Engine Control System (Diagnostic Codes (P0441 - U0293) & Circuit Tests) (Base): Diagnosis Toyota Prius Plug-in

DTC SUMMARY

INSPECTION PROCEDURE

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 57

Scheme 58

1. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR EVAP CONTROL) Connect the Techstream to the DLC3. Remove the canister side vacuum hose from the purge VSV. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-551389-S33941292062013051500000) . Start the engine. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the VSV for EVAP Control. When the purge VSV is operated using the Techstream, check whether the port of the purge VSV applies suction to your finger. OK Techstream Operation Specified Condition ON (Purge VSV is on) Purge VSV port applies suction to finger OFF (Purge VSV is off) Purge VSV port applies no suction to finger NG --> See step 2 OK --> See step 5
2. INSPECT PURGE VSV Inspect the purge VSV. Refer to «INSPECTION»(ref-551520-S12642545282013051500000) . NG --> See step 6 OK: Go to next step
3. INSPECT PURGE VSV (POWER SOURCE) Disconnect the purge VSV 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 D11-2 - Body ground Power switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (PURGE VSV - EFI MAIN RELAY) OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the purge VSV 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 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
5. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-551395-S19849788882013051500000)
6. REPLACE PURGE VSV. Refer to «REMOVAL»(ref-551520-S07353934732013051500000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-551525-S25737291822013051500000)

HINT

The canister pressure sensor is built into the canister pump module.

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 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.

Scheme 59

Scheme 60

1. CONFIRM DTC AND EVAP PRESSURE Connect the Techstream to the DLC3. Turn the power switch on (IG) (do not start the engine). 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 Pump. Read the EVAP (Evaporative Emission) pressure displayed on the Techstream. Result Display (DTC Output) Test Result Suspected Trouble Area Proceed to P0451 - Canister pressure sensor C P0452 Less than 42.11 kPa(abs) (315.867 mmHg(abs)) Wire harness/connector (ECM - canister pressure sensor) Canister pressure sensor Short in ECM circuit A P0453 More than 123.761 kPa(abs) (928.331 mmHg(abs)) Wire harness/connector (ECM - canister pressure sensor) Canister pressure sensor Open in ECM circuit B B --> See step 4 C --> See step 9 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Result Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to D28-114 (PPMP) - Body ground Always Below 10 ohms Wire harness/connector (ECM - canister pressure sensor) Short in canister pressure sensor circuit A 10 kohms or higher Wire harness/connector (ECM - canister pressure sensor) Short in ECM circuit B B --> See step 7 A: Go to next step
3. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 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 Specified Condition Suspected Trouble Area Proceed to D28-114 (PPMP) - Body ground Always 10 kohms or higher Short in canister pressure sensor circuit A Below 10 ohms Short in wire harness/connector (ECM - Canister pressure sensor) B A --> See step 5 B --> See step 6
4. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Disconnect the canister pump module 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 Switch Condition Specified Condition S16-6 (VCC) - Body ground Power switch on (IG) 4.5 to 5.5 V S16-7 (VOUT) - Body ground Power switch on (IG) 4.5 to 5.5 V Standard Resistance (Check for Open) Tester Connection Condition Specified Condition S16-8 (SGND) - Body ground Always Below 100 ohms TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - Result Test Result Suspected Trouble Area Proceed to Voltage and resistance within standard ranges Open in canister pressure sensor circuit A Voltage and resistance outside standard ranges Open in wire harness/connector (ECM - canister pressure sensor) B B --> See step 6 A: Go to next step
5. REPLACE CANISTER (CANISTER PUMP MODULE) Replace the canister. Refer to «REMOVAL»(ref-551520-S23418059692013051500000) . NOTE: When replacing the canister, check the canister pump module interior, canister interior, No. 1 canister interior, No. 2 canister 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 canister pump module to the No. 2 canister and the pipe from the air inlet port to the No. 2 canister; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior or No. 1 canister interior, replace the canister, No. 1 canister and canister pump module together. If liquids are present in the No. 2 canister interior, dry the No. 2 canister. Check for filter blockage in the canister and No. 1 canister. If the charcoal filter inside the canister or No. 1 canister is clogged, replace the canister and No. 1 canister together. Check for filter blockage in the canister air filter. If the canister air filter has blockages, replace the canister air filter. Check No. 2 canister blockage. If the No. 2 canister has blockages, replace the canister (No. 2 canister). TEXT IN ILLUSTRATION *1 Fuel Tank Vent Hose *2 Air Inlet Port *3 Vent Hose *4 Fuel Tank *5 No. 2 Canister *6 No. 1 Canister *7 Canister *8 Canister Air Filter *9 Canister Pump Module - - *a Inspection Area (Check for Disconnection and/or cracks) - - NEXT --> See step 8
6. REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM) 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-551525-S25737291822013051500000) . 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-551395-S24983050562013051500000) . 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: P0451, P0452 or P0453. 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
9. GO TO EVAP SYSTEM. Refer to «EVAP System»(ref-551526-S40557310962013051500000)

