MONITOR STRATEGY
| Related DTCs | P2118: Throttle actuator power supply |
| Required Sensors / Components (Main) | Throttle actuator, throttle valve (throttle body assembly), ETCS fuse |
| Required Sensors / Components (Related) | None |
| Frequency of Operation | Continuous |
| Duration | 0.8 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
| Monitor runs whenever following DTCs are not present | None |
| Battery voltage | 8 V or higher |
| Electronic throttle actuator power | ON |
TYPICAL MALFUNCTION THRESHOLDS
| Throttle actuator power supply voltage (+BM) | Below 4 V |
COMPONENT OPERATING RANGE
| Throttle actuator power supply voltage (+BM) | 11 to 14 V |
Scheme 101
Scheme 101: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and turn the Techstream off.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine.
- Slowly depress the accelerator pedal, raise the engine speed to approximately 3000 RPM for approximately 5 seconds, and then idle the engine [B].
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2118.
- Check the DTC judgment result [C]. 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] and [C] again.
- If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
FAIL-SAFE
When this DTC or other DTCs relating to electronic throttle control system malfunctions, are stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly. Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.
Scheme 102
Scheme 102: WIRING DIAGRAM
PROCEDURE
- READ VALUE USING TECHSTREAM (+BM VOLTAGE) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / +BM voltage. Read the value displayed on the Techstream. Standard Voltage 11 to 14 V NG --> See step 2 OK --> See step 3
- CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) Disconnect the ECM connectors. Measure the voltage according to the value(s) in the table below. Standard voltage Tester Connection Condition Specified Condition A55-3 (+BM) - Body ground Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Tester Connection Condition Specified Condition B50-20 (ME01) - Body ground Always Below 1 ohms B50-81 (E1) - Body ground Always Below 1 ohms Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BATTERY, BODY GROUND) OK --> See step 4
- CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
| Related DTCs | P2119: Electronic throttle control system malfunction |
| Required Sensors / Components (Main) | Throttle actuator (throttle body assembly) |
| Required Sensors / Components (Related) | |
| Frequency of Operation | Continuous |
| Duration | 1 second |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| System guard* judge condition | ON |
| *System guard is ON when the following conditions set | |
| Throttle actuator | ON |
| Throttle actuator duty calculation | Executing |
| Throttle position sensor fail | Not detected |
| Throttle actuator current-cut operation | Not executing |
| Throttle actuator power supply | 4 V or more |
| Throttle actuator fail | Not detected |
| Either of the following conditions A or B is met | |
| A. Commanded closed throttle position - current closed throttle position | 0.3 V or more |
| B. Commanded open throttle position - current open throttle position | 0.3 V or more |
Scheme 103
Scheme 103: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and turn the Techstream off.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine.
- Idle the engine for 20 seconds.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2119.
- Check the DTC judgment result [B]. 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal 3 times, and then check the DTC judgment result at step [C].
- If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
The ECM continues operating in fail-safe mode until a pass condition is detected, and the ignition switch is then turned off.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119) 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 the DTCs. Result Result Proceed to DTC P2119 is output A DTC P2119 and other DTCs are output B HINT: If any DTCs other than P2119 are output, troubleshoot those DTCs first. B --> See step 8 A: Go to next step
- READ VALUE USING TECHSTREAM (THROTTLE POSITION) 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-428881-S23178403412011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1 and Throttle Position Command. Check the values displayed on the Techstream while fully depressing and releasing the accelerator pedal quickly. RESULT Result Proceed to Throttle Position No. 1 does not change A Throttle Position No. 1 changes even a little B HINT: When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation. B --> See step 4 A: Go to next step
- INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle body assembly. Refer to «INSPECTION»(ref-428889-S12060563592011101200000) . NG --> See step 6 OK: Go to next step
- INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 6 OK: Go to next step
- READ VALUE USING TECHSTREAM (THROTTLE POSITION) 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-428881-S23178403412011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command. Check the values displayed on the Techstream while wiggling the ECM wire harness. Enter the following menus: Powertrain / Engine / Trouble Codes. Check for DTCs. RESULT Result Proceed to Value in Data List changes when wire harness is wiggled, or DTC is output* A Other than above B *: As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-428782-S21492416292011101200000) . B --> See step 7 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
- REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly. Refer to «REMOVAL»(ref-428889-S19516729622011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) 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-428881-S23178403412011101200000) . Allow the engine to idle for 15 seconds. Fully depress and release the accelerator pedal several times quickly. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P2119 is output B B --> See step 9 A --> END
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S09869597972011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
| Related DTCs | P2119: Electronic throttle control system malfunction |
| Required Sensors / Components (Main) | Throttle actuator (throttle body assembly) |
| Required Sensors / Components (Related) | |
| Frequency of Operation | Continuous |
| Duration | 1 second |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| System guard* judge condition | ON |
| *System guard is ON when the following conditions set | |
| Throttle actuator | ON |
| Throttle actuator duty calculation | Executing |
| Throttle position sensor fail | Not detected |
| Throttle actuator current-cut operation | Not executing |
| Throttle actuator power supply | 4 V or more |
| Throttle actuator fail | Not detected |
| Either of the following conditions A or B is met | |
| A. Commanded closed throttle position - current closed throttle position | 0.3 V or more |
| B. Commanded open throttle position - current open throttle position | 0.3 V or more |
CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the Clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and turn the Techstream off.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine.
- Idle the engine for 20 seconds.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2119.
- Check the DTC judgment result [B]. 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal 3 times, and then check the DTC judgment result at step [C].
- If the test result is UNKNOWN, enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read Pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 6° throttle angle by the return spring. The ECM then adjusts the engine output by controlling the fuel injection (intermittent fuel-cut) and ignition timing, in accordance with the accelerator pedal opening angle, to allow the vehicle to continue running at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
The ECM continues operating in fail-safe mode until a pass condition is detected, and the ignition switch is then turned off.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119) 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 the DTCs. Result Result Proceed to DTC P2119 is output A DTC P2119 and other DTCs are output B HINT: If any DTCs other than P2119 are output, troubleshoot those DTCs first. B --> See step 8 A: Go to next step
- READ VALUE USING TECHSTREAM (THROTTLE POSITION) 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-428881-S06483383612011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1 and Throttle Position Command. Check the values displayed on the Techstream while fully depressing and releasing the accelerator pedal quickly. RESULT Result Proceed to Throttle Position No. 1 does not change A Throttle Position No. 1 changes even a little B HINT: When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation. B --> See step 4 A: Go to next step
- INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle body assembly. Refer to «INSPECTION»(ref-428889-S12060563592011101200000) . NG --> See step 6 OK: Go to next step
- INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and housing. If necessary, clean the throttle body. Also, check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 6 OK: Go to next step
- READ VALUE USING TECHSTREAM (THROTTLE POSITION) 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-428881-S06483383612011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command. Check the values displayed on the Techstream while wiggling the ECM wire harness. Enter the following menus: Powertrain / Engine / Trouble Codes. Check for DTCs. RESULT Result Proceed to Value in Data List changes when wire harness is wiggled, or DTC is output* A Other than above B *: As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-428782-S21492416292011101200000) . B --> See step 7 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
- REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly. Refer to «REMOVAL»(ref-428889-S26076023702011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) 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-428881-S06483383612011101200000) . Allow the engine to idle for 15 seconds. Fully depress and release the accelerator pedal several times quickly. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P2119 is output B B --> See step 9 A --> END
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S08160572302011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
| Related DTCs | P2120: Accelerator Pedal Position (APP) sensor 1 range check (chattering) P2122: APP sensor 1 range check (low voltage) P2123: APP sensor 1 range check (high voltage) P2125: APP sensor 2 range check (chattering) P2127: APP sensor 2 range check (low voltage) P2128: APP sensor 2 range check (high voltage) P2138: APP sensor range check (correlation) |
| Required Sensors/Components (Main) | APP sensor |
| Required Sensors/Components (Sub) | |
| Frequency of Operation | Continuous |
| Duration | Accelerator Pedal Position (APP) sensor 1 range check (chattering): 0.5 seconds APP sensor 1 range check (low voltage): 0.5 seconds APP sensor 1 range check (high voltage): 2 seconds APP sensor 2 range check (chattering): 0.5 seconds APP sensor 2 range check (low voltage): 0.5 seconds APP sensor 2 range check (high voltage): 2 seconds APP sensor range check (correlation): 2 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Ignition switch | ON |
| Electronic throttle actuator power | ON |
| One of the following conditions is met | |
| VPA voltage when VPA2 is 0.04 V or more | 0.4 V or less |
| VPA voltage | 4.8 V or more |
| VPA voltage when VPA2 is 0.04 V or more | 0.4 V or less |
| One of the following conditions is met | |
| VPA2 voltage when VPA 0.04 V or more | 1.2 V or less |
| VPA2 voltage when VPA 0.4 to 3.45 V | 4.8 V or more |
| VPA2 voltage when VPA is 0.04 V or more | 1.2 V or less |
| VPA2 voltage when VPA is 0.4 to 3.45 V | 4.8 V or more |
| Either of the following conditions A or B is met | |
| Condition A | |
| Difference between VPA and VPA 2 voltages | 0.02 V or less |
| Condition B | |
| VPA voltage | 0.4 V or less |
| VPA2 voltage | 1.2 V or less |
| VPA voltage | More than 0.4 V, and less than 4.8 V |
| VPA2 voltage | More than 1.2 V, and less than 4.8 V |
| Difference between VPA and VPA2 voltages | More than 0.02 V |
Scheme 104
Scheme 104: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Fully depress and release the accelerator pedal [B].
