Turn the power switch off. Disconnect the canister pump module connector. Turn the power switch on (IG). Enter the following menus: Powertrain / Engine / Active Test / Activate the Vacuum Pump. Measure the voltage according to the value(s) in the table below. Result Tester Connection Condition Test Result Suspected Trouble Area Proceed to S16-3 (MTRB) - Body ground Leak detection pump on and off (Active Test ON and OFF) Below 3 V when OFF 11 to 14 V when ON Wire harness between leak detection pump and body ground Leak detection pump A Below 3 V when OFF and ON Wire harness between leak detection pump and ECM ECM B 11 to 14 V when OFF and ON ECM C Callouts For (Scheme 187) *1 Front view of wire harness connector (to Canister Pump Module) C --> See step 34 B --> See step 24 A: Go to next step
  23. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) Turn the power switch off. Disconnect the canister pump module connector. Measure the resistance according to the value(s) in the table below. Result Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to S16-4 (MGND) - Body ground Always Below 1 ohms Leak detection pump A 10 kohms or higher Wire harness between canister pump module and body ground B Callouts For (Scheme 188) *1 Front view of wire harness connector (to Canister Pump Module) Reconnect the canister pump module connector. B --> See step 31 A --> See step 29
  24. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) Turn the power switch off. Disconnect the canister pump module connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Result Tester Connection Condition Test Result Suspected Trouble Area Proceed to A57-34 (MPMP) - S16-3 (MTRB) Always Below 1 ohms ECM A 10 kohms or higher Wire harness between ECM and canister pump module B Callouts For (Scheme 189) *1 Front view of wire harness connector (to ECM) *2 Front view of wire harness connector (to Canister Pump Module) Reconnect the canister pump module connector. Reconnect the ECM connector. B --> See step 31 A --> See step 34
  25. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) Stop the engine. Disconnect the EVAP hose from the intake manifold. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(ref-393046-S20890913792011040700000). Start the engine. Use your finger to confirm that the port of the intake manifold has suction. Result Test Result Suspected Trouble Area Proceed to Suction applied EVAP hose between intake manifold and purge VSV A No suction Intake manifold B Reconnect the EVAP hose. B --> See step 33 A --> See step 32
  26. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY HINT: When reinstalling the fuel cap, tighten it until a few click sounds are heard. When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install it until a few click sounds are heard. NEXT --> See step 36
  27. REPLACE FUEL TANK CAP ASSEMBLY HINT: When installing the fuel cap, tighten it until a few click sounds are heard. NEXT --> See step 36
  28. LOCATE EVAP LEAK PART Disconnect the vent hose. *1 Fuel Tank *2 Canister *3 Canister Filter *4 Fuel Cap *5 Disconnect the vent hose here *6 No. 2 Canister Filter Connect the EVAP pressure tester tool to the canister pump module with the adapter. *1 Canister Pump Module *2 Adapter *3 EVAP Pressure Tester Tool - - Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg). Apply soapy water to the piping and connecting parts of the EVAP system. Look for areas where bubbles appear. This indicates the leak point. Repair or replace the leak point. HINT: Disconnect the hose between the canister and fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks. NEXT --> See step 36
  29. REPLACE CANISTER Replace the canister. Refer to «REMOVAL»(ref-393178-S22090145052011040700000). NOTE: When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. *1 Fuel Tank Vent Hose *2 Air Inlet Port *3 Vent Hose *4 Inspection Area (check for disconnection and/or cracks) *5 Fuel Tank - - NEXT --> See step 36
  30. REPLACE PURGE VSV Replace the purge VSV. Refer to «REMOVAL»(ref-393178-S10024292252011040700000). NEXT --> See step 36
  31. REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> See step 36
  32. REPLACE EVAP HOSE (INTAKE AIR SURGE TANK ASSEMBLY - PURGE VSV) NEXT --> See step 36
  33. INSPECT 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 --> See step 36
  34. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000). NEXT --> See step 36
  35. REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in. NEXT: Go to next step
  36. PERFORM EVAPORATIVE SYSTEM CHECK (AUTO OPERATION) NOTE: The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. 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 fuel tank leak check unavailable. 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 an Evaporative System Check, keep the fuel temperature below 35°C (95°F). 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-393183-S13119469612011040700000). 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 by entering the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. HINT: If no pending DTCs are found, the repair has been successfully completed. NEXT --> COMPLETED