Refer to the EVAP System. Refer to EVAP System .

HINT

1. The following conditions may also cause DTC P0505 to be stored: The floor carpet overlapping slightly onto the accelerator pedal, causing the accelerator pedal to be slightly depressed and therefore the throttle valve position to be slightly open. The accelerator pedal being not fully released.
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 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.
3. Refer to "Data List / Active Test" [Engine Speed and ISC Learning Value]. Refer to «DATA LIST / ACTIVE TEST»(ref-551395-S10816740362013051500000) .

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.

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

HINT

1. DTC P050B may be set when the engine shows the symptom as listed below. If necessary, check the trouble area as listed below. Symptom Factor Trouble Area Low idle speed at engine cold. (immediately after engine start) Excessive engine friction Engine oil deterioration Rough idle at engine cold. (immediately after engine start) Abnormal combustion Fuel quality
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.

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.

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

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 61

1. CHECK ANY OTHER DTCS OUTPUT 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 P0607 and P0136, P0137 or P0138 are output A DTC P0607 is output B B --> See step 3 A: Go to next step
2. INSPECT DTC (P0136, P0137 OR P0138) Refer to the P0136, P0137 or P0138 flowchart. HINT: If P0136 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-551527-S03048495202013051500000) . Then proceed to "Inspect ECM". If P0137 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-551527-S03048495202013051500000) . Then proceed to "Inspect ECM". If P0138 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-551527-S03048495202013051500000) . Then proceed to "Inspect ECM". If DTC P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more). NEXT --> See step 6
3. CHECK FOR EXHAUST GAS LEAK 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-551389-S33941292062013051500000) . Allow the engine to idle and rev the engine. Check for exhaust gas leaks around the heated oxygen sensor. If any exhaust gas leaks are present, repair them and proceed to "Perform Confirmation Driving Pattern" 4 . If no exhaust gas leaks are present, proceed to "Perform Confirmation Driving Pattern". HINT: If no exhaust gas leaks are present, there may be a malfunction in the heated oxygen sensor circuit. If any exhaust gas leaks are present around the heated oxygen sensor, noise appears in the output voltage of the heated oxygen sensor. NEXT: Go to next step
4. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-551395-S24983050562013051500000) . Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-551389-S33941292062013051500000) . Start the engine. Warm up the engine until the engine coolant temperature becomes 75°C (167°F) or more. Perform the driving pattern. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. Accelerate the vehicle to 50 mph (80 km/h) and stop the vehicle. Drive the vehicle between 38 and 50 mph (60 and 80 km/h) for 5 minutes. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P0607 and P0136, P0137 or P0138 are output A Only P0607 is output B DTC is not output C B --> See step 7 C --> See step 6 A: Go to next step
5. INSPECT DTC (P0136, P0137 OR P0138) Refer to the P0136, P0137 or P0138 flowchart. HINT: If P0136 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-551527-S03048495202013051500000) . Then proceed to "Inspect ECM". If P0137 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-551527-S03048495202013051500000) . Then proceed to "Inspect ECM". If P0138 is output, troubleshoot for that DTC first. Refer to «INSPECTION PROCEDURE»(ref-551527-S03048495202013051500000) . Then proceed to "Inspect ECM". If DTC P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more). NEXT: Go to next step
6. INSPECT ECM Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-551395-S24983050562013051500000) . Stop the engine and wait for 30 minutes. Connect the Techstream to the DLC3. Turn the power switch on (IG) and turn the Techstream on. Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-551389-S33941292062013051500000) . Start the engine and allow it to idle for 2 minutes. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check the DTCs. Result Result Proceed to DTC is not output A DTC P0607 is output B B --> See step 7 A --> END
7. REPLACE ECM. Refer to «REMOVAL»(ref-551525-S25737291822013051500000)

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

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

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. There is a possibility that the DTC P062F is issued from the ECUs of the ECM and power management control ECU. Use Techstream to conduct a health check to confirm which ECU the DTC is issued from and then inspect the related system.

