Engine Control System [1AR-FE] [Diagnostic Codes] [P043E-P1603]: Diagnosis Toyota Sienna III

DTC SUMMARY

HINT

The reference orifice is located inside the canister pump module.

INSPECTION PROCEDURE

Refer to EVAP System. Refer to INSPECTION PROCEDURE .

Refer to EVAP System. Refer to INSPECTION PROCEDURE .

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.

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Scheme 419

1. CONFIRM DTC AND EVAP PRESSURE Connect the Techstream to the DLC3. Turn the ignition switch to ON (do not start the engine). Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. Enter the following menus: Powertrain / Engine / Data List / 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 Below 42.11 kPa(abs) [315.85 mmHg(abs)] Wire harness/connector (ECM - Canister pressure sensor) Canister pressure sensor Short in ECM circuit A P0453 Higher than 123.761 kPa(abs) [928.28 mmHg(abs)] Wire harness/connector (ECM - Canister pressure sensor) Canister pressure sensor Open in ECM circuit B B --> See step 5 C --> See step 4 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) Turn the ignition switch off. 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 B45-114 (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 8 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 B45-114 (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 6 B --> See step 7
4. GO TO EVAP SYSTEM. Refer to «EVAP System»(ref-494125-S33053318022012081000000)
5. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) 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 g1-8 (SGND) - Body ground Always 100 ohms or less Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition g1-6 (VCC) - Body ground Ignition switch ON 4.5 to 5.5 V g1-7 (VOUT) - Body ground Ignition switch ON 4.5 to 5.5 V RESULT Test Result Suspected Trouble Area Proceed to Voltage and resistance within standard ranges Open in canister pressure sensor circuit A Voltage and/or resistance outside standard ranges Open in wire harness/connector (ECM - Canister pressure sensor) B TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Canister Pump Module) B --> See step 7 A: Go to next step
6. REPLACE CANISTER PUMP MODULE Replace the canister pump module. Refer to «REMOVAL»(ref-494114-S14489941332012081000000) . NOTE: When replacing canister pump module, check the canister pump module interior, 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 air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. If liquids are present in canister interior, replace canister and canister pump module together (replace canister assembly). Check for filter blockage in the canister assembly. If the charcoal filter inside the canister assembly is clogged, replace canister and canister pump module together (replace canister assembly). Check for filter blockage in the canister filter. If the canister filter has blockages, replace the canister filter. TEXT IN ILLUSTRATION *1 Fuel Tank Vent Hose *2 Vent Hose *3 Air Inlet Port (behind Fuel Tank Filler Pipe Cover) *4 Canister Filter *5 Fuel Tank *6 Canister Assembly - Canister Pump Module *a Inspection Area (Check for disconnection and/or cracks) - - NEXT --> See step 9
7. REPAIR OR REPLACE HARNESS OR CONNECTOR (CANISTER PUMP MODULE - ECM) HINT: If the exhaust tailpipe has been removed, go to the next step before reinstalling it. NEXT --> See step 9
8. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000) . NEXT --> See step 9
9. CHECK WHETHER DTC OUTPUT RECURS (AFTER REPAIR) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Turn the Techstream on. Perform the Evaporative System Check using the Techstream, referring to the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / 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

Refer to EVAP System. Refer to 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.

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. Stop light switch conditions can be checked using the Techstream. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch and ST1. Check the Data List indication when the brake pedal is depressed and released.

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Scheme 421

1. CHECK TERMINAL VOLTAGE (POWER SOURCE OF STOP LIGHT SWITCH ASSEMBLY) Disconnect the stop light switch assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A2-2 - Body ground Always 11 to 14 V A2-4 - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Stop Light Switch Assembly) Reconnect the stop light switch assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - BATTERY, IGNITION SWITCH) OK: Go to next step
2. INSPECT STOP LIGHT SWITCH ASSEMBLY Inspect the stop light switch assembly. Refer to «INSPECTION»(ref-494137-S14512341712012081000000) . NG --> See step 4 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - ECM) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A55-39 (ST-) - Body ground Brake pedal released 7.5 to 14 V Brake pedal depressed 0 to 1.5 V A55-29 (STP) - Body ground Brake pedal released 0 to 1.5 V Brake pedal depressed 7.5 to 14 V TEXT IN ILLUSTRATION *a Brake pedal depressed *b Brake pedal released *c Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
4. REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-494137-S27467361812012081000000)
5. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)

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 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. Refer to "Data List / Active Test" [Engine Speed, ISC Feedback Value and ISC Learning Value]. Refer to «DATA LIST / ACTIVE TEST»(ref-493953-S07536272062012081000000) .

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

1. DTC P050B may be output when the engine has the symptoms listed below. If necessary, check the trouble areas listed below. Symptom Factor Trouble Area Low idle speed when engine is cold (immediately after engine start) Excessive engine friction Engine oil deterioration Drive belt tension A/C compressor Generator Rough idle when engine is 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.

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

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. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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 422

1. CHECK FOR ANY OTHER DTCS OUTPUT Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . RESULT Result Proceed to P0607 and P0136, P0137 or P0138 are output A 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 «DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)»(ref-494127-S39277968642012081000000) . Then proceed to "INSPECT ECM". If P0137 is output, troubleshoot for that DTC first. Refer to «DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)»(ref-494127-S39277968642012081000000) . Then proceed to "INSPECT ECM". If P0138 is output, troubleshoot for that DTC first. Refer to «DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)»(ref-494127-S39277968642012081000000) . 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 higher). NEXT --> See step 6
3. CHECK FOR EXHAUST GAS LEAK Allow the engine to idle, and then 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". 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 Clear DTC. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . Connect the Techstream to the DLC3. Start the engine. Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher. Perform the driving pattern. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle. Drive the vehicle between 60 and 80 km/h (37 and 50 mph) for 5 minutes. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. RESULT Result Proceed to P0136, P0137, P0138 and/or P0607 are output A Only P0607 is output B No DTC is 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 «DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)»(ref-494127-S39277968642012081000000) . Then proceed to "INSPECT ECM". If P0137 is output, troubleshoot for that DTC first. Refer to «DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)»(ref-494127-S39277968642012081000000) . Then proceed to "INSPECT ECM". If P0138 is output, troubleshoot for that DTC first. Refer to «DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2); DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2); DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2); DTC P0139: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 2)»(ref-494127-S39277968642012081000000) . 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 higher). NEXT: Go to next step
6. INSPECT ECM Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. Stop the engine and wait for 30 minutes. Connect the Techstream to the DLC3. Start the engine and allow it to idle for 2 minutes. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. RESULT Result Proceed to DTC is not output A P0607 is output B B --> See step 8 A --> END
7. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)
8. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)