- Check that 5 seconds or more have elapsed since the DTCs were cleared.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs [C].
- If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2120, P2122, P2123, P2125, P2127, P2128 or P2138.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
When any of DTCs P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138 are set, the ECM enters fail-safe mode. If either of the 2 sensor circuits malfunctions, the ECM uses the remaining circuit to calculate the accelerator pedal position to allow the vehicle to continue driving. If both of the circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.
Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.
Scheme 105
Scheme 105: WIRING DIAGRAM
| Related DTCs | P2120: Accelerator Pedal Position (APP) sensor 1 range check (chattering) P2122: APP sensor 1 range check (low voltage) P2123: APP sensor 1 range check (high voltage) P2125: APP sensor 2 range check (chattering) P2127: APP sensor 2 range check (low voltage) P2128: APP sensor 2 range check (high voltage) P2138: APP sensor range check (correlation) |
| Required Sensors/Components (Main) | APP sensor |
| Required Sensors/Components (Sub) | |
| Frequency of Operation | Continuous |
| Duration | Accelerator Pedal Position (APP) sensor 1 range check (chattering): 0.5 seconds APP sensor 1 range check (low voltage): 0.5 seconds APP sensor 1 range check (high voltage): 2 seconds APP sensor 2 range check (chattering): 0.5 seconds APP sensor 2 range check (low voltage): 0.5 seconds APP sensor 2 range check (high voltage): 2 seconds APP sensor range check (correlation): 2 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Ignition switch | ON |
| Electronic throttle actuator power | ON |
| One of the following conditions is met | |
| VPA voltage when VPA2 is 0.04 V or more | 0.4 V or less |
| VPA voltage | 4.8 V or more |
| VPA voltage when VPA2 is 0.04 V or more | 0.4 V or less |
| One of the following conditions is met | |
| VPA2 voltage when VPA 0.04 V or more | 1.2 V or less |
| VPA2 voltage when VPA 0.4 to 3.45 V | 4.8 V or more |
| VPA2 voltage when VPA is 0.04 V or more | 1.2 V or less |
| VPA2 voltage when VPA is 0.4 to 3.45 V | 4.8 V or more |
| Either of the following conditions A or B is met | |
| Condition A | |
| Difference between VPA and VPA 2 voltages | 0.02 V or less |
| Condition B | |
| VPA voltage | 0.4 V or less |
| VPA2 voltage | 1.2 V or less |
| VPA voltage | More than 0.4 V, and less than 4.8 V |
| VPA2 voltage | More than 1.2 V, and less than 4.8 V |
| Difference between VPA and VPA2 voltages | More than 0.02 V |
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Fully depress and release the accelerator pedal [B].
- Check that 5 seconds or more have elapsed since the DTCs were cleared.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs [C].
- If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2120, P2122, P2123, P2125, P2127, P2128 or P2138.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
When any of DTCs P2120, P2121, P2122, P2123, P2125, P2127, P2128 and P2138 are set, the ECM enters fail-safe mode. If either of the 2 sensor circuits malfunctions, the ECM uses the remaining circuit to calculate the accelerator pedal position to allow the vehicle to continue driving. If both of the circuits malfunction, the ECM regards the accelerator pedal as being released. As a result, the throttle valve is closed and the engine idles.
Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.
- READ VALUE USING TECHSTREAM (ACCEL SENSOR OUT NO. 1 AND ACCEL SENSOR OUT NO. 2) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Accel Sensor Out No. 1 and Accel Sensor Out No. 2. Read the value displayed on the Techstream. Standard voltage Accelerator Pedal Operations Accel Sensor Out No. 1 Accel Sensor Out No. 2 Released 0.5 to 1.1 V 1.2 to 2.0 V Depressed 2.6 to 4.5 V 3.4 to 5.0 V OK --> See step 8 NG: Go to next step
- CHECK HARNESS AND CONNECTOR (ACCELERATOR PEDAL POSITION SENSOR - ECM) Disconnect the Accelerator Pedal Position (APP) sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Tester Connection Condition Specified Condition A19-6 (VPA) - A55-55 (VPA) Always Below 1 ohms A19-5 (EPA) - A55-59 (EPA) Always Below 1 ohms A19-4 (VCPA) - A55-57 (VCPA) Always Below 1 ohms A19-3 (VPA2) - A55-56 (VPA2) Always Below 1 ohms A19-2 (EPA2) - A55-60 (EPA2) Always Below 1 ohms A19-1 (VCP2) - A55-58 (VCP2) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition A19-6 (VPA) or A55-55 (VPA) - Body ground Always 10 kohms or higher A19-5 (EPA) or A55-59 (EPA) - Body ground Always 10 kohms or higher A19-4 (VCPA) or A55-57 (VCPA) - Body ground Always 10 kohms or higher A19-3 (VPA2) or A55-56 (VPA2) - Body ground Always 10 kohms or higher A19-2 (EPA2) or A55-60 (EPA2) - Body ground Always 10 kohms or higher A19-1 (VCP2) or A55-58 (VCP2) - Body ground Always 10 kohms or higher Reconnect the APP sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- INSPECT ACCELERATOR POSITION SENSOR (VCPA AND VCP2 VOLTAGE) Disconnect the APP sensor 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 A19-4 (VCPA) - A19-5 (EPA) Ignition switch ON 4.5 to 5.0 V A19-1 (VCP2) - A19-2 (EPA2) Ignition switch ON 4.5 to 5.0 V Reconnect the APP sensor connector. NG --> See step 6 OK: Go to next step
- REPLACE ACCELERATOR PEDAL ASSEMBLY (ACCELERATOR PEDAL POSITION SENSOR) Replace the accelerator pedal assembly. Refer to «REMOVAL»(ref-428889-S10416808592011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2120, P2122, P2123, P2125, P2127, P2128, and/or P2138 is output A DTC is not output B B --> END A --> See step 7
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)
| Related DTCs | P2121: Accelerator pedal position (APP) sensor rationality |
| Required Sensors/Components (Main) | APP sensor |
| Required Sensors/Components (Sub) | |
| Frequency of Operation | Continuous |
| Duration | 0.5 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| APP sensor circuit fail (P2120, P2122, P2123, P2125, P2127, P2128, P2138) | Not detected |
| Either of the following conditions is met | Condition (a) or (b) |
| (a) Ignition switch | ON |
| (b) Electronic throttle actuator power | ON |
| Difference between VPA1 voltage (learned value) and VPA2 voltage (learned value) | Less than 0.4 V, or more than 1.2 V |
Scheme 106
Scheme 106: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream ON.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Fully depress and release the accelerator pedal [B].
- Check that 20 seconds or more have elapsed since the DTCs were cleared.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs [C].
- If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2121.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
The accelerator pedal position sensor has 2 (main and sub) sensor circuits. If a malfunction occurs in either of the sensor circuits, the ECM detects the abnormal signal voltage difference between the two sensor circuits and switches to limp mode. In limp mode, the functioning circuit is used to calculate the accelerator pedal opening angle to allow the vehicle to continue driving. If both circuits malfunction, the ECM regards the opening angle of the accelerator pedal as being fully closed. In this case, the throttle valve remains closed as if the engine is idling.