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

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

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.

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.

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 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.

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.

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. 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-551395-S10816740362013051500000) .

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 62

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 / Gas Throttle / +BM voltage. Read the value displayed on the Techstream. Result Result Proceed to Less than 4 V A 11 to 16 V B B --> See step 4 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (ECM - AUXILIARY 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 TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition D28-19 (ME01) - Body ground Always Below 1 ohms D28-104 (E1) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE ECM. Refer to «REMOVAL»(ref-551525-S25737291822013051500000)
4. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-551395-S19849788882013051500000)

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

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-551395-S10816740362013051500000) .
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. Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel ratio sensor.
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.
3. 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.
4. 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.
5. Sensor 1 refers to the sensor closest to the engine assembly.
6. Sensor 2 refers to the sensor farthest away from the engine assembly.

HINT

1. Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.
2. Sensor 1 refers to the sensor closest to the engine assembly.
3. Sensor 2 refers to the sensor farthest away from the engine assembly.
4. Refer to "Data List / Active Test" [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]. Refer to «DATA LIST / ACTIVE TEST»(ref-551395-S10816740362013051500000) .

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

HINT

1. Refer to "Data List / Active Test" [AFS Voltage B1S1]. Refer to «DATA LIST / ACTIVE TEST»(ref-551395-S10816740362013051500000) .
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.
3. Sensor 1 refer to the sensor closest to the engine assembly.
4. Sensor 2 refers to the sensor farthest away from the engine assembly.

HINT

The vent valve is built into the canister pump module.

Refer to the EVAP System. Refer to EVAP System .

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

HINT

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

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.

Scheme 63

Scheme 64

Scheme 65

Scheme 66

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 assembly and check that the pump 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 (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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR 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 TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Engine Water Pump Assembly) NG --> See step 14 OK --> See step 13
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 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 (Check for Open) 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 (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 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-551517-S13800908242013051500000) . 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 (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-551389-S33941292062013051500000) . 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 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 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 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. 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
11. 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 Condition Specified Condition ENG W/P relay terminal 3 - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Engine Room Relay Block *2 ENG W/P Relay NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENG W/P RELAY - AUXILIARY BATTERY) 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. 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 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-551517-S13800908242013051500000)
14. REPLACE ECM. Refer to «REMOVAL»(ref-551525-S25737291822013051500000)