Note. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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 423

Scheme 424

Scheme 425

1. READ VALUE USING TECHSTREAM (STARTER SIGNAL) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Starter Signal. Read the value displayed on the Techstream when the ignition switch is turned to ON and the engine is started. OK Condition Techstream Display (Starter Signal) Ignition switch ON OFF Engine start ON NG --> See step 2 OK --> See step 11
2. READ VALUE USING TECHSTREAM (STARTER SIGNAL) Disconnect the park/neutral position switch assembly connector. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Starter Signal. Read the value displayed on the Techstream when the ignition switch is turned to ON. RESULT Result Proceed to Remains ON A OFF B Reconnect the park/neutral position switch assembly connector. B --> See step 4 A: Go to next step
3. INSPECT ECM (STA TERMINAL VOLTAGE) Disconnect the park/neutral position switch assembly connector. Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) RESULT Tester Connection Switch Condition Specified Condition Proceed to A55-48 (STA) - Body ground Ignition switch ON 11 to 14 V A Below 1.5 V B Reconnect the ECM connector. Reconnect the park/neutral position switch assembly connector. B --> See step 8 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY - ECM)
4. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Disconnect the park/neutral position switch assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 4 (B) - 9 (L) Shift lever in any position other than P or N 10 kohms or higher 1 (RB) - 9 (L) Always 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (Park/Neutral Position Switch Assembly) RESULT Result Proceed to Short between 4(B) and 9(L) A Short between 1(RB) and 9(L) B Within standard range C B --> See step 10 C --> See step 6 A: Go to next step
5. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Replace the park/neutral position switch assembly. Refer to «REMOVAL»(ref-494121-S24452870572012081000000) . NEXT: Go to next step
6. INSPECT IGNITION SWITCH Inspect the ignition switch. Refer to «INSPECTION»(ref-494128-S09023094182012081000000) . NG --> See step 9 OK: Go to next step
7. INSPECT ECM (NSW TERMINAL VOLTAGE) Disconnect the park/neutral position switch assembly connector. Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) RESULT Tester Connection Switch Condition Specified Condition Proceed to B45-47 (NSW) - Body ground Ignition switch ON 11 to 14 V A Below 1.5 V B Reconnect the ECM connector. Reconnect the park/neutral position switch assembly connector. B --> See step 8 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - PARK/NEUTRAL POSITION SWITCH - ECM)
8. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)
9. REPLACE IGNITION SWITCH. Refer to «REMOVAL»(ref-494128-S33214180292012081000000)
10. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-494121-S24452870572012081000000)
11. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-493953-S11245618992012081000000)

Note. There is a possibility that the DTC P062F is issued from the ECUs of the ECM and TCM. Use the Techstream to conduct a health check to confirm which ECU the DTC is issued from and then inspect the related system. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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. After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION .

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.

1. DATA LIST NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Warm up the engine. Turn the ignition switch off. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List. Read the values displayed on the Techstream. Techstream Display Measurement Item/Range Normal Condition Diagnostic Note Neutral Position SW Signal Park/neutral position switch status/ ON or OFF ON: Shift lever in P or N - Shift SW Status (R Range) Park/neutral position switch status: ON or OFF ON: Shift lever in R OFF: Shift lever not in R When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect Shift SW Status (P Range) Park/neutral position switch status: ON or OFF ON: Shift lever in P OFF: Shift lever not in P When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect Shift SW Status (N Range) Park/neutral position switch status: ON or OFF ON: Shift lever in N OFF: Shift lever not in N When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect Shift SW Status (D Range) Park/neutral position switch status: ON or OFF ON: Shift lever in D or S OFF: Shift lever not in D or S When shift lever position displayed on Techstream differs from actual position, adjustment of park/neutral position switch assembly or shift cable may be incorrect Sports Mode Selection SW Sport Mode Select Switch Status: ON or OFF ON: Shift lever in S, "+" or "-" OFF: Shift lever not in S, "+" or "-"