If a pass condition is detected and then the ignition switch is turned off, the fail-safe operation stops and the system returns to a normal condition.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2121) 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 the DTCs. Result Result Proceed to DTC P2121 is output A DTC P2121 and other DTCs are output B HINT: If any DTC other than P2121 are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
- READ VALUE USING TECHSTREAM (ACCEL SENSOR OUT NO. 1 AND ACCEL SENSOR OUT NO. 2) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Accel Sensor Out No. 1 and Accel Sensor Out No. 2. Read the values displayed on the Techstream. Standard voltage Accelerator Pedal Operations Accel Sensor Out No. 1 Accel Sensor Out No. 2 Released 0.5 to 1.1 V 1.2 to 2.0 V Depressed 2.6 to 4.5 V 3.4 to 5.0 V OK --> See step 7 NG: Go to next step
- CHECK HARNESS AND CONNECTOR (ACCELERATOR PEDAL POSITION SENSOR - ECM) Disconnect the Accelerator Pedal Position (APP) sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Tester Connection Condition Specified Condition A19-6 (VPA) - A55-55 (VPA) Always Below 1 ohms A19-5 (EPA) - A55-59 (EPA) Always Below 1 ohms A19-4 (VCPA) - A55-57 (VCPA) Always Below 1 ohms A19-3 (VPA2) - A55-56 (VPA2) Always Below 1 ohms A19-2 (EPA2) - A55-60 (EPA2) Always Below 1 ohms A19-1 (VCP2) - A55-58 (VCP2) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition A19-6 (VPA) or A55-55 (VPA) - Body ground Always 10 kohms or higher A19-5 (EPA) or A55-59 (EPA) - Body ground Always 10 kohms or higher A19-4 (VCPA) or A55-57 (VCPA) - Body ground Always 10 kohms or higher A19-3 (VPA2) or A55-56 (VPA2) - Body ground Always 10 kohms or higher A19-2 (EPA2) or A55-60 (EPA2) - Body ground Always 10 kohms or higher A19-1 (VCP2) or A55-58 (VCP2) - Body ground Always 10 kohms or higher Reconnect the APP sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Refer to «REMOVAL»(ref-428889-S10416808592011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2121 is output A DTC is not output B B --> END A --> See step 8
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S09869597972011101200000)
- CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
| Related DTCs | P2121: Accelerator pedal position (APP) sensor rationality |
| Required Sensors/Components (Main) | APP sensor |
| Required Sensors/Components (Sub) | |
| Frequency of Operation | Continuous |
| Duration | 0.5 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| APP sensor circuit fail (P2120, P2122, P2123, P2125, P2127, P2128, P2138) | Not detected |
| Either of the following conditions is met | Condition (a) or (b) |
| (a) Ignition switch | ON |
| (b) Electronic throttle actuator power | ON |
| Difference between VPA1 voltage (learned value) and VPA2 voltage (learned value) | Less than 0.4 V, or more than 1.2 V |
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream ON.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Fully depress and release the accelerator pedal [B].
- Check that 20 seconds or more have elapsed since the DTCs were cleared.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs [C].
- If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2121.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
The accelerator pedal position sensor has 2 (main and sub) sensor circuits. If a malfunction occurs in either of the sensor circuits, the ECM detects the abnormal signal voltage difference between the two sensor circuits and switches to limp mode. In limp mode, the functioning circuit is used to calculate the accelerator pedal opening angle to allow the vehicle to continue driving. If both circuits malfunction, the ECM regards the opening angle of the accelerator pedal as being fully closed. In this case, the throttle valve remains closed as if the engine is idling.
If a pass condition is detected and then the ignition switch is turned off, the fail-safe operation stops and the system returns to a normal condition.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2121) 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 the DTCs. Result Result Proceed to DTC P2121 is output A DTC P2121 and other DTCs are output B HINT: If any DTC other than P2121 are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
- READ VALUE USING TECHSTREAM (ACCEL SENSOR OUT NO. 1 AND ACCEL SENSOR OUT NO. 2) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / All Data / Accel Sensor Out No. 1 and Accel Sensor Out No. 2. Read the values displayed on the Techstream. Standard voltage Accelerator Pedal Operations Accel Sensor Out No. 1 Accel Sensor Out No. 2 Released 0.5 to 1.1 V 1.2 to 2.0 V Depressed 2.6 to 4.5 V 3.4 to 5.0 V OK --> See step 7 NG: Go to next step
- CHECK HARNESS AND CONNECTOR (ACCELERATOR PEDAL POSITION SENSOR - ECM) Disconnect the Accelerator Pedal Position (APP) sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for open) Tester Connection Condition Specified Condition A19-6 (VPA) - A55-55 (VPA) Always Below 1 ohms A19-5 (EPA) - A55-59 (EPA) Always Below 1 ohms A19-4 (VCPA) - A55-57 (VCPA) Always Below 1 ohms A19-3 (VPA2) - A55-56 (VPA2) Always Below 1 ohms A19-2 (EPA2) - A55-60 (EPA2) Always Below 1 ohms A19-1 (VCP2) - A55-58 (VCP2) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition A19-6 (VPA) or A55-55 (VPA) - Body ground Always 10 kohms or higher A19-5 (EPA) or A55-59 (EPA) - Body ground Always 10 kohms or higher A19-4 (VCPA) or A55-57 (VCPA) - Body ground Always 10 kohms or higher A19-3 (VPA2) or A55-56 (VPA2) - Body ground Always 10 kohms or higher A19-2 (EPA2) or A55-60 (EPA2) - Body ground Always 10 kohms or higher A19-1 (VCP2) or A55-58 (VCP2) - Body ground Always 10 kohms or higher Reconnect the APP sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- REPLACE ACCELERATOR PEDAL ASSEMBLY Replace the accelerator pedal assembly. Refer to «REMOVAL»(ref-428889-S10416808592011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2121 is output A DTC is not output B B --> END A --> See step 8
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S08160572302011101200000)
- CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
| Related DTCs | P2195: A/F sensor (Bank 1) signal stuck lean P2196: A/F sensor (Bank 1) signal stuck rich P2197: A/F sensor (Bank 2) signal stuck lean P2198: A/F sensor (Bank 2) signal stuck rich |
| Required Sensors/Components (Main) | A/F sensor |
| Required Sensors/Components (Related) | HO2 sensor |
| Frequency of Operation | Continuous |
| Duration | 3 seconds: Sensor current 5 seconds: Sensor voltage |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052 (A/F sensor heater) P0102, P0103 (MAF meter) P0112, P0113 (IAT sensor) P0115, P0117, P0118 (ECT sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor) P0125 (Insufficient ECT for closed loop) P0128 (Thermostat) P0171, P0172, P0174, P0175 (Fuel system) P0301, P0302, P0303, P0304, P0305, P0306 (Misfire) P0335 (CKP sensor) P0340 (Camshaft position sensor) P0451, P0452, P0453 (EVAP system) P0500 (Vehicle speed sensor) P0505 (Idle speed control) |
| Time after engine start | 30 seconds or more |
| A/F sensor status | Activated |
| Fuel system status | Closed-loop |
SENSOR VOLTAGE DETECTION MONITOR
| Battery voltage | 11 V or more |
| ECT | 75°C (167°F) or more |
| Atmospheric pressure | 76 kPa (570 mmHg) or more |
| A/F sensor status | Activated |
| Continuous time of fuel cut | 3 to 10 seconds |
SENSOR CURRENT DETECTION MONITOR
| Rear heated oxygen sensor voltage | 0.21 V or more |
| A/F sensor voltage | More than 3.8 V |
SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195, P2197)
| Rear heated oxygen sensor voltage | Below 0.59 V |
| A/F sensor voltage | Less than 2.8 V |
SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196, P2198)
| A/F sensor current | 3.6 mA or more |
SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195, P2197)
| A/F sensor current | Less than 1.4 mA |
SENSOR CURRENT DETECTION MONITOR (LOW SIDE MALFUNCTION P2196, P2198)
MONITOR RESULT
Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .
Scheme 107
Scheme 107: WIRING DIAGRAM
| WARNING | Strictly observe posted speed limits, traffic laws, and road conditions when performing these drive patterns. |
This confirmation driving pattern is used in the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.
Scheme 108
Scheme 109
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on.
- Start the engine, and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
- On the Techstream, enter the following menus to check the fuel-cut status: Powertrain / Engine / Data List / All Data / Idle Fuel Cut.
- Drive the vehicle at between 38 and 75 mph (60 and 120 km/h) for at least 10 minutes [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
- Change the transmission to the 2nd gear [C].
- Accelerate the vehicle to 40 mph (64 km/h) or more by depressing the accelerator pedal for at least 10 seconds [D].
- Soon after performing step [D] above, release the accelerator pedal for at least 5 seconds without depressing the brake pedal in order to execute fuel-cut control [E]. HINT: Fuel-cut is performed when the following conditions are met: Accelerator pedal is fully released. Engine speed is 2500 RPM or more (fuel injection returns at 1000 RPM).
- Allow the vehicle to decelerate until the vehicle speed decreases to less than 6 mph (10 km/h).
- Repeat steps [C] through [E] above at least 3 times in one driving cycle.
- Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [F].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2195, P2196, P2197 or P2198.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [E].