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, 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 HV 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 the 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) and 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 stored, the malfunctioning area can be determined using the table below. NOTE: If the reference pressure difference between the first and second checks is more than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402, and P2419) will all be stored. NEXT: Go to next step
2. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) NOTE: The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the Techstream. It takes a maximum of approximately 24 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 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-551395-S24983050562013051500000) . 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 Confirmation Driving Pattern. 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 MODE) NOTE: In the Evaporative System Check (Manual Mode), the series of 6 Evaporative System Check steps are performed manually using the Techstream. 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 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-551395-S24983050562013051500000) . 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 1/6) Check the EVAP pressure in step 1/6. RESULT DTC *1 Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure Not yet determined A P0451 EVAP pressure fluctuates by +/-0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher Canister pressure sensor signal noise B (P0452 or P0453) *2 EVAP pressure is less than 42.11 kPa(abs) [315.867 mmHg(abs)], or higher than 123.761kPa(abs) [928.331 mmHg(abs)] EVAP pressure deviates +/-10 kPa [+/-75 mmHg] from actual atmosphere pressure *3 Canister pressure sensor or its circuit has malfunction C *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. *2: If the canister pressure sensor circuit has an open or short, DTC P0452 or P0453 is stored 0.5 seconds after the power switch is turned on (IG). HINT: *3: Canister pressure sensor standard output range is 70 to 111 kPa(abs) [525 to 833 mmHg(abs)]. This varies by weather. B --> See step 38 C --> See step 12 A: Go to next step
5. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 1/6 TO 2/6) Check the EVAP pressure in steps 1/6 and 2/6. RESULT DTC* Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure during step 1/6. Then decreases to reference pressure Not yet determined A P2402 Small difference between EVAP pressures during steps 1/6 and 2/6 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 2/6. B --> See step 31 A: Go to next step
6. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/6) HINT: Make a note of the pressures checked in inspection items (A) and (B) below. Check the EVAP pressure 4 seconds after the leak detection pump is activated*1 (A). *1: The leak detection pump begins to operate as step 1/6 finishes and step 2/6 starts. Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure (B). RESULT DTC*2 Result Suspected Trouble Area Proceed to - EVAP pressure in inspection item (B) is between -4.85 kPa(gauge) and -1.057 kPa(gauge) [-36.375 mmHg(gauge) and -7.928 mmHg(gauge)] Not yet determined A P043F and P2401 EVAP pressure in inspection item (B) is -1.057 kPa(gauge) [-7.928 mmHg(gauge)] or higher Reference orifice high-flow Leak detection pump stuck OFF B P043E EVAP pressure in inspection item (B) is less than -4.85 kPa(gauge) [-36.375 mmHg(gauge)] Reference orifice clogged C P2419 EVAP pressure in inspection item (A) is higher than -0.25 kPa(gauge) [-1.875 mmHg(gauge)] Vent valve stuck closed Leak detection pump performance deteriorates Leak detection pump circuit malfunctioning (large resistance exists in the circuit) D *2: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. B --> See step 11 C --> See step 38 D --> See step 13 A: Go to next step
7. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 2/6 TO 3/6) Check the EVAP pressure in step 3/6. RESULT DTC* Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher within 10 seconds of proceeding from step 2/6 to step 3/6 Not yet determined A P2420 No variation in EVAP pressure even after proceeding from step 2/6 to step 3/6 Vent valve stuck open (vent) Canister (charcoal filter inside canister) clogged No. 1 canister (charcoal filter inside canister) clogged 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 27 A: Go to next step
8. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/6) Wait until the EVAP pressure change is less than 0.12 kPa(gauge) [0.9 mmHg(gauge)] 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 4/6) Check the EVAP pressure in step 4/6. RESULT DTC*1 Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher within 10 seconds of proceeding from step 3/6 to step 4/6 Not yet determined A P0441 *2 EVAP pressure increases by 0.3 kPa(gauge) [2.25 mmHg(gauge)] or higher more than 10 seconds of proceeding from step 3/6 to step 4/6 Purge VSV Purge VSV circuit Problems in EVAP hose between purge VSV and intake manifold Problems in EVAP hose between canister and purge VSV ECM B P0441 Variation in EVAP pressure is less than 0.3 kPa(gauge) [2.25 mmHg(gauge)] for 10 seconds, after proceeding from step 3/6 to step 4/6 Purge VSV stuck closed Purge VSV circuit Canister (charcoal filter inside canister) clogged No. 1 canister (charcoal filter inside canister) clogged Problems in EVAP hose between purge VSV and intake manifold Problems in EVAP hose between canister and purge VSV ECM C *1: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedure above. *2: This result suggests that due to purge line blockage or purge VSV malfunction, the DTC was stored by the purge flow monitor while the engine was running, or that key-off monitor test result were nearly borderline values. B --> See step 22 C --> See step 17 A: Go to next step
10. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 5/6) Check the EVAP pressure in step 5/6. Compare the EVAP pressure in step 3/6 and the second reference pressure (step 5/6). RESULT DTC* Result Suspected Trouble Area Proceed to - EVAP pressure from step 3/6 lower than second reference pressure (step 5/6) Not yet determined (no leakage from EVAP system) A P0441 and P0455 EVAP pressure from step 3/6 higher than [second reference pressure (step 5/6) x 0.2] Purge VSV stuck open EVAP gross leak B P0456 EVAP pressure from step 3/6 higher than second reference pressure (step 5/6) 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. A --> See step 43 B --> See step 17
11. PERFORM EVAPORATIVE SYSTEM CHECK (STEP 3/6) Check the EVAP pressure in step 3/6. RESULT DTC* Result Suspected Trouble Area Proceed to P043F EVAP pressure less than [reference pressure] measured in step 2/6 Reference orifice high-flow A P2401 EVAP pressure almost same as [reference pressure] measured in step 2/6 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 2/6. A --> See step 38 B --> See step 31
12. INSPECT CANISTER PUMP MODULE (CANISTER PRESSURE SENSOR CIRCUIT) Check the canister pressure sensor circuit, referring to DTC P0451 canister pressure sensor circuit inspection procedure. Refer to «DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance; DTC P0452: Evaporative Emission Control System Pressure Sensor / Switch Low Input; DTC P0453: Evaporative Emission Control System Pressure Sensor / Switch High Input»(ref-551526-S33382533222013051500000) . NEXT --> See step 48
13. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Turn the power switch off. Disconnect the canister pump module connector. TEXT IN ILLUSTRATION *1 Component without harness connected (Canister Pump Module) Apply the auxiliary battery voltage to terminals VLVB and VGND of the pump module. Touch the canister pump module to confirm the vent valve operation. RESULT Condition Tester Result Suspected Trouble Area Proceed to Apply auxiliary battery voltage to terminals VLVB and VGND Operating Wire harness or connector between vent valve and ECM Leak detection pump performance deteriorates Leak detection pump circuit malfunctioning (large resistance exists in the circuit) ECM A Not operating Vent valve B B --> See step 38 A: Go to next step
14. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Turn the power switch off. Disconnect the ECM connector. 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 A57-42 (VPMP) - S16-1 (VGND) Always Below 1 ohms A57-42 (VPMP) or S16-1 (VGND) - Body ground Always 10 kohms or higher RESULT Result Suspected Trouble Area Proceed to OK Leak detection pump performance deteriorates Leak detection pump circuit malfunctioning (large resistance exists in the circuit) ECM A NG Wire harness or connector between ECM and canister pump module B B --> See step 40 A: Go to next step
15. 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. RESULT Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to S16-4 (MGND) - Body ground Always Below 1 ohms Canister pump module Wire harness or connector between canister pump module and ECM ECM A 10 kohms or higher Wire harness or connector between canister pump module and body ground B B --> See step 40 A: Go to next step
16. CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) 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 Specified Condition Suspected Trouble Area Proceed to A57-34 (MPMP) - S16-3 (MTRB) Always Below 1 ohms Canister pump module ECM A 10 kohms or higher Wire harness or connector between ECM and canister pump module B A --> See step 45 B --> See step 40
17. 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. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to Canister) Start the engine. Using the Techstream, turn off the purge VSV (Activate the VSV for EVAP Control: OFF). Use your finger to confirm that the purge VSV has no suction. Using the Techstream, turn on the purge VSV (Activate the VSV for EVAP Control: ON). Use your finger to confirm that the purge VSV has suction. RESULT Test Result Suspected Trouble Area Proceed to No suction when purge VSV turned off, and suction applied when turned on Blockage in the purge line is considered (based on result of step 9): Problems with EVAP hose between canister and purge VSV Canister (charcoal filter inside canister) clogged ECM A Leakage is considered (based on result of step 10): Fuel cap Leakage from EVAP line, fuel tank, or canister B Suction applied when purge VSV turned off Purge VSV stuck open C No suction when purge VSV turned on Purge VSV stuck closed Problems with EVAP hose between purge VSV and intake manifold D B --> See step 20 C --> See step 21 D --> See step 23 A: Go to next step
18. INSPECT EVAP HOSE (PURGE VSV - CANISTER) Check for blockages in the EVAP purge line between the purge VSV and canister. OK No blockages in the EVAP purge line between the purge VSV and canister. NG --> See step 44 OK: Go to next step
19. INSPECT CANISTER (CHARCOAL FILTER INSIDE CANISTER) Check for filter blockage in the canister. Refer to «INSPECTION»(ref-551520-S27676103132013051500000) . OK No blockages in the canister. OK --> See step 47 NG --> See step 38
20. CHECK FUEL CAP Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications. Tighten the fuel cap firmly (only one click sound could be 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 28 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 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 Defective fuel cap - B No fuel cap - C A --> See step 37 B --> See step 35 C --> See step 36