Scheme 426

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Scheme 428

Scheme 429

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List. Read the values displayed on the Techstream. OK Techstream Display Shift Lever Specified Condition Neutral Position SW Signal P or N ON Except P or N OFF Shift SW Status (R Range) R ON Except R OFF Shift SW Status (P Range) P ON Except P OFF Shift SW Status (N Range) N ON Except N OFF Shift SW Status (D Range) D or S ON Except D or S OFF NG --> See step 5 OK: Go to next step
2. READ VALUE USING TECHSTREAM (SPORTS MODE SELECTION SW) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Sports Mode Selection SW. Read the values displayed on the Techstream. OK Techstream Display Shift Lever Specified Condition Sports Mode Selection SW S ON Except S OFF NG --> See step 3 OK --> See step 9
3. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH) Disconnect the transmission control switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 6 (IG) - 13 (S) Shift lever in S, "+" or "-" Below 1 ohms Shift lever in any position other than S, "+" or "-" 10 kohms or higher TEXT IN ILLUSTRATION *a Component without harness connected (Transmission Control Switch) NG --> See step 10 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (ECM - TRANSMISSION CONTROL SWITCH) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Shift Lever Position Switch Condition Specified Condition A55-14 (S) - Body ground Shift lever in S, "+" or "-" Ignition switch ON 11 to 14 V Shift lever in any position other than S, "+" or "-" Ignition switch ON 0 to 1.5 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
5. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY VOLTAGE) Disconnect the park/neutral position switch assembly connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition B3-1 (RB) - Body ground Ignition switch ON 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Park/neutral Position Switch Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY) OK: Go to next step
6. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Inspect the park/neutral position switch assembly. Refer to «INSPECTION»(ref-494121-S31037825002012081000000) . NG --> See step 11 OK: Go to next step
7. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH ASSEMBLY) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition B45-32 (P) - Body ground Ignition switch ON Shift lever in P 11 to 14 V Ignition switch ON Shift lever in any position other than P 0 to 1.5 V B45-33 (R) - Body ground Ignition switch ON Shift lever in R 11 to 14 V Ignition switch ON Shift lever in any position other than R 0 to 1.5 V B45-34 (N) - Body ground Ignition switch ON Shift lever in N 11 to 14 V Ignition switch ON Shift lever in any position other than N 0 to 1.5 V B45-30 (D) - Body ground Ignition switch ON Shift lever in D 11 to 14 V Ignition switch ON Shift lever in any position other than D 0 to 1.5 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to ECM) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
8. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - ECM) Disconnect the park/neutral position switch assembly connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B3-4 (B) - B45-47 (NSW) Always Below 1 ohms B3-4 (B) or B45-47 (NSW) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
9. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-493953-S11245618992012081000000)
10. REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION CONTROL SWITCH). Refer to «REMOVAL»(ref-494121-S23693317892012081000000)
11. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-494121-S24452870572012081000000)
12. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)

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. Using the Techstream, the Data List item "Stop Light Switch" and "ST1" can be read. Refer to «DATA LIST / ACTIVE TEST»(ref-493953-S07536272062012081000000) .

Scheme 430

1. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch. Read the values displayed on the Techstream. OK Techstream Display Measurement Item/Range (display) Normal Condition Stop Light Switch Stop light switch status: ON or OFF ON: Brake pedal depressed OFF: Brake pedal released NG --> See step 2 OK --> See step 8
2. CHECK STOP LIGHT SWITCH ASSEMBLY INSTALLATION Check the stop light switch installation. Refer to «INSTALLATION»(ref-494137-S05522917382012081000000) . OK Stop light switch is installed correctly. NG --> See step 7 OK: Go to next step
3. INSPECT STOP LIGHT SWITCH ASSEMBLY Inspect the stop light switch assembly. Refer to «INSPECTION»(ref-494137-S14512341712012081000000) . NG --> See step 6 OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - ECM) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A55-29 (STP) - Body ground Brake pedal released 0 to 1.5 V Brake pedal depressed 7.5 to 14 V TEXT IN ILLUSTRATION *a Brake pedal depressed *b Brake pedal released *c Front view of wire harness connector (to ECM) Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
5. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)
6. REPLACE STOP LIGHT SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-494137-S27467361812012081000000)
7. SECURELY REINSTALL STOP LIGHT SWITCH ASSEMBLY. Refer to «INSTALLATION»(ref-494137-S05522917382012081000000)
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-493953-S11245618992012081000000)

HINT

1. In contrast to normal malfunction diagnosis for components, circuits and systems, DTCs P1603 and P1605 are used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as engine stall. As these DTCs can be stored as a result of certain user actions, even if these DTCs are output, if the customer makes no mention of problems, clear these DTCs without performing any troubleshooting and return the vehicle to the customer.
2. If any other DTCs are output, perform troubleshooting for those DTCs first.
3. Use any information from the customer problem analysis about the condition of the vehicle at the time when the problem occurred (how the engine stopped, conditions when the engine was restarted, etc.) as a reference. Symptom Suspected Area Engine vibration occurs and engine stops Air fuel ratio abnormal Engine stops with no engine vibration Ignition system, injection stoppage, high load from external parts Engine can be started with accelerator pedal depressed Insufficient air volume Rough idling after engine started Air fuel ratio abnormal, abnormal combustion
4. Read freeze frame data using the Techstream. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
5. When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) .
6. When DTC P1603 (Engine Stall History) is stored, DTC P1605 (Rough Idling) is also stored. When confirming freeze frame data, check DTC P1605. (The ECM stores DTC P1605 first. Therefore, the 5 sets of freeze frame data can be confirmed through DTC P1605, enabling the technician to obtain more information.)
7. When confirming freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
8. Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data.
9. Inspections take into account the fact that the malfunction may not have reoccurred and place emphasis on checking the vehicle conditions present at the time when the malfunction occurred.
10. When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.

Inspection flow

Using freeze frame data, narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred.

P1603

Scheme 431

1

1. If the engine stalled when the intake air volume was low (during idling or deceleration), there may be a decrease in torque due to an incorrect air fuel ratio, etc.
2. If the engine stalled when the intake air volume was high (during driving or acceleration), there may be a major malfunction such as continuous misfire due to ignition stoppage, fuel injection stoppage, etc. and the torque drops to zero.

2

1. If the engine speed decreased slowly, there may have been a decrease in torque due to an air fuel ratio that was incorrect (by approximately 20 to 30%), etc.
2. If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.

3

1. If the air fuel ratio was abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
2. If the air fuel ratio was normal, the air volume may have been insufficient or the ignition timing may have been incorrect.

P1603 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).

P1605

Scheme 432

1

1. If the engine speed decreased slowly, there may have been a decrease in torque due to an air fuel ratio that was incorrect (by approximately 20 to 30%), etc.
2. If the engine speed decreased rapidly, there may have been a malfunction such as when the engine misfires almost continuously due to ignition stoppage, fuel injection stoppage, etc., or when the external load increases due to an external part malfunctioning.