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

Scheme 202

Scheme 202: PROCEDURE
Scheme 202: PROCEDURE

Scheme 203

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Scheme 210

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Scheme 211

Scheme 211
Scheme 211
  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 Callouts For (Scheme 194) *1 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 power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A57-28 (IGSW) - Body ground Power switch on (IG) 11 to 14 V Callouts For (Scheme 195) *1 Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> See step 8 OK: Go to next step
  3. INSPECT INTEGRATION No. 2 RELAY (EFI MAIN RELAY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1C-1 - 1B-4 No battery voltage applied between terminals 1B-2 and 1B-3 10 kohms or higher Battery voltage applied between terminals 1B-2 and 1B-3 Below 1 ohms Callouts For (Scheme 196) *1 Component without harness connected (Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. NG --> See step 14 OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - ECM) Remove the integration relay from the engine room relay block. Disconnect the integration relay 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 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 Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1B-4 or A57-1 (+B2) - Body ground Always 10 kohms or higher 1B-4 or A57-2 (+B) - Body ground Always 10 kohms or higher 1B-2 or A57-6 (MREL) - Body ground Always 10 kohms or higher Callouts For (Scheme 197) *1 Front view of wire harness connector (to ECM) *2 Integration Relay *3 Front view of wire harness connector (to Integration Relay) - - Reconnect the ECM connector. Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - ECM) OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - BATTERY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Disconnect the negative battery terminal. Disconnect 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 1C-1 - Battery positive terminal Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1C-1 or Battery positive terminal - Body ground Always 10 kohms or higher Callouts For (Scheme 198) *1 Integration Relay *2 Front view of wire harness connector (to Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. Reconnect the positive battery terminal. Reconnect the negative battery terminal. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - BATTERY) OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - BODY GROUND) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. 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 Callouts For (Scheme 199) *1 Integration Relay *2 Front view of wire harness connector (to Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - BODY GROUND) OK --> See step 7
  7. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-393183-S00495152322011040700000)
  8. INSPECT INTEGRATION NO. 2 RELAY (IG2 RELAY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1C-1 - 1A-4 No battery voltage applied to terminals 1A-2 and 1A-3 10 kohms or higher Battery voltage applied to terminals 1A-2 and 1A-3 Below 1 ohms Callouts For (Scheme 200) *1 Component without harness connected (Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. NG --> See step 15 OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - ECM) Disconnect the ECM connector. Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1A-4 - A57-28 (IGSW) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1A-4 or A57-28 (IGSW) - Body ground Always 10 kohms or higher Callouts For (Scheme 201) *1 Front view of wire harness connector (to ECM) *2 Integration Relay *3 Front view of wire harness connector (to Integration Relay) - - Reconnect the ECM connector. Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - ECM) OK: Go to next step
  10. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - BATTERY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Disconnect the negative battery terminal. Disconnect 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 1C-1 - Battery positive terminal Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1C-1 or Battery positive terminal - Body ground Always 10 kohms or higher Callouts For see scheme 85 *1 Integration Relay *2 Front view of wire harness connector (to Integration Relay) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - BATTERY) OK: Go to next step
  11. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - BODY GROUND) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. 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 Callouts For (Scheme 202) *1 Integration Relay *2 Front view of wire harness connector (to Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - BODY GROUND) OK: Go to next step
  12. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INTEGRATION RELAY (IG2 RELAY)) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. 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 A22-2 (IG2D) - 1A-2 Always Below 1 ohms Callouts For (Scheme 203) *1 Front view of wire harness connector (to Power Management Control ECU) *2 Integration Relay *3 Front view of wire harness connector (to Integration Relay) - - Reconnect the integration relay connector. Reinstall the integration relay. Reconnect the power management control ECU connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - INTEGRATION RELAY (IG2 RELAY)) OK --> See step 13
  13. CHECK SMART KEY SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393051-S36877231232011040700000)
  14. REPLACE INTEGRATION No. 2 RELAY. Refer to «REMOVAL»(ref-393185-S23780280282011040700000)
  15. REPLACE INTEGRATION No. 2 RELAY (IG2 RELAY). Refer to «REMOVAL»(ref-393185-S23780280282011040700000)