21. INSPECT PURGE VSV Turn the power switch off. Disconnect the purge VSV connector. TEXT IN ILLUSTRATION *1 Hose (to Canister) *2 Connector *3 Purge VSV Disconnect the hose (connected to the canister) from the purge VSV. 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 Wire harness or connector between purge VSV and ECM ECM A Suction applied Purge VSV B A --> See step 26 B --> See step 39
22. INSPECT EVAP HOSE (PURGE VSV - CANISTER) Check for blockages in the EVAP purge line between the purge VSV and canister. OK No blockages in the EVAP purge line between the purge VSV and canister. NG --> See step 44 OK: Go to next step
23. CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD) Disconnect the hose (connected to the intake manifold) from the purge VSV. TEXT IN ILLUSTRATION *1 Purge VSV *2 Hose (to intake manifold) 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 manifold normal Purge VSV Purge VSV power source Wire harness or connector between purge VSV and ECM A No suction Intake manifold port EVAP hose between purge VSV and intake manifold B B --> See step 34 A: Go to next step
24. INSPECT PURGE VSV Remove the purge VSV. Apply auxiliary battery voltage to the terminals of the purge VSV. TEXT IN ILLUSTRATION *1 Purge VSV Confirm that air flows from port E to port F. RESULT Test Result Condition Suspected Trouble Area Proceed to Air flows Auxiliary battery voltage is applied to purge VSV terminals Purge VSV normal Purge VSV power source Wire harness or connector between purge VSV and ECM A No air flow Auxiliary battery voltage is applied to purge VSV terminals Purge VSV B B --> See step 39 A: Go to next step
25. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV) Disconnect the purge VSV connector. Turn the power switch on (IG). TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Purge VSV) Measure the voltage according to the value(s) in the table below. RESULT Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to D11-2 - Body ground Power switch on (IG) 11 to 14 V Purge VSV power source normal Wire harness or connector between purge VSV and ECM A Other than result above Wire harness or connectors between purge VSV and auxiliary battery B B --> See step 40 A: Go to next step
26. 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 Tester Connection Condition Specified Condition D11-1 - D28-28 (PRG) Always Below 1 ohms D11-1 or D28-28 (PRG) - Body ground Always 10 kohms or higher OK --> See step 47 NG --> See step 40
27. INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) Turn the power switch off. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to 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. RESULT Tester Connection Condition Specified Condition Suspected Trouble Area Proceed to S16-5 (VLVB) - Body ground Power switch on (IG) 11 to 14 V Wire harness or connector between vent valve and ECM Vent valve Canister (charcoal filter inside canister) clogged No. 1 canister (charcoal filter inside canister) clogged ECM A Below 3 V Power source wire harness of vent valve B B --> See step 40 A: Go to next step
28. INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Turn the power switch off. Disconnect the canister pump module connector. TEXT IN ILLUSTRATION *1 Component without harness connected (Canister Pump Module) Apply the auxiliary battery voltage to terminals VLVB and VGND of the pump module. Touch the canister pump module to confirm the vent valve operation. RESULT Condition Tester Result Suspected Trouble Area Proceed to Apply auxiliary battery voltage to terminals VLVB and VGND Operating Wire harness or connector between vent valve and ECM Canister (charcoal filter inside canister) clogged No. 1 canister (charcoal filter inside canister) clogged ECM A Not operating Vent valve B B --> See step 38 A: Go to next step
29. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Turn the power switch off. 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 Canister (charcoal filter inside canister) clogged No. 1 canister (charcoal filter inside canister) clogged ECM A 10 kohms or higher Wire harness or connector between ECM and canister pump module B B --> See step 40 A: Go to next step
30. INSPECT CANISTER (CHARCOAL FILTER INSIDE CANISTER) Check for filter blockage in the canister. Refer to «INSPECTION»(ref-551520-S27676103132013051500000) . OK No blockages in the canister. OK --> See step 47 NG --> See step 38
31. CHECK TERMINAL VOLTAGE (CANISTER PUMP MODULE) Turn the power switch off. Disconnect the canister pump module connector. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) - - Turn the power switch on (IG). 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 Power switch on (IG) 9 to 14 V Wire harness or connector between leak detection pump and body ground Leak detection pump A Below 3 V Wire harness or connector between leak detection pump and ECM ECM B B --> See step 33 A: Go to next step
32. 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 or connector between canister pump module and body ground B A --> See step 38 B --> See step 40
33. 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. Standard Resistance Tester Connection Condition Specified Condition A57-34 (MPMP) - S16-3 (MTRB) Always Below 1 ohms A57-34 (MPMP) or S16-3 (MTRB) - Body ground Always 10 kohms or higher RESULT Result Suspected Trouble Area Proceed to OK ECM A NG Wire harness or connector between ECM and canister pump module B A --> See step 47 B --> See step 40