2

1. If the air fuel ratio was abnormal, there may have been an intake air leak, sensor malfunction, or fuel supply problem.
2. If the air fuel ratio was normal, the air volume may have been insufficient or the ignition timing may have been incorrect.

P1605 inspection flow: Narrow down the parts to be inspected according to the vehicle conditions at the time when the malfunction occurred (freeze frame data).

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

Scheme 433

Scheme 434

Scheme 435

Scheme 436

Scheme 437

Scheme 438

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1603 OR P1605) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read DTCs. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . RESULT Result Proceed to DTC P1603 and/or P1605 is output A DTC P1603 or P1605 and other DTCs are output B B --> See step 59 A: Go to next step
2. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Problem Symptom Freeze Frame Data Item Suspected Area Proceed to Closed Throttle Position SW Engine Speed Total of Short FT and Long FT When idling or decelerating, engine speed slowly decreases and engine stalls All 5 sets of freeze frame data are ON Decreases slowly*1 All 5 sets of freeze frame data are +15% or more*2 Air suction Sensor malfunction (value from sensor too lean) Fuel supply problem A At least 1 of the 5 sets of freeze frame data is -15% or less*3 Sensor malfunction (value from sensor too rich) B All 5 sets of freeze frame data are between -15% and +15% Intake air volume insufficient Ignition timing incorrect C When idling or decelerating, engine speed rapidly decreases and engine stalls Decreases rapidly*1 - Injection stoppage, ignition stoppage Load from external parts D When accelerating or driving at constant speed, engine stalls*4 At least one is OFF - - Sensor malfunction Injection stoppage, ignition stoppage Fuel supply problem E HINT: *1: A rapid decrease in engine speed may be caused by an electrical fault in the shared wiring of all or a number of cylinders, an increase in load from external parts, etc. The engine speed is considered to have decreased rapidly if either of the following conditions applies. Otherwise, the engine speed is considered to have decreased slowly. In the freeze frame data, the decrease in engine speed from #3 to #5 is 400 RPM or more. In the freeze frame data, the engine speed at #5 is 120 RPM or less. If the vehicle speed is 25 km/h (15 mph) or less and the difference between Engine Speed and SPD (NT) is 100 RPM or less, inspect the automatic transaxle. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) *2: When a DTC is stored, feedback compensation increases because the air fuel ratio is determined to be lean. *3: When a DTC is stored, feedback compensation decreases because the air fuel ratio is determined to be rich. *4: This item should be checked when DTC P1603 is output and is not necessary to check when only P1605 is output. B --> See step 25 C --> See step 35 D --> See step 42 E --> See step 49 A: Go to next step
3. CHECK INTAKE SYSTEM Check for air leaks in the intake system (vacuum hose disconnection, cracks, damaged gaskets, etc.). Refer to «ON-VEHICLE INSPECTION»(ref-494130-S08663945172012081000000) . HINT: If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake pipes increases and the air suction noise becomes louder. If Short FT and Long FT are largely different from the normal values when idling (the intake air volume is small) and almost the same as the normal values when racing the engine (the intake air volume is high), air leaks may be present. OK There is no air leaks. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
4. CHECK PURGE VSV Disconnect the purge hose (on the canister side) of the purge VSV. TEXT IN ILLUSTRATION *1 Hose (to Canister) *2 Purge VSV Start the engine. Idle the engine. Disconnect the connector of the purge VSV. Check if air flows through the purge VSV. OK Air does not flow. Reconnect the connector of the purge VSV. Reconnect the purge hose of the purge VSV. HINT: When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . NG --> See step 60 OK: Go to next step
5. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Stop Light Switch At least 1 of the 5 sets of freeze frame data is ON Air suction from brake booster A All 5 sets of freeze frame data are OFF - B B --> See step 7 A: Go to next step
6. READ VALUE USING TECHSTREAM (SHORT FT #1) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Start the engine and warm it up until the engine coolant temperature stabilizes. HINT: The A/C switch and all accessory switches should be off. Idle the engine. Using the Techstream, read [Short FT #1] of the Data List while depressing the brake pedal. Standard Short FT #1 changes by +10% or less. HINT: Even if the results are normal, the brake booster may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the brake booster (refer to step 56). When air leaks from the brake booster is present, the feedback compensation increases because the air fuel ratio becomes lean. It is also possible to perform the airtightness inspection to check the brake booster. NG --> See step 61 OK: Go to next step
7. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Calculate Load Below 90% of the current value of the vehicle*1 Mass air flow meter A AFS Voltage B1S1 3.3 V or higher*2 Air fuel ratio sensor Wire harness or connector Actual air fuel ratio abnormal B Both freeze frame data items listed above Values are other than above - C HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. *1: If the mass air flow meter is malfunctioning, the freeze frame data will show a low engine load value. *2: If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is lean, the actual air fuel ratio will become rich and the engine may stall. B --> See step 9 C --> See step 12 A: Go to next step
8. INSPECT MASS AIR FLOW METER Remove the mass air flow meter. Check for foreign matter in the air flow passage of the mass air flow meter. RESULT Result Proceed to Visible foreign matter is present A Visible foreign matter is not present B Reinstall the mass air flow meter. HINT: Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the mass air flow meter (refer to step 56). B --> See step 12 A --> See step 70
9. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume. Change the fuel injection volume using the Techstream, and monitor the voltage output of the air fuel ratio and heated oxygen sensors displayed on the Techstream. Standard Techstream Display Specified Condition Control the Injection Volume (12 %) Air fuel ratio sensor output voltage is below 3.1 V Control the Injection Volume (-12 %) Air fuel ratio sensor output voltage is higher than 3.4 V RESULT Result Proceed to Abnormal A Normal B HINT: 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. Even if the results are normal, the air fuel ratio sensor may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the air fuel ratio sensor (refer to step 56). B --> See step 12 A: Go to next step
10. CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR) Check the harnesses and connectors, referring to DTC P0031 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-494127-S35024284522012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 62 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Check the harnesses and connectors, referring to DTC P2237 inspection procedure. Refer to «PROCEDURE - Step 1»(ref-494125-S05659603222012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 63
12. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Proceed to Initial Engine Coolant Temp, Initial Intake Air Temp Difference in temperature between each item is below 10°C*1 A Difference in temperature between each item is 10°C or more*2 B HINT: *1: A long time had elapsed after stopping the engine. *2: A long time had not elapsed after stopping the engine. B --> See step 15 A: Go to next step
13. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Initial Engine Coolant Temp, Coolant Temp, Engine Run Time Range A Engine coolant temperature sensor Thermostat A Range B Engine coolant temperature B Range C - C HINT: This step is not directly related to engine stall. B --> See step 16 C --> See step 17 A: Go to next step
14. INSPECT THERMOSTAT Inspect the thermostat. Refer to «INSPECTION»(ref-494108-S30213281032012081000000) . RESULT Result Proceed to Abnormal A Normal B HINT: This step is not directly related to engine stall. B --> See step 16 A --> See step 78
15. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Coolant Temp 120°C or higher Engine coolant temperature sensor A Coolant Temp Engine coolant temperature is lower than outside temperature* by 15°C or more Engine coolant temperature sensor Both freeze frame data items listed above Values are other than above - B HINT: *: Use an actual outside temperature estimated from the Initial Intake Air Temp, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected. B --> See step 17 A: Go to next step
16. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION»(ref-493956-S41646266622012081000000) . RESULT Result Proceed to Abnormal A Normal B HINT: Even if the results are normal, the engine coolant temperature sensor may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the engine coolant temperature sensor (refer to step 56). B --> See step 17 A --> See step 69
17. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to EVAP (Purge) VSV At least 1 of the 5 sets of freeze frame data is not 0% Purge VSV A All 5 sets of freeze frame data are 0% - B HINT: If the purge VSV is stuck closed, air fuel ratio compensation by the purge VSV is incorrectly adjusted, and then the air fuel ratio becomes lean and the engine may stall. B --> See step 22 A: Go to next step
18. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) Disconnect the purge hose (on the canister side) of the purge VSV. TEXT IN ILLUSTRATION *1 Hose (to Canister) *2 Purge VSV Connect the Techstream to the DLC3. Turn the ignition switch to ON. Start the engine. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control. Operate the purge VSV and check the air flow. OK Activate the VSV for Evap Control Specified Condition ON Air flows OFF Air does not flow RESULT Result Proceed to Abnormal A Normal B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Even if the results are normal, the purge VSV may have been malfunctioning. Continue this inspection procedure until step 24, and if there are no problems with other parts, replace the purge VSV (refer to step 56). B --> See step 22 A: Go to next step
19. INSPECT PURGE VSV Inspect the purge VSV. Refer to «INSPECTION»(ref-494114-S08629299822012081000000) . NG --> See step 64 OK: Go to next step
20. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV) Check the harnesses and connectors, referring to EVAP System inspection procedure. Refer to «PROCEDURE - Step 25»(ref-494125-S34757614642012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 65 OK: Go to next step
21. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Check the harnesses and connectors, referring to EVAP System inspection procedure. Refer to «PROCEDURE - Step 26»(ref-494125-S34757614642012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 80
22. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed. When performing the Active Test, check for an operating sound from the fuel suction with pump and gauge tube assembly. OK Control the Fuel Pump/Speed Specified Condition ON Operating sound heard OFF Operating sound not heard RESULT Result Proceed to Abnormal A Normal B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell. If the fuel suction with pump and gauge tube assembly operating noise is abnormal, proceed to step 23 . B --> See step 24 A: Go to next step
23. INSPECT FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY Inspect the fuel suction with pump and gauge tube assembly. Refer to «INSPECTION»(ref-494129-S01883739502012081000000) . NG --> See step 66 OK --> See step 81
24. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel suction with pump and gauge tube assembly, and for signs that the fuel suction with gauge tube assembly was stuck. RESULT Result Proceed to There is foreign matter or signs that fuel suction with pump gauge tube assembly was stuck A There is no foreign matter and no signs that fuel suction with pump gauge tube assembly was stuck B HINT: If there is foreign matter such as iron particles on the fuel suction with pump gauge tube assembly, remove the foreign matter. B --> See step 56 A --> REPAIR OR REPLACE FUEL SYSTEM
25. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Calculate Load 110% or more of the current value of the vehicle*1 Mass air flow meter A AFS Voltage B1S1 Below 3.3 V*2 Air fuel ratio sensor Harness and connector Actual air fuel ratio abnormal B Both freeze frame data items listed above Values are other than above - C HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. *1: If the mass air flow meter is malfunctioning and incorrectly measures the intake air volume to be higher than the actual volume of air flowing through the intake manifold, the freeze frame data will show a high engine load value. *2: As the air fuel ratio sensor output is low before the sensor warms up, the value at that time cannot be used for diagnosis. If the air fuel ratio sensor is malfunctioning and constantly outputs a value indicating the air fuel ratio is rich, the actual air fuel ratio will become lean and the engine may stall. B --> See step 27 C --> See step 30 A: Go to next step
26. INSPECT MASS AIR FLOW METER Remove the mass air flow meter. Check for foreign matter in the air flow passage of the mass air flow meter. RESULT Result Proceed to Visible foreign matter is present A Visible foreign matter is not present B HINT: Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 34, and if there are no problems with other parts, replace the mass air flow meter (refer to step 56). B --> See step 30 A --> See step 70
27. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume. Change the fuel injection volume using the Techstream, and monitor the voltage output of the air fuel ratio and heated oxygen sensors displayed on the Techstream. Standard Techstream Display Specified Condition Control the Injection Volume (12 %) Air fuel ratio sensor output voltage is below 3.1 V Control the Injection Volume (-12 %) Air fuel ratio sensor output voltage is higher than 3.4 V RESULT Result Proceed to Abnormal A Normal B HINT: 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. Even if the results are normal, the air fuel ratio sensor may have been malfunctioning. Continue this inspection procedure until step 34, and if there are no problems with other parts, replace the air fuel ratio sensor (refer to step 56). B --> See step 30 A: Go to next step
28. CHECK TERMINAL VOLTAGE (POWER SOURCE OF AIR FUEL RATIO SENSOR) Check the harnesses and connectors, referring to DTC P0031 inspection procedure. Refer to «PROCEDURE - Step 2»(ref-494127-S35024284522012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> See step 67 OK: Go to next step
29. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Check the harnesses and connectors, referring to DTC P2237 inspection procedure. Refer to «PROCEDURE - Step 1»(ref-494125-S05659603222012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 83
30. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Proceed to Initial Engine Coolant Temp, Initial Intake Air Temp Difference in temperature between each item is below 10°C*1 A Difference in temperature between each item is 10°C or more*2 B HINT: *1: A long time had elapsed after stopping the engine. *2: A long time had not elapsed after stopping the engine. B --> See step 33 A: Go to next step
31. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions present when the DTC was stored which are recorded in the freeze frame data. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Initial Engine Coolant Temp, Coolant Temp, Engine Run Time Range A Engine coolant temperature sensor Thermostat A Range B Engine coolant temperature B Range C - C HINT: This step is not directly related to engine stall. B --> See step 34 C --> See step 57 A: Go to next step
32. INSPECT THERMOSTAT Inspect the thermostat. Refer to «INSPECTION»(ref-494108-S30213281032012081000000) . RESULT Result Proceed to Abnormal A Normal B HINT: This step is not directly related to engine stall. B --> See step 34 A --> See step 84
33. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Coolant Temp 120°C or higher Engine coolant temperature sensor A Coolant Temp Engine coolant temperature is lower than outside temperature* by 15°C or more Engine coolant temperature sensor Both freeze frame data items listed above Values are other than above - B HINT: *: Use an actual outside temperature estimated from the Initial Intake Air Temp, Ambient Temp for A/C, and (if possible) the weather when the DTC was detected. B --> See step 57 A: Go to next step
34. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION»(ref-493956-S41646266622012081000000) . RESULT Result Proceed to Abnormal A Normal B HINT: Even if the results are normal, the engine coolant temperature sensor may have been malfunctioning. If there are no problems with other parts, replace the engine coolant temperature sensor (refer to step 56). B --> See step 56 A --> See step 79
35. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Total of ISC Learning Value and ISC Feedback Value Below 80% of the current value of the vehicle*1 Throttle with motor body assembly A 120% or more of the current value of the vehicle*2 B From 80 to 120% of the current value of the vehicle - C HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. *1: If the throttle with motor body assembly has a temporary problem in which it cannot fully close, the intake air volume and engine speed increase. As a result, the ISC learning amount becomes less than the standard. At this time, if the throttle with motor body assembly returns to normal and fully closes, the intake air volume will be insufficient and the engine may stall. *2: If carbon accumulates on the throttle with motor body assembly and the intake air volume decreases, the ISC learning amount is increased to maintain the idling speed. If this situation continues, the ISC learning amount reaches the upper limit, the idling speed cannot be maintained causing idling to become unstable, and the engine may stall. B --> See step 37 C --> See step 38 A: Go to next step
36. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY Check for foreign matter and signs that the throttle with motor body assembly was stuck, and also check that the valve and shaft move smoothly during operation. RESULT Result Proceed to Abnormal A Normal B HINT: Even if the results are normal, the throttle with motor body assembly may have been malfunctioning. Continue this inspection procedure until step 41, and if there are no problems with other parts, replace the throttle with motor body assembly (refer to step 56). B --> See step 38 A --> See step 86
37. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY Check if carbon is in the air flow passage of the throttle with motor body assembly. RESULT Result Proceed to Carbon in passage A No carbon in passage B HINT: Even if the results are normal, the throttle with motor body assembly may have been malfunctioning. Continue this inspection procedure until step 41, and if there are no problems with other parts, replace the throttle with motor body assembly (refer to step 56). B --> See step 38 A --> See step 87
38. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE OCV) Operate the VVT system through the Active Test, and check if the VVT system is operating normally. Perform the Active Test, referring to DTC P0011 inspection procedure (VVT system for intake camshaft). Refer to «PROCEDURE - Step 2»(ref-494127-S36710193102012081000000) . Perform the Active Test, referring to DTC P0014 inspection procedure (VVT system for exhaust camshaft). Refer to «PROCEDURE - Step 2»(ref-494127-S00757938322012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems. If the camshaft timing oil control valve is stuck ON, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall. NG --> See step 68 OK: Go to next step
39. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Suspected Area Proceed to IGN Advance Knock Correct Learn Value Differs from the current value of the vehicle by 10° or more Below 3° Engine coolant temperature sensor Mass air flow meter Knock sensor A 3° or more - B Differs from the current value of the vehicle by less than 10° - - HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. Even if the results are normal, the knock sensors may have been malfunctioning. If there are no problems with other parts, replace the knock sensors (refer to step 56). B --> See step 56 A: Go to next step
40. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Inspect the engine coolant temperature sensor. Refer to «INSPECTION»(ref-493956-S41646266622012081000000) . RESULT Result Proceed to Normal A Abnormal B B --> See step 85 A: Go to next step
41. INSPECT MASS AIR FLOW METER (INTAKE AIR TEMPERATURE SENSOR) Inspect the mass air flow meter (intake air temperature sensor). Refer to «INSPECTION»(ref-493956-S20324221552012081000000) . RESULT Result Proceed to Normal A Abnormal B B --> See step 77 A --> See step 88
42. CHECK TERMINAL VOLTAGE (FUEL INJECTOR CIRCUIT) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-494125-S18379370822012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) NG --> See step 71 OK: Go to next step
43. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY) Check the harnesses and connectors, referring to DTC P0351 inspection procedure. Refer to «PROCEDURE - Step 1»(ref-494127-S30673903182012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) NG --> See step 72 OK: Go to next step
44. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Idle Spark Advn Ctrl (#1 to #4) At least one cylinder shows a value of 4° or more Fuel injector system Ignition coil system A All cylinders show a value of less than 4° - B B --> See step 46 A: Go to next step
45. READ VALUE USING TECHSTREAM (IDLE SPARK ADVN CTRL #) Change the location of the ignition coil for the cylinder whose Idle Spark Advn Ctrl (#1 to #4) was 4° or more in step 44. Connect the Techstream to the DLC3. Start the engine. Using the Techstream, select [Idle Spark Advn Ctrl (#1 to #4)] of the Data List. RESULT Result Proceed to Same as result in step 44 A Different from result in step 44 B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. B --> See step 92 A: Go to next step
46. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Suspected Area Proceed to A/C Signal Air Conditioner FB Val Power Steering Signal A/C Signal display changes from OFF to ON Value displayed for Air Conditioner FB Val increases Does not change from OFF A/C system A Changes from OFF to ON Power steering system B A/C Signal display does not change from OFF Value displayed for Air Conditioner FB Val does not increase Changes from OFF to ON Does not change from OFF - HINT: Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data. The normal value for the ISC learning amount is engine displacement (liters) x 0.9. Even if the results are normal, the power steering system or the air conditioning system may have been malfunctioning. Continue this inspection procedure until step 48, and if there are no problems with other parts, inspect the power steering system and the air conditioning system (refer to step 56). A --> See step 73 B: Go to next step
47. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Suspected Area Proceed to Electrical Load Signal 1 Electrical Load Signal 3 Electric Load Feedback Val Difference between Engine Speed and Turbine Speed Vehicle Speed Electrical Load Signal display changes from OFF to ON*1, or Value displayed for Electric Load Feedback Val increases*1 Value displayed for Electric Load Feedback Val changes - - Electrical load signal circuit A Value displayed for Electric Load Feedback Val does not change At least 1 of the 5 sets of freeze frame data is below 100 RPM Below 25 km/h (15 mph) A/T system B 25 km/h (15 mph) or more - C All 5 sets of freeze frame data are 100 RPM or more - - C Electrical Load Signal display does not change from OFF, or Value displayed for Electric Load Feedback Val does not increase - At least 1 of the 5 sets of freeze frame data is below 100 RPM Below 25 km/h A/T system B 25 km/h or more - C All 5 sets of freeze frame data are 100 RPM or more - - C HINT: *1: If the Electrical Load Signal display changes from OFF to ON or the Electric Load Feedback Val increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM. If the vehicle speed is 25 km/h (15 mph) or less and the difference between Engine Speed and SPD (NT) is 100 RPM or less, inspect the automatic transaxle. (Depending on the rate of vehicle deceleration, the engine speed may have decreased due to the A/T lock-up release being late.) The normal value for the ISC learning amount is engine displacement (liters) x 0.9. Even if the results are normal, the electrical load signal system and/or the A/T system may have been malfunctioning. Continue this inspection procedure until step 48, and if there are no problems with other parts, inspect the electrical load system and/or the A/T system (refer to step 56). B --> CHECK AUTOMATIC TRANSAXLE SYSTEM C --> See step 48 A --> See step 89
48. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Suspected Area Proceed to Shift SW Status (P or N) Neutral Position SW Signal P and N position are both OFF in at least one data set ON when Shift SW Status D or R Park/neutral position switch assembly A OFF when Shift SW Status D or R A/T system B All 5 sets of freeze frame data are ON - - C HINT: Even if the results are normal, the park/neutral position switch assembly and/or A/T system may have been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch assembly and/or A/T system (refer to step 56). B --> CHECK AUTOMATIC TRANSAXLE SYSTEM C --> See step 56 A --> See step 90
49. READ FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-493953-S33919775712012081000000) . RESULT Freeze Frame Data Item Result Suspected Area Proceed to Throttle Sensor Position, Calculate Load Calculate Load decreases while Throttle Sensor Position increases Mass air flow meter A Calculate Load does not decrease while Throttle Sensor Position increases - B B --> See step 51 A: Go to next step
50. INSPECT MASS AIR FLOW METER Remove the mass air flow meter. Check for foreign matter in the air flow passage of the mass air flow meter. RESULT Result Proceed to Visible foreign matter is present A Visible foreign matter is not present B Reinstall the mass air flow meter. HINT: Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 55, and if there are no problems with other parts, replace the mass air flow meter (refer to step 56). B --> See step 51 A --> See step 82
51. CHECK TERMINAL VOLTAGE (FUEL INJECTOR CIRCUIT) Check the harnesses and connectors, referring to Fuel Injector Circuit inspection procedure. Refer to «PROCEDURE - Step 1»(ref-494125-S18379370822012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) NG --> See step 74 OK: Go to next step
52. CHECK TERMINAL VOLTAGE (POWER SOURCE OF IGNITION COIL ASSEMBLY) Check the harnesses and connectors, referring to DTC P0351 inspection procedure. Refer to «PROCEDURE - Step 1»(ref-494127-S30673903182012081000000) . HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. Make sure there is not an excessive amount of force applied to the wire harness. A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.) NG --> See step 75 OK: Go to next step
53. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP/SPEED) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed. When performing the Active Test, check for an operating sound from the fuel suction with pump and gauge tube assembly. OK Control the Fuel Pump/Speed Specified Condition ON Operating sound heard OFF Operating sound not heard RESULT Result Proceed to Abnormal A Normal B HINT: Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur. While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell. If the fuel pump operating noise is abnormal, proceed to step 55 . B --> See step 55 A: Go to next step
54. INSPECT FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY (FUEL PUMP) Inspect the fuel suction with pump and gauge tube assembly. Refer to «INSPECTION»(ref-494129-S01883739502012081000000) . NG --> See step 76 OK --> See step 91
55. CHECK FUEL SYSTEM Check for foreign matter such as iron particles around the fuel suction with pump and gauge tube assembly, and for signs that the fuel suction with gauge tube assembly was stuck. RESULT Result Proceed to There is foreign matter or signs that fuel suction with pump gauge tube assembly was stuck A There is no foreign matter and no signs that fuel suction with pump gauge tube assembly was stuck B HINT: If there is foreign matter such as iron particles on the fuel suction with pump gauge tube assembly, remove the foreign matter. B --> See step 56 A --> REPAIR OR REPLACE FUEL SYSTEM
56. REPLACE MALFUNCTIONING PARTS If the malfunction could not be identified in steps 3 to 24, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 6 Brake booster replacement Step 8 Mass air flow meter replacement Step 9 Air fuel ratio sensor replacement Step 16 Engine coolant temperature sensor replacement Step 18 Purge VSV replacement Step 24 Fuel Suction with Pump and Gauge Tube Assembly replacement If the malfunction could not be identified in steps 25 to 34, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 26 Mass air flow meter replacement Step 27 Air fuel ratio sensor replacement Step 34 Engine coolant temperature sensor replacement If the malfunction could not be identified in steps 35 to 41, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 36, 37 Throttle with motor body assembly replacement Step 39 Knock sensor replacement If the malfunction could not be identified in steps 42 to 48, inspect and repair the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 46 A/C system inspection and repair Power steering system inspection and repair Step 47 Electrical load system inspection and repair A/T system inspection and repair Step 48 Park/neutral position switch inspection and repair A/T system inspection and repair If the malfunction could not be identified in steps 49 to 55, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed. Performed Step Inspection or Part to Replace Step 50 Mass air flow meter replacement HINT: Referring to the chart, inspect and repair or replace the part from the step where an inspection was performed. NEXT: Go to next step
57. CLEAR DTC Connect the Techstream to the DLC3. Turn the ignition switch to ON. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-493953-S27327777792012081000000) . NEXT: Go to next step
58. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Check if engine stall symptoms are present. HINT: If any engine stall symptoms are present, recheck for DTCs and freeze frame data and perform an inspection. NG --> REPAIR OR REPLACE MALFUNCTIONING PARTS OK --> END
59. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-493953-S38664206892012081000000)
60. INSPECT PURGE VSV. Refer to «INSPECTION»(ref-494114-S37486049182012081000000)
61. REPLACE BRAKE BOOSTER ASSEMBLY. Refer to «REMOVAL»(ref-494102-S13840346022012081000000)
62. REPAIR POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 2»(ref-494127-S35024284522012081000000)
63. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-493956-S22890663962012081000000)
64. REPLACE PURGE VSV. Refer to «REMOVAL»(ref-494114-S13699572722012081000000)
65. REPAIR POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 25»(ref-494125-S34757614642012081000000)
66. REPLACE FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY. Refer to «REMOVAL»(ref-494129-S42668693052012081000000)
67. REPAIR POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 2»(ref-494127-S35024284522012081000000)
68. REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (INTAKE OR EXHAUST CAMSHAFT). Refer to «REMOVAL»(ref-493956-S00975655292012081000000)
69. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-493956-S20094363372012081000000)
70. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-493956-S01163412562012081000000)
71. CHECK FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-494125-S31157331672012081000000)
72. REPAIR IGNITION COIL POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 1»(ref-494127-S30673903182012081000000)
73. CHECK AIR CONDITIONING SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-494132-S21110520112012081000000)
74. CHECK FUEL INJECTOR CIRCUIT. Refer to «Fuel Injector Circuit»(ref-494125-S31157331672012081000000)
75. REPAIR POWER SOURCE CIRCUIT. Refer to «PROCEDURE - Step 1»(ref-494127-S30673903182012081000000)
76. REPLACE FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY. Refer to «REMOVAL»(ref-494129-S42668693052012081000000)
77. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-493956-S01163412562012081000000)
78. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-494108-S14634786422012081000000)
79. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-493956-S20094363372012081000000)
80. REPLACE ECM. Refer to «REMOVAL»(ref-493956-S41779092162012081000000)
81. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(ref-494125-S21237003782012081000000)
82. REPLACE MASS AIR FLOW METER. Refer to «REMOVAL»(ref-493956-S01163412562012081000000)
83. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-493956-S22890663962012081000000)
84. REPLACE THERMOSTAT. Refer to «REMOVAL»(ref-494108-S14634786422012081000000)
85. REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to «REMOVAL»(ref-493956-S20094363372012081000000)
86. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY. Refer to «REMOVAL»(ref-493956-S35247803402012081000000)
87. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY. Refer to «REMOVAL»(ref-493956-S35247803402012081000000)
88. REPLACE KNOCK SENSOR. Refer to «REMOVAL»(ref-493956-S10199874952012081000000)
89. CHECK GENERATOR CIRCUIT. Refer to «PROBLEM SYMPTOMS TABLE»(ref-494112-S30037604072012081000000)
90. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-494121-S24452870572012081000000)
91. CHECK FUEL PUMP CONTROL CIRCUIT. Refer to «Fuel Pump Control Circuit»(ref-494125-S21237003782012081000000)
92. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL»(ref-493956-S22922283572012081000000)