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
| Related DTCs | P2195: A/F sensor (Bank 1) signal stuck lean P2196: A/F sensor (Bank 1) signal stuck rich P2197: A/F sensor (Bank 2) signal stuck lean P2198: A/F sensor (Bank 2) signal stuck rich |
| Required Sensors/Components (Main) | A/F sensor |
| Required Sensors/Components (Related) | HO2 sensor |
| Frequency of Operation | Continuous |
| Duration | 3 seconds: Sensor current 5 seconds: Sensor voltage |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052 (A/F sensor heater) P0102, P0103 (MAF meter) P0112, P0113 (IAT sensor) P0115, P0117, P0118 (ECT sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor) P0125 (Insufficient ECT for closed loop) P0128 (Thermostat) P0171, P0172, P0174, P0175 (Fuel system) P0301, P0302, P0303, P0304, P0305, P0306 (Misfire) P0335 (CKP sensor) P0340 (Camshaft position sensor) P0451, P0452, P0453 (EVAP system) P0500 (Vehicle speed sensor) P0505 (Idle speed control) |
| Time after engine start | 30 seconds or more |
| A/F sensor status | Activated |
| Fuel system status | Closed-loop |
SENSOR VOLTAGE DETECTION MONITOR
| Battery voltage | 11 V or more |
| ECT | 75°C (167°F) or more |
| Atmospheric pressure | 76 kPa (570 mmHg) or more |
| A/F sensor status | Activated |
| Continuous time of fuel cut | 3 to 10 seconds |
SENSOR CURRENT DETECTION MONITOR
| Rear heated oxygen sensor voltage | 0.21 V or more |
| A/F sensor voltage | More than 3.8 V |
SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195, P2197)
| Rear heated oxygen sensor voltage | Below 0.59 V |
| A/F sensor voltage | Less than 2.8 V |
SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196, P2198)
| A/F sensor current | 3.6 mA or more |
SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195, P2197)
| A/F sensor current | Less than 1.4 mA |
SENSOR CURRENT DETECTION MONITOR (LOW SIDE MALFUNCTION P2196, P2198)
Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .
| WARNING | Strictly observe posted speed limits, traffic laws, and road conditions when performing these drive patterns. |
This confirmation driving pattern is used in the "Perform Confirmation Driving Pattern" procedure of the following diagnostic troubleshooting procedure.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on.
- Start the engine, and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
- On the Techstream, enter the following menus to check the fuel-cut status: Powertrain / Engine / Data List / All Data / Idle Fuel Cut.
- Drive the vehicle at between 38 and 75 mph (60 and 120 km/h) for at least 10 minutes [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
- Change the transmission to the 2nd gear [C].
- Accelerate the vehicle to 40 mph (64 km/h) or more by depressing the accelerator pedal for at least 10 seconds [D].
- Soon after performing step [D] above, release the accelerator pedal for at least 5 seconds without depressing the brake pedal in order to execute fuel-cut control [E]. HINT: Fuel-cut is performed when the following conditions are met: Accelerator pedal is fully released. Engine speed is 2500 RPM or more (fuel injection returns at 1000 RPM).
- Allow the vehicle to decelerate until the vehicle speed decreases to less than 6 mph (10 km/h).
- Repeat steps [C] through [E] above at least 3 times in one driving cycle.
- Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [F].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2195, P2196, P2197 or P2198.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [E].
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195, P2196, 2197 OR P2198) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2195, P2196, P2197 or P2198 is output A DTC P2195, P2196, P2197 or P2198 and P0136, P0137, P0138, P0156, P0157 or P0158 are output A DTC P2195, P2196, P2197 or P2198 and other DTCs are output B HINT: If any DTCs other than P2195, P2196, P2197 or P2198 are output, troubleshoot those DTCs first. B --> See step 10 A: Go to next step
- READ VALUE USING TECHSTREAM (TEST VALUE OF A/F SENSOR) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Allow the vehicle to drive in accordance with the driving pattern described in the Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine / Monitor / O2 Sensor. Check that the Status2 of O2 Sensor is Complete. If the status is still Incomplete, perform the driving pattern increasing the vehicle speed and using second gear to decelerate the vehicle. Enter the following menus: Powertrain / Engine / Monitor / O2 Sensor / Details / RANGE B1S1 and RANGE B2S1. Check the test value of the A/F sensor output current during fuel-cut. Result Result Proceed to Within normal range (1.4 mA or more, and less than 3.6 mA) A Outside normal range (Less than 1.4 mA, or 3.6 mA or more) B B --> See step 18 A: Go to next step
- READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF A/F SENSOR) Connect Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the Air-Fuel Ratio (A/F) sensor at an engine speed of 2500 RPM for 90 seconds. On the Techstream, enter the following menus: Powertrain / Engine / Data List / All Data / AFS Voltage B1S1 or AFS Voltage B2S1 and Engine Speed. Check the A/F sensor voltage three times, when the engine is in each of the following conditions: While idling (check for at least 30 seconds) [A]. At an engine speed of approximately 2500 RPM (without any sudden changes in engine speed) [B]. Raise the engine speed to 4000 RPM and then quickly release the accelerator pedal so that the throttle valve is fully closed [C]. Standard Voltage Condition A/F Sensor Voltage Variation Reference [A] and [B] Changes at approximately 3.3 V Between 3.1 V and 3.5 V [C] Increases to 3.8 V or more This occurs during engine deceleration (when fuel-cut performed) HINT: For more information, see the diagrams below. If the output voltage of the A/F sensor remains at approximately 3.3 V (see 1 Malfunction Condition diagram) under any conditions, including those above, the A/F sensor may have an open circuit. (This will also happen if the A/F sensor heater has an open circuit.) If the output voltage of the A/F sensor remains at either approximately 3.8 V or more, or 2.8 V or less (see 1 Malfunction Condition diagram) under any conditions, including those above, the A/F sensor may have a short circuit. The ECM stops fuel injection (fuel cut) during engine deceleration. This causes a lean condition and results in a momentary increase in the A/F sensor output voltage. When the vehicle is driven: The output voltage of the A/F sensor may be below 2.8 V during fuel enrichment. For the vehicle, this translates to a sudden increase in speed with the accelerator pedal fully depressed when trying to overtake another vehicle. The A/F sensor is functioning normally. The A/F sensor is a current output element; therefore, the current is converted into a voltage inside the ECM. Measuring the voltage at the connectors of the A/F sensor or ECM will show a constant voltage result. NG --> See step 13 OK: Go to next step
- PERFORM CONFIRMATION DRIVING PATTERN 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-428881-S06483383612011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Start the engine and warm it up. Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (DTC P2195, P2196, P2197 OR P2198) Read the DTCs using Techstream. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC P2195, P2196, P2197, or P2198 is output A DTC is not output B B --> See step 9 A: Go to next step
- REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-428893-S38119987512011101200000) . NEXT: Go to next step
- PERFORM CONFIRMATION DRIVING PATTERN NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (DTC P2195, P2196, P2197 OR P2198) Read the DTCs using Techstream. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P2195, P2196, P2197, or P2198 is output B B --> See step 11 A --> END
- CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST Has the vehicle run out of fuel in the past? NO --> See step 12 YES --> DTC CAUSED BY RUNNING OUT OF FUEL
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S08160572302011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-428881-S18607069502011101200000)
- INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the A/F sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Bank 1 Sensor 1) Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA1A) - 4 (A1A-) Always 10 kohms or higher Standard Resistance (Bank 2 Sensor 1) Tester Connection Condition Specified Condition 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher Reconnect the A/F sensor connector. NG --> See step 21 OK: Go to next step
- CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) Disconnect the A/F sensor 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 B32-1 (HA1A) - B50-86 (HA1A) Always Below 1 ohms B32-3 (A1A+) - B50-93 (A1A+) Always Below 1 ohms B32-4 (A1A-) - B50-116 (A1A-) Always Below 1 ohms B26-1 (HA2A) - B50-109 (HA2A) Always Below 1 ohms B26-3 (A2A+) - B50-120 (A2A+) Always Below 1 ohms B26-4 (A2A-) - B50-119 (A2A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B32-1 (HA1A) or B50-86 (HA1A) - Body ground Always 10 kohms or higher B32-3 (A1A+) or B50-93 (A1A+) - Body ground Always 10 kohms or higher B32-4 (A1A-) or B50-116 (A1A-) - Body ground Always 10 kohms or higher B26-1 (HA2A) or B50-109 (HA2A) - Body ground Always 10 kohms or higher B26-3 (A2A+) or B50-120 (A2A+) - Body ground Always 10 kohms or higher B26-4 (A2A-) or B50-119 (A2A-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the A/F sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- CHECK AIR INDUCTION SYSTEM Check the air induction system for vacuum leakage. OK No leakage from the air induction system. NG --> REPAIR OR REPLACE AIR INDUCTION SYSTEM OK: Go to next step
- CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-428895-S35867406742011101200000) . NG --> REPAIR OR REPLACE FUEL SYSTEM OK: Go to next step
- INSPECT FUEL INJECTOR ASSEMBLY Check the fuel injector assembly injection (whether fuel volume is high or low, and whether injection pattern is poor). Refer to «INSPECTION»(ref-428891-S35895714442011101200000) . NG --> See step 22 OK: Go to next step
- REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-428893-S38119987512011101200000) . NEXT: Go to next step
- PERFORM CONFIRMATION DRIVING PATTERN 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-428881-S06483383612011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Start the engine and warm it up. Drive the vehicle referring to the Confirmation Driving Pattern. NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (DTC P2195, P2196, P2197 OR P2198) Read the DTCs using Techstream. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC P2195, P2196, P2197 or P2198 is output B B --> See step 23 A --> END
- REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-428893-S38119987512011101200000)
- REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-428891-S03480314972011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
| Related DTCs | P2237: A/F sensor (Bank 1) open circuit between A1A+ and A1A- P2238: A/F sensor (Bank 1) short circuit between A1A+ and A1A- P2238: A/F sensor (Bank 1) short circuit between A1A+ and GND P2238: A/F sensor (Bank 1) low admittance P2239: A/F sensor (Bank 1) short circuit between A1A+ and +B P2240: A/F sensor (Bank 2) open circuit between A2A+ and A2A- P2241: A/F sensor (Bank 2) short circuit between A2A+ and A2A- P2241: A/F sensor (Bank 2) short circuit between A2A+ and GND P2241: A/F sensor (Bank 2) low admittance P2242: A/F sensor (Bank 2) short circuit between A2A+ and +B P2252: A/F sensor (Bank 1) short circuit between A1A- and GND P2253: A/F sensor (Bank 1) short circuit between A1A- and +B P2255: A/F sensor (Bank 2) short circuit between A2A- and GND P2256: A/F sensor (Bank 2) short circuit between A2A- and +B |
| Required Sensors/Components (Main) | A/F sensor |
| Required Sensors/Components (Sub) | Engine Coolant Temperature (ECT) sensor, Crankshaft position sensor |
| Frequency of Operation | Continuous |
| Duration | 10 seconds: P2237, P2240, P2238 (low admittance), P2241 (low admittance) 5 seconds: Others |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052 (A/F sensor heater) P0102, P0103 (MAF meter) P0112, P0113 (IAT sensor) P0115, P0117, P0118 (ECT sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor) P0125 (Insufficient ECT for closed loop) P0128 (Thermostat) P0171, P0172, P0174, P0175 (Fuel system) P0301, P0302, P0303, P0304, P0305, P0306 (Misfire) P0335 (CKP sensor) P0340 (Camshaft position sensor) P0451, P0452, P0453 (EVAP system) P0500 (Vehicle speed sensor) P0505 (Idle speed control) |
| Estimated sensor temperature | 450 to 550°C (842 to 1022°F) |
| Engine | Running |
| Battery voltage | 11 V or higher |
P2237 AND P2240 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| Estimated sensor temperature | 700 to 800°C (1292 to 1472°F) |
| ECT | 5°C (41°F) or more (Varies with ECT at engine start) |
| Fuel-cut | Not executed |
P2238 AND P2241 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| Battery voltage | 11 V or higher |
| Ignition switch | ON |
| Time after Ignition switch is OFF to ON | 5 seconds or more |
| A/F sensor admittance | Below 0.002 1/ohms |
P2237 AND P2240 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| Air fuel ratio sensor admittance | Less than 0.015 1/ohms |
P2238 AND P2241 (LOW ADMITTANCE)
| A1A+/A2A+ terminal voltage | 0.5 V or less |
P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND GND/A2A+ AND GND)
| Difference between A1A+ and A1A-/A2A+ and A2A- terminal voltages | 0.1 V or less |
P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| A1A+/A2A+ terminal voltage | Higher than 4.5 V |
P2239 AND P2242 (SHORT CIRCUIT BETWEEN A1A+ AND +B/A2A- AND +B)
| A1A-/A2A- terminal voltage | 0.5 V or less |
P2252 AND P2255 (SHORT CIRCUIT BETWEEN A1A- AND GND/A2A- AND GND)
| A1A-/A2A- terminal voltage | Higher than 4.5 V |
P2253 AND P2256 (SHORT CIRCUIT BETWEEN A1A- AND +B/A2A- AND +B)
| Air fuel ratio sensor admittance | 0.015 1/ohms or higher |
| A1A+/A2A+ terminal voltage | 0.5 to 4.5 V |
| A1A-/A2A- terminal voltage | 0.5 to 4.5 V |
| Difference between A1A+/A2A+ and A1A-/A2A- terminal voltages | 0.1 to 0.8 V |
Scheme 110
Scheme 110: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine and wait 2 minutes.
- Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [B].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 3 minutes.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result [C]. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
| Related DTCs | P2237: A/F sensor (Bank 1) open circuit between A1A+ and A1A- P2238: A/F sensor (Bank 1) short circuit between A1A+ and A1A- P2238: A/F sensor (Bank 1) short circuit between A1A+ and GND P2238: A/F sensor (Bank 1) low admittance P2239: A/F sensor (Bank 1) short circuit between A1A+ and +B P2240: A/F sensor (Bank 2) open circuit between A2A+ and A2A- P2241: A/F sensor (Bank 2) short circuit between A2A+ and A2A- P2241: A/F sensor (Bank 2) short circuit between A2A+ and GND P2241: A/F sensor (Bank 2) low admittance P2242: A/F sensor (Bank 2) short circuit between A2A+ and +B P2252: A/F sensor (Bank 1) short circuit between A1A- and GND P2253: A/F sensor (Bank 1) short circuit between A1A- and +B P2255: A/F sensor (Bank 2) short circuit between A2A- and GND P2256: A/F sensor (Bank 2) short circuit between A2A- and +B |
| Required Sensors/Components (Main) | A/F sensor |
| Required Sensors/Components (Sub) | Engine Coolant Temperature (ECT) sensor, Crankshaft position sensor |
| Frequency of Operation | Continuous |
| Duration | 10 seconds: P2237, P2240, P2238 (low admittance), P2241 (low admittance) 5 seconds: Others |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | P0016, P0018 (VVT system bank 1, 2 - misalignment) P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment) P0031, P0032, P0051, P0052 (A/F sensor heater) P0102, P0103 (MAF meter) P0112, P0113 (IAT sensor) P0115, P0117, P0118 (ECT sensor) P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor) P0125 (Insufficient ECT for closed loop) P0128 (Thermostat) P0171, P0172, P0174, P0175 (Fuel system) P0301, P0302, P0303, P0304, P0305, P0306 (Misfire) P0335 (CKP sensor) P0340 (Camshaft position sensor) P0451, P0452, P0453 (EVAP system) P0500 (Vehicle speed sensor) P0505 (Idle speed control) |
| Estimated sensor temperature | 450 to 550°C (842 to 1022°F) |
| Engine | Running |
| Battery voltage | 11 V or higher |
P2237 AND P2240 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| Estimated sensor temperature | 700 to 800°C (1292 to 1472°F) |
| ECT | 5°C (41°F) or more (Varies with ECT at engine start) |
| Fuel-cut | Not executed |
P2238 AND P2241 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| Battery voltage | 11 V or higher |
| Ignition switch | ON |
| Time after Ignition switch is OFF to ON | 5 seconds or more |
| A/F sensor admittance | Below 0.002 1/ohms |
P2237 AND P2240 (OPEN CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| Air fuel ratio sensor admittance | Less than 0.015 1/ohms |
P2238 AND P2241 (LOW ADMITTANCE)
| A1A+/A2A+ terminal voltage | 0.5 V or less |
P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND GND/A2A+ AND GND)
| Difference between A1A+ and A1A-/A2A+ and A2A- terminal voltages | 0.1 V or less |
P2238 AND P2241 (SHORT CIRCUIT BETWEEN A1A+ AND A1A-/A2A+ AND A2A-)
| A1A+/A2A+ terminal voltage | Higher than 4.5 V |
P2239 AND P2242 (SHORT CIRCUIT BETWEEN A1A+ AND +B/A2A- AND +B)
| A1A-/A2A- terminal voltage | 0.5 V or less |
P2252 AND P2255 (SHORT CIRCUIT BETWEEN A1A- AND GND/A2A- AND GND)
| A1A-/A2A- terminal voltage | Higher than 4.5 V |
P2253 AND P2256 (SHORT CIRCUIT BETWEEN A1A- AND +B/A2A- AND +B)
| Air fuel ratio sensor admittance | 0.015 1/ohms or higher |
| A1A+/A2A+ terminal voltage | 0.5 to 4.5 V |
| A1A-/A2A- terminal voltage | 0.5 to 4.5 V |
| Difference between A1A+/A2A+ and A1A-/A2A- terminal voltages | 0.1 to 0.8 V |
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine and wait 2 minutes.
- Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [B].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 3 minutes.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result [C]. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
- INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE) Disconnect the A/F sensor connector. Measure the resistance according to the value(s) in the table below. Standard resistance (Bank 1 sensor 1) Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA1A) - 4 (A1A-) Always 10 kohms or higher Standard resistance (Bank 2 sensor 1) Tester Connection Condition Specified Condition 1 (HA2A) - 2 (+B) 20°C (68°F) 1.8 to 3.4 ohms 1 (HA2A) - 4 (A2A-) Always 10 kohms or higher Reconnect the A/F sensor connector. NG --> See step 8 OK: Go to next step
- INSPECT FUSE (A/F FUSE) Remove the A/F fuse from the engine room R/B. Measure the A/F fuse resistance. Standard resistance Below 1 ohms Reinstall the A/F fuse. NG --> REPLACE A/F FUSE OK: Go to next step
- INSPECT ENGINE ROOM JUNCTION BLOCK (A/F RELAY) Remove the engine room junction block from the engine room R/B. Measure the A/F relay resistance. Standard resistance Tester Connection Condition Specified Condition 1F-1 - 1C-6 Always 10 kohms or higher 1F-1 - 1C-6 Always Below 1 ohms (Apply battery voltage between terminals 1D-5 and 1H-2) Reinstall the engine room junction block. NG --> REPLACE ENGINE ROOM JUNCTION BLOCK OK: Go to next step
- CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM) Disconnect the A/F sensor 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 B32-1 (HA1A) - B50-86 (HA1A) Always Below 1 ohms B32-3 (A1A+) - B50-93 (A1A+) Always Below 1 ohms B32-4 (A1A-) - B50-116 (A1A-) Always Below 1 ohms B26-1 (HA2A) - B50-109 (HA2A) Always Below 1 ohms B26-3 (A2A+) - B50-120 (A2A+) Always Below 1 ohms B26-4 (A2A-) - B50-119 (A2A-) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B32-1 (HA1A) or B50-86 (HA1A) - Body ground Always 10 kohms or higher B32-3 (A1A+) or B50-93 (A1A+) - Body ground Always 10 kohms or higher B32-4 (A1A-) or B50-116 (A1A-) - Body ground Always 10 kohms or higher B26-1 (HA2A) or B50-109 (HA2A) - Body ground Always 10 kohms or higher B26-3 (A2A+) or B50-120 (A2A+) - Body ground Always 10 kohms or higher B26-4 (A2A-) or B50-119 (A2A-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the A/F sensor connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-428893-S38119987512011101200000) . NEXT: Go to next step
- PERFORM CONFIRMATION DRIVING PATTERN 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-428881-S06483383612011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON and turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern. NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. Result Result Proceed to DTC is not output A DTC is P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256 is output B B --> See step 9 A --> END
- REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-428893-S38119987512011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
| Related DTC | P2420: Vent valve stuck open (vent) |
| Required Sensors/Components | Purge VSV and canister pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 2 minutes |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Atmospheric pressure | 70 to 110 kPa (525 to 825 mmHg) |
| Battery voltage | 10.5 V or more |
| Vehicle speed | Below 2.5 mph (4 km/h) |
| Ignition switch | OFF |
| Time after key off | 5, 7 or 9.5 hours |
| EVAP pressure sensor malfunction (P0452 and P0453) | Not detected |
| EVAP canister purge valve | Not operated by scan tool |
| EVAP canister vent valve | Not operated by scan tool |
| EVAP leak detection pump | Not operated by scan tool |
| Both of following conditions are met before key off | Conditions 1 and 2 |
| 1. Duration that vehicle has been driven | 5 minutes or more |
| 2. EVAP purge operation | Performed |
| Engine coolant temperature | 4.4 to 35°C (40 to 95°F) |
| Intake air temperature | 4.4 to 35°C (40 to 95°F) |
| EVAP pressure change after EVAP canister vent valve is ON | Less than 0.3 kPa (2.25 mmHg) |
Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .
Scheme 111
Scheme 111: CONFIRMATION DRIVING PATTERN
Note. The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F).
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode [A].
- After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [B].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2420.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B].
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
| Related DTC | P2420: Vent valve stuck open (vent) |
| Required Sensors/Components | Purge VSV and canister pump module |
| Frequency of Operation | Once per driving cycle |
| Duration | Within 2 minutes |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Atmospheric pressure | 70 to 110 kPa (525 to 825 mmHg) |
| Battery voltage | 10.5 V or more |
| Vehicle speed | Below 2.5 mph (4 km/h) |
| Ignition switch | OFF |
| Time after key off | 5, 7 or 9.5 hours |
| EVAP pressure sensor malfunction (P0452 and P0453) | Not detected |
| EVAP canister purge valve | Not operated by scan tool |
| EVAP canister vent valve | Not operated by scan tool |
| EVAP leak detection pump | Not operated by scan tool |
| Both of following conditions are met before key off | Conditions 1 and 2 |
| 1. Duration that vehicle has been driven | 5 minutes or more |
| 2. EVAP purge operation | Performed |
| Engine coolant temperature | 4.4 to 35°C (40 to 95°F) |
| Intake air temperature | 4.4 to 35°C (40 to 95°F) |
| EVAP pressure change after EVAP canister vent valve is ON | Less than 0.3 kPa (2.25 mmHg) |
Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .
Note. The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or higher, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the fuel temperature below 35°C (95°F).
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode [A].
- After the "Evaporative System Check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [B].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2420.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B].
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
| Related DTC | P2610: ECM internal engine off timer performance |
| Required Sensors/Components | ECM |
| Frequency of Operation | Once per driving cycle |
| Duration | 10 minutes |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Ignition switch | ON |
| Engine | Running |
| Battery voltage | 8 V or more |
| Starter | OFF |
| Time after ignition switch off to ON | More than 0.5 seconds |
| CPU clock elapsed time | 10 times or more |
| Internal engine OFF timer (elapsed time from engine stop) | 10 to 30 minutes |
| Battery voltage | 8 V or more |
| Ignition switch | ON |
| Starter | OFF |
| Time after ignition switch off to ON | More than 0.5 seconds |
| Internal engine OFF timer (elapsed time from engine stop) | 10 to 40 minutes |
| Battery voltage | 8 V or more |
| Ignition switch | ON |
| Starter | OFF |
| Time after ignition switch off to ON | More than 0.5 seconds |
| Internal engine OFF timer (elapsed time from engine start) | Less than 7 minutes or more than 13 minutes |
| ECM had the started record by internal engine | Yes |
| ECM had the started record by internal engine | No |
Scheme 112
Scheme 112: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine.
- Idle the engine for 10 minutes or more [B].
- Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [C].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2610.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
- REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (P2610) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Start the engine and wait for 10 minutes or more. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. HINT: If no pending DTCs are output to the Techstream, the repair has been successfully completed. NEXT --> END
| Related DTC | P2610: ECM internal engine off timer performance |
| Required Sensors/Components | ECM |
| Frequency of Operation | Once per driving cycle |
| Duration | 10 minutes |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Ignition switch | ON |
| Engine | Running |
| Battery voltage | 8 V or more |
| Starter | OFF |
| Time after ignition switch off to ON | More than 0.5 seconds |
| CPU clock elapsed time | 10 times or more |
| Internal engine OFF timer (elapsed time from engine stop) | 10 to 30 minutes |
| Battery voltage | 8 V or more |
| Ignition switch | ON |
| Starter | OFF |
| Time after ignition switch off to ON | More than 0.5 seconds |
| Internal engine OFF timer (elapsed time from engine stop) | 10 to 40 minutes |
| Battery voltage | 8 V or more |
| Ignition switch | ON |
| Starter | OFF |
| Time after ignition switch off to ON | More than 0.5 seconds |
| Internal engine OFF timer (elapsed time from engine start) | Less than 7 minutes or more than 13 minutes |
| ECM had the started record by internal engine | Yes |
| ECM had the started record by internal engine | No |
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Start the engine.
- Idle the engine for 10 minutes or more [B].
- Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
- Read the pending DTCs [C].
- If a pending DTC is output, the system is malfunctioning. HINT: If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P2610.
- Check the DTC judgment 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
- REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000) . NEXT: Go to next step
- CHECK WHETHER DTC OUTPUT RECURS (P2610) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Start the engine and wait for 10 minutes or more. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending. Read the pending DTCs. HINT: If no pending DTCs are output to the Techstream, the repair has been successfully completed. NEXT --> END
| Related DTCs | U0101: Verify communication |
| Required Sensors/Components (Main) | ECM |
| Required Sensors/Components (Sub) | |
| Frequency of Operation | Continuous |
| Duration | 1.25 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Battery Voltage | 10.5 V or more |
| Ignition switch | ON |
| Time after ignition switch off to ON | More than 0.5 seconds |
| Starter | OFF |
| Communication signal | Lost communication with TCM |
Scheme 113
Scheme 113: CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Wait 5 seconds or more.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs [B].