34. INSPECT INTAKE MANIFOLD (EVAP PURGE PORT) Stop the engine. Disconnect the EVAP hose from the intake manifold. Start the engine. Use your finger to confirm that the port of the intake manifold has suction. RESULT Tester Connection Suspected Trouble Area Proceed to Suction applied EVAP hose between intake manifold and purge VSV A No suction Intake manifold B A --> See step 41 B --> See step 42
35. CORRECTLY REINSTALL OR REPLACE FUEL TANK CAP ASSEMBLY HINT: When reinstalling the fuel cap, tighten it firmly (only one click sound could be head). When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install it firmly. NEXT --> See step 48
36. REPLACE FUEL CAP HINT: When installing the fuel cap, tighten it firmly (only one click sound could be head). NEXT --> See step 48
37. LOCATE EVAP LEAK PART Disconnect the vent hose. TEXT IN ILLUSTRATION *1 Fuel Tank *2 Canister *3 Canister Air Filter *4 Fuel Cap *5 Disconnect the vent hose here *6 No. 1 Canister *7 No. 2 Canister *8 Canister Pump Module 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 - - Pressurize the EVAP system to 3.2 to 3.7 kPa(gauge) [24 to 27.75 mmHg(gauge)]. 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 48
38. REPLACE CANISTER Replace the canister. Refer to «REMOVAL»(ref-551520-S23418059692013051500000) . NOTE: When replacing the canister, check the canister pump module interior, canister interior, No. 1 canister interior, No. 2 canister 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 canister pump module to the No. 2 canister and the pipe from the air inlet port to the No. 2 canister; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior or No. 1 canister interior, replace the canister, No. 1 canister and canister pump module together. If liquids are present in the No. 2 canister interior, dry the No. 2 canister. Check for filter blockage in the canister and No. 1 canister. If the charcoal filter inside the canister or No. 1 canister is clogged, replace the canister and No. 1 canister together. Check for filter blockage in the canister air filter. If the canister air filter has blockages, replace the canister air filter. Check No. 2 canister blockage. If the No. 2 canister has blockages, replace the canister (No. 2 canister). TEXT IN ILLUSTRATION *1 Fuel Tank Vent Hose *2 Air Inlet Port *3 Vent Hose *4 Fuel Tank *5 No. 2 Canister *6 No. 1 Canister *7 Canister *8 Canister Air Filter *9 Canister Pump Module - - *a Inspection Area (Check for Disconnection and/or cracks) - - NEXT --> See step 48
39. REPLACE PURGE VSV Replace the purge VSV. Refer to «REMOVAL»(ref-551520-S07353934732013051500000) . NEXT --> See step 48
40. REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> See step 48
41. REPAIR OR REPLACE EVAP PURGE LINE (INTAKE MANIFOLD - PURGE VSV) NEXT --> See step 48
42. 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. Refer to «REMOVAL»(ref-551535-S34270129262013051500000) . NEXT --> See step 48
43. 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 --> See step 48
44. REPAIR OR REPLACE EVAP PURGE LINE (PURGE VSV - CANISTER) NEXT --> See step 48
45. REPLACE CANISTER Replace the canister. Refer to «REMOVAL»(ref-551520-S23418059692013051500000) . NOTE: When replacing the canister, check the canister pump module interior, canister interior, No. 1 canister interior, No. 2 canister 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 canister pump module to the No. 2 canister and the pipe from the air inlet port to the No. 2 canister; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in the canister interior or No. 1 canister interior, replace the canister, No. 1 canister and canister pump module together. If liquids are present in the No. 2 canister interior, dry the No. 2 canister. Check for filter blockage in the canister and No. 1 canister. If the charcoal filter inside the canister or No. 1 canister is clogged, replace the canister and No. 1 canister together. Check for filter blockage in the canister air filter. If the canister air filter has blockages, replace the canister air filter. Check No. 2 canister blockage. If the No. 2 canister has blockages, replace the canister (No. 2 canister). TEXT IN ILLUSTRATION *1 Fuel Tank Vent Hose *2 Air Inlet Port *3 Vent Hose *4 Fuel Tank *5 No. 2 Canister *6 No. 1 Canister *7 Canister *8 Canister Air Filter *9 Canister Pump Module - - *a Inspection Area (Check for Disconnection and/or cracks) - - NEXT: Go to next step
46. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) NOTE: The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the Techstream. It takes a maximum of approximately 24 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 in this step. 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 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-551395-S24983050562013051500000) . 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. RESULT Result Proceed to EVAP system DTCs are output A No DTCs output (No pending DTCs output) B B --> END A: Go to next step
47. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-551525-S25737291822013051500000) . NEXT: Go to next step
48. PERFORM EVAPORATIVE SYSTEM CHECK (AUTOMATIC MODE) NOTE: The Evaporative System Check (Automatic Mode) consists of 6 steps performed automatically by the Techstream. It takes a maximum of approximately 24 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 in this step. 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 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-551395-S24983050562013051500000) . 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. HINT: If no pending DTCs are found, the repair has been successfully completed. NEXT --> END