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

Scheme 212

Scheme 212: PROCEDURE
Scheme 212: PROCEDURE

Scheme 213

Scheme 213
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Scheme 214

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Scheme 215

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Scheme 216

Scheme 216
Scheme 216
  1. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE C/OPN RELAY) 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 / Control the Fuel Pump / Speed. Check whether the fuel pump operation sound occurs when performing the Active Test on the Techstream. OK Fuel pump operating sound occurs. NG --> See step 2 OK --> See step 9
  2. INSPECT INTEGRATION No. 2 RELAY (C/OPN RELAY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1B-4 - 1B-8 No battery voltage applied to terminals 1B-6 and 1B-7 10 kohms or higher Battery voltage applied to terminals 1B-6 and 1B-7 Below 1 ohms Callouts For (Scheme 211) *1 Component without harness connected (Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. NG --> See step 10 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (C/OPN RELAY - ECM) Disconnect the ECM connector. Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1B-7 - A57-8 (FC) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1B-7 or A57-8 (FC) - Body ground Always 10 kohms or higher Callouts For see scheme 97 *1 Front view of wire harness connector (to ECM) *2 Integration Relay *3 Front view of wire harness connector (to Integration Relay) - - Reconnect the ECM connector. Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (C/OPN RELAY - ECM) OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (C/OPN RELAY - IG2 RELAY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1A-4 - 1B-6 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1A-4 or 1B-6 - Body ground Always 10 kohms or higher Callouts For see scheme 98 *1 Integration Relay *2 Front view of wire harness connector (to Integration Relay) Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (C/OPN RELAY - IG2 RELAY) OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (C/OPN RELAY - FUEL PUMP) Disconnect the fuel pump connector. Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition 1B-8 - R11-4 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 1B-8 or R11-4 - Body ground Always 10 kohms or higher Callouts For see scheme 99 *1 Front view of wire harness connector (to Fuel Pump) *2 Integration Relay *3 Front view of wire harness connector (to Integration Relay) - - Reconnect the fuel pump connector. Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (C/OPN RELAY - FUEL PUMP) OK: Go to next step
  6. 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 Tester Connection Condition Specified Condition R11-5 - Body ground Always Below 1 ohms Callouts For see scheme 100 *1 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
  7. INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION»(ref-393187-S07746128372011040700000). NG --> See step 11 OK: Go to next step
  8. CHECK ECM POWER SOURCE CIRCUIT Check the ECM power source circuit. Refer to «ECM Power Source Circuit»(ref-393184-S23344827292011040700000). NG --> REPAIR OR REPLACE ECM POWER SOURCE CIRCUIT OK --> See step 12
  9. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-393183-S00495152322011040700000)
  10. REPLACE INTEGRATION No. 2 RELAY (C/OPN RELAY). Refer to «REMOVAL»(ref-393185-S23780280282011040700000)
  11. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-393187-S39217571512011040700000)
  12. REPLACE ECM. Refer to «REMOVAL»(ref-393185-S12311789002011040700000)

More articles — Engine Control (Sfi) System (Diagnostic Codes (P2102-U0293) & Circuit Tests) (Except Phv)