- If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: U0101.
- Check the DTC judgment result [B]. 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [A] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
Scheme 114
Scheme 114: WIRING DIAGRAM
Scheme 115
- CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC U0101) 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 the DTCs. Result Result Proceed to DTC U0101 is output A DTC U0101 and other DTC are output B HINT: If any DTCs other than U0101 is output, troubleshoot those DTCs first. B --> See step 2 A: Go to next step
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S09869597972011101200000)
- CHECK TCM TERMINAL VOLTAGE (+B AND E1 TERMINALS) Disconnect the TCM connector. Turn the ignition switch to ON. Measure the voltage of the TCM connectors. Standard Voltage Tester Connection Switch Condition Specified Condition B53-18 (+B) - B53-8 (E1) Ignition switch ON 11 to 14 V Turn the ignition switch off. Measure the resistance of the TCM connector. Standard Resistance Tester Connection Condition Specified Condition B53-8 (E1) - Body ground Always Below 1ohms Reconnect the TCM connector. NG --> GO TO «TCM POWER SOURCE CIRCUIT»(ref-428922-S37806445462011101200000) OK: Go to next step
- CHECK HARNESS AND CONNECTOR (ECM - TCM) Disconnect the TCM connector. Disconnect the ECM connector. Measure the resistance of the wire harness side connectors. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B53-6 (CAN+) - B50-2 (CAN+) Always Below 1 ohms B53-7 (CAN-) - B50-1 (CAN-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B53-6 (CAN+) or B50-2 (CAN+) - Body ground Always 10 kohms or higher B53-7 (CAN-) or B50-1 (CAN-) - Body ground Always 10 kohms or higher Reconnect the TCM connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - TCM) OK: Go to next step
- REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000) . NOTE: Replace the ECM with a ECM from a normally functioning vehicle of the same model. NEXT: Go to next step
- CHECK IF DTC RECURS Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S23178403412011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. Wait 5 seconds or more. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC U0101 is output B B --> REPLACE TCM A --> END
| Related DTCs | U0101: Verify communication |
| Required Sensors/Components (Main) | ECM |
| Required Sensors/Components (Sub) | |
| Frequency of Operation | Continuous |
| Duration | 1.25 seconds |
| MIL Operation | Immediately |
| Sequence of Operation | None |
| Monitor runs whenever following DTCs are not present | None |
| Battery Voltage | 10.5 V or more |
| Ignition switch | ON |
| Time after ignition switch off to ON | More than 0.5 seconds |
| Starter | OFF |
| Communication signal | Lost communication with TCM |
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure). Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) .
- Turn the ignition switch off and wait for 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [A].
- Wait 5 seconds or more.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs [B].
- If a DTC is output, the system is malfunctioning. HINT: If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: U0101.
- Check the DTC judgment result [B]. 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 UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU's memory limit HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal. If the judgment result shows INCOMPLETE or UNKNOWN, perform step [A] again.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Check the judgment result. HINT: If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows NORMAL, the system is normal.
- If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.
- CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC U0101) 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 the DTCs. Result Result Proceed to DTC U0101 is output A DTC U0101 and other DTC are output B HINT: If any DTCs other than U0101 is output, troubleshoot those DTCs first. B --> See step 2 A: Go to next step
- GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S08160572302011101200000)
- CHECK TCM TERMINAL VOLTAGE (+B AND E1 TERMINALS) Disconnect the TCM connector. Turn the ignition switch to ON. Measure the voltage of the TCM connectors. Standard Voltage Tester Connection Switch Condition Specified Condition B53-18 (+B) - B53-8 (E1) Ignition switch ON 11 to 14 V Turn the ignition switch off. Measure the resistance of the TCM connector. Standard Resistance Tester Connection Condition Specified Condition B53-8 (E1) - Body ground Always Below 1ohms Reconnect the TCM connector. NG --> GO TO «TCM POWER SOURCE CIRCUIT»(ref-428922-S37806445462011101200000) OK: Go to next step
- CHECK HARNESS AND CONNECTOR (ECM - TCM) Disconnect the TCM connector. Disconnect the ECM connector. Measure the resistance of the wire harness side connectors. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B53-6 (CAN+) - B50-2 (CAN+) Always Below 1 ohms B53-7 (CAN-) - B50-1 (CAN-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B53-6 (CAN+) or B50-2 (CAN+) - Body ground Always 10 kohms or higher B53-7 (CAN-) or B50-1 (CAN-) - Body ground Always 10 kohms or higher Reconnect the TCM connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - TCM) OK: Go to next step
- REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000) . NOTE: Replace the ECM with a ECM from a normally functioning vehicle of the same model. NEXT: Go to next step
- CHECK IF DTC RECURS Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Turn the ignition switch off. Turn the ignition switch to ON and turn the Techstream on. Wait 5 seconds or more. Enter the following menus: Powertrain / Engine / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC U0101 is output B B --> REPLACE TCM A --> END
- CHECK VACUUM HOSES If the hose is damaged, replace the vacuum hose assembly. Check the air and vacuum hoses for looseness, disconnection and blockage. NG --> REPAIR OR REPLACE VACUUM HOSES OK: Go to next step
- CHECK VACUUM Start the engine. Disconnect the vacuum hose from the air cleaner cap. Check that the disconnected port located on the vacuum tank applies suction to your finger. OK Vacuum pressure exists. Reconnect the vacuum hose. NG --> CHECK AND REPLACE VACUUM SOURCE AND HOSES OK: Go to next step
- INSPECT DUTY VACUUM SWITCHING VALVE (OPERATION) Remove the VSV for ACM. Check operation of the VSV for ACM when positive battery voltage is applied to the terminals of the VSV for the ACM connector. Positive battery voltage is not applied The air from pipe G is flowing out through pipes E and H. Positive battery voltage is applied The air from pipe F is flowing out through pipes E and H. Reinstall the VSV for ACM. NG --> REPLACE DUTY VACUUM SWITCHING VALVE OK: Go to next step
- INSPECT DUTY VACUUM SWITCHING VALVE (RESISTANCE) Disconnect the VSV for ACM connector. Measure the resistance between terminals 1 and 2. Standard resistance 19 to 21 ohms at 20°C (68°F) Reconnect the VSV for ACM connector. NG --> REPLACE DUTY VACUUM SWITCHING VALVE OK: Go to next step
- INSPECT FRONT ENGINE MOUNTING INSULATOR ASSEMBLY Disconnect the vacuum hose from the front engine mount insulator. Using a vacuum pump, apply vacuum of 80 kPa (600 mmHg, 25 in.Hg) and wait for 1 minute. Check that there is no change in the needle movement of the vacuum pump gauge. Check that there is no fluid leakage caused by a break in the diaphragm. OK Vacuum pressure leak. Reconnect the vacuum hose. NG --> REPLACE FRONT ENGINE MOUNTING INSULATOR ASSEMBLY OK: Go to next step
- CHECK HARNESS AND CONNECTOR (VSV FOR ACM - ECM) Check the wire harness between the VSV for ACM connector and the ECM connector. Disconnect the VSV for ACM connector. Disconnect the ECM connector. Measure the resistance between the wire harness side connectors. Standard resistance (Check for open) Tester Connection Condition Specified Condition B15-2 - B50-42 (ACM) Always Below 1 ohms Standard resistance (Check for open) Tester Connection Condition Specified Condition B15-2 or B50-42 (ACM) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the VSV for ACM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VSV FOR ACM - ECM) OK: Go to next step
- INSPECT DUTY VACUUM SWITCHING VALVE (VOLTAGE) Disconnect the VSV for ACM connector. Turn the ignition switch to ON. Measure the voltage between the terminals. Standard voltage Tester Connection Switch Condition Specified Condition B15-1 - Body ground Ignition switch ON 11 to 14 V Reconnect the VSV for ACM connector. NG --> See step 8 OK --> See step 9
- CHECK HARNESS AND CONNECTOR (VSV FOR ACM - ENGINE JUNCTION BLOCK (EFI RELAY)) Check the wire harness between the VSV for ACM and the EFI relay. Disconnect the VSV for ACM connector. Remove the engine room junction block. Measure the resistance between the wire harness side connectors. Standard resistance (Check for open) Tester Connection Condition Specified Condition B15-1 - 1D-5 (Engine room relay block) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B15-1 or 1D-5 (Engine room relay block) - Body ground Always 10 kohms or higher Reconnect the VSV for ACM connector. Reinstall the engine room junction block. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 9
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
RELATED DTCS
| DTC | Monitoring Item | See |
| P043E | Reference orifice clogged (built into canister pump module) | Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low |
| P043F | Reference orifice high-flow (built into canister pump module) |
| P0441 | Purge VSV (Vacuum Switching Valve) stuck closed Purge VSV stuck open Purge flow | Refer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow |
| P0451 | Canister pressure sensor (built into canister pump module) noise Canister pressure sensor (built into canister pump module) signal becomes fixed/flat | 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 |
| P0452 | Canister pressure sensor (built into canister pump module) voltage low |
| P0453 | Canister pressure sensor (built into canister pump module) voltage high |
| P0455 | EVAP gross leak | Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) |
| P0456 | EVAP small leak |
| P2401 | Leak detection pump stuck OFF (built into canister pump module) | Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low |
| P2402 | Leak detection pump stuck ON (built into canister pump module) |
| P2419 | Vent valve stuck closed (built into canister pump module) | Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low |
| P2420 | Vent valve stuck open (vent) (built into canister pump module) | Refer to DTC P2420: Evaporative Emission System Switching Valve Control Circuit High |
| P2610 | Soak timer (built into ECM) | Refer to DTC P2610: ECM / PCM Internal Engine Off Timer Performance |
If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.