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

Scheme 86

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 Switch 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 7 OK: Go to next step
3. INSPECT INTEGRATION RELAY (EFI MAIN RELAY) Inspect the integration relay. Refer to «INSPECTION»(ref-551525-S40824678752013051500000) . NG --> See step 12 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
5. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (EFI MAIN RELAY) - AUXILIARY BATTERY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. 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 (Check for Open) Tester Connection Condition Specified Condition 1C-1 - Auxiliary battery positive terminal Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 14
7. INSPECT INTEGRATION RELAY (IG2 RELAY) Inspect the integration relay. Refer to «INSPECTION»(ref-551525-S40824678752013051500000) . NG --> See step 13 OK: Go to next step
8. 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - AUXILIARY BATTERY) Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. 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 (Check for Open) Tester Connection Condition Specified Condition 1C-1 - Auxiliary battery positive terminal Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
10. 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
11. 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 (Check for Open) Tester Connection Condition Specified Condition A22-2 (IG2D) - 1A-2 Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 15
12. REPLACE INTEGRATION RELAY. Refer to «REMOVAL»(ref-551525-S35451648412013051500000)
13. REPLACE INTEGRATION RELAY. Refer to «REMOVAL»(ref-551525-S35451648412013051500000)
14. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551395-S29262893132013051500000)
15. CHECK SMART KEY SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-551394-S07192455132013051500000)

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 87

1. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) 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 Switch 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-551530-S28140032702013051500000) . 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 (Check for Open) 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 Standard Resistance (Check for Short) Tester Connection Condition Specified Condition 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 (INTEGRATION RELAY (IG2 RELAY) - FUEL INJECTOR ASSEMBLY) Disconnect the fuel injector assembly connectors. 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 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 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
5. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-551530-S21268817872013051500000)
6. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551395-S29262893132013051500000)
7. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-551526-S33310737362013051500000)

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

Scheme 88

Scheme 89

1. CHECK THAT MIL IS ILLUMINATED Check the illumination of the MIL. Result Condition Proceed to MIL remains on A MIL remains off (Does not illuminate at all) B MIL illuminates and should turn off after power switch on (READY) C B --> See step 5 C --> See step 10 A: Go to next step
2. CHECK WHETHER MIL TURNS OFF 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. Check if any DTCs have been stored. Note down the DTCs. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-551395-S24983050562013051500000) . Check if the MIL goes off. OK MIL goes off. NG --> See step 3 OK --> See step 8
3. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the A57 ECM connector. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) Turn the power switch on (IG). Check that the MIL is not illuminated. OK MIL is not illuminated. NG --> See step 4 OK --> See step 9
4. CHECK HARNESS AND CONNECTOR (NO. 3 METER CIRCUIT PLATE - ECM) Disconnect the No. 3 meter circuit plate connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Condition Specified Condition L27-25 (EFI) or A57-36 (W) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
5. CHECK THAT ENGINE STARTS Turn the power switch on (IG). Put the engine in inspection mode (maintenance mode). Refer to «INSPECTION MODE PROCEDURE»(ref-551389-S33941292062013051500000) . Start the engine. Result Result Proceed to Engine starts A Engine cannot be put in inspection mode* (Engine cannot start) B HINT: *: The Techstream cannot communicate with the ECM. B --> See step 11 A: Go to next step
6. CHECK HARNESS AND CONNECTOR (ECM TERMINAL 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 A57-36 (W) - 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 7 OK --> See step 9
7. CHECK HARNESS AND CONNECTOR (NO. 3 METER CIRCUIT PLATE - ECM) Disconnect the No. 3 meter circuit plate 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 L27-25 (EFI) - A57-36 (W) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
8. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-551395-S06926628002013051500000)
9. REPLACE ECM. Refer to «REMOVAL»(ref-551525-S25737291822013051500000)
10. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-551395-S19849788882013051500000)
11. GO TO VC OUTPUT CIRCUIT. Refer to «VC Output Circuit»(ref-551526-S18890287622013051500000)
12. REPLACE NO. 3 METER CIRCUIT PLATE. Refer to «DISASSEMBLY»(ref-551538-S14054080882013051500000)