Scheme 116
Note. If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.
Scheme 117
The canister pressure sensor, the leak detection pump and the vent valve are built into the canister pump module.
Scheme 118
Note. In this vehicle's EVAP system, turning ON the vent valve does not seal off the EVAP system. To check for leaks in the EVAP system, disconnect the air inlet vent hose and apply pressure from the atmospheric side of the canister.
While the engine is running, if a predetermined condition (closed-loop, etc.) is met, the purge VSV is opened by the ECM and fuel vapors stored in the canister are purged into the intake manifold. The ECM changes the duty cycle ratio of the purge VSV to control purge flow volume.
The purge flow volume is also determined by the intake manifold pressure. Atmospheric pressure is allowed into the canister through the vent valve to ensure that the purge flow is maintained when negative pressure (vacuum) is applied to the canister.
The following two monitors run to confirm the appropriate EVAP system operation.
Scheme 119
Scheme 120
Scheme 121
Scheme 122
- Key-off monitor This monitor checks for EVAP (Evaporative Emission) system leaks and canister pump module malfunctions. The monitor starts 5 hours* after the ignition switch is turned off. At least 5 hours are required for the fuel to cool down to stabilize the EVAP pressure, thus making the EVAP system monitor more accurate. The leak detection pump creates negative pressure (vacuum) in the EVAP system and the pressure is measured. Finally, the ECM monitors for leaks from the EVAP system, malfunctions in both the canister pump module and purge VSV, based on the EVAP pressure. HINT: *: If the engine coolant temperature is not below 35°C (95°F) 5 hours after the ignition switch is turned off, the monitor check starts 2 hours later. If it is still not below 35°C (95°F) 7 hours after the ignition switch is turned off, the monitor check starts 2.5 hours later.
- Purge flow monitor The purge flow monitor consists of the 2 monitors. The 1st monitor is conducted every time and the 2nd monitor is activated if necessary. The 1st monitor While the engine is running and the purge VSV (Vacuum Switching Valve) is ON (open), the ECM monitors the purge flow by measuring the EVAP pressure change. If negative pressure is not created, the ECM begins the 2nd monitor. The 2nd monitor The vent valve is turned OFF (open) and the EVAP pressure is measured. If the variation in the pressure is less than 0.4 kPa (3.0 mmHg), the ECM interprets this as the purge VSV being stuck closed, illuminates the MIL and sets DTC P0441 (2 trip detection logic). Atmospheric pressure check: In order to ensure reliable malfunction detection, the variation between the atmospheric pressures, before and after conduction of the purge flow monitor, is measured by the ECM. Component Operation Canister Contains activated charcoal to absorb EVAP (evaporative emissions) generated in fuel tank. Cut-off valve Located in fuel tank. Valve floats and closes when fuel tank is 100% full. Purge VSV (Vacuum Switching Valve) Opens or closes line between canister and intake manifold. ECM uses purge VSV to control EVAP purge flow. In order to discharge EVAP absorbed by canister to intake manifold, ECM opens purge VSV. EVAP discharge volume to intake manifold controlled by purge VSV duty cycle (current-carrying time) (Open: on; Closed: off). Refueling valve Controls EVAP pressure from fuel tank to canister. Valve consists of diaphragm, spring and restrictor (diameter: 0.08 inch). When fuel vapor and pressure inside fuel tank increase, valve opens. While EVAP purged, valve closes and restrictor prevents large amount of vacuum from affecting pressure in fuel tank. Valve opens while refueling. Roll-over valve Located in fuel tank. Valve closes by its own weight when vehicle overturns to prevent fuel from spilling out. Soak timer Built into ECM. To ensure accurate EVAP monitor, measures 5 hours (+/-15 min) after ignition switch turned off. This allows fuel to cool down, stabilizing EVAP pressure. When approximately 5 hours elapsed, ECM activates (Scheme 102) Canister pump module Consists of (a) to (d) below. Canister pump module cannot be disassembled. (a) Vent valve Vents and closes EVAP system. When ECM turns valve on, EVAP system closed. When ECM turns valve off, EVAP system is vented. Negative pressure (vacuum) is created in EVAP system to check for EVAP leaks by closing purge VSV, turning on vent valve (closing it) and operating leak detection pump see scheme 1 (b) Canister pressure sensor Indicates pressure as voltage. ECM supplies regulated 5 V to canister pressure sensor, and uses feedback from sensor to monitor EVAP system pressure (Scheme 101) (c) Leak detection pump Creates negative pressure (vacuum) in EVAP system for leak check. (d) Reference orifice Has opening with 0.02 inch diameter. Vacuum is produced through orifice by closing purge VSV, turning off vent valve and operating leak detection pump to monitor reference pressure. Reference pressure indicates small leak of EVAP.
Scheme 123
Scheme 123: WIRING DIAGRAM
After a repair, check Monitor Status by performing the Key-Off Monitor Confirmation and Purge Flow Monitor Confirmation described below.
- KEY-OFF MONITOR CONFIRMATION Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway). The fuel tank is less than 90% full. The altitude is less than 8000 ft (2400 m). The Engine Coolant Temperature (ECT) is between 4.4°C and 35°C (40°F and 95°F). The Intake Air Temperature (IAT) is between 4.4°C and 35°C (40°F and 95°F). The vehicle remains stationary (the vehicle speed is 0 mph (0 km/h)). Monitor Conditions Allow the engine to idle for at least 5 minutes. Turn the ignition switch off and wait for 6 hours (8 or 10.5 hours). HINT: Do not start the engine until Checking Monitor Status. If the engine is started, the steps described above must be repeated. Monitor Status Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Monitor / Evaporative System. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
- PURGE FLOW MONITOR CONFIRMATION (P0441) HINT: Perform this monitor confirmation after the Key-Off Monitor Confirmation shows complete. Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway) The Engine Coolant Temperature (ECT) is between 4.4°C and 35°C (40°F and 95°F) The Intake Air Temperature (IAT) is between 4.4°C and 35°C (40°F and 95°F) Monitor Conditions Release the pressure from the fuel tank by removing and reinstalling the fuel cap. Warm the engine up until the ECT reaches more than 75°C (167°F). Increase the engine speed to 3000 RPM once. Allow the engine to idle and turn A/C on for 1 minute. Monitor Status Turn the ignition switch off (if ON or the engine is running). Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Monitor / Evaporative System. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .
| DTC | Monitoring Item | See |
| P043E | Reference orifice clogged (built into canister pump module) | Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low |
| P043F | Reference orifice high-flow (built into canister pump module) |
| P0441 | Purge VSV (Vacuum Switching Valve) stuck closed Purge VSV stuck open Purge flow | Refer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow |
| P0451 | Canister pressure sensor (built into canister pump module) noise Canister pressure sensor (built into canister pump module) signal becomes fixed/flat | 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 |
| P0452 | Canister pressure sensor (built into canister pump module) voltage low |
| P0453 | Canister pressure sensor (built into canister pump module) voltage high |
| P0455 | EVAP gross leak | Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak) |
| P0456 | EVAP small leak |
| P2401 | Leak detection pump stuck OFF (built into canister pump module) | Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low |
| P2402 | Leak detection pump stuck ON (built into canister pump module) |
| P2419 | Vent valve stuck closed (built into canister pump module) | Refer to DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission System Leak Detection Pump Control Circuit High; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low |
| P2420 | Vent valve stuck open (vent) (built into canister pump module) | Refer to DTC P2420: Evaporative Emission System Switching Valve Control Circuit High |
| P2610 | Soak timer (built into ECM) | Refer to DTC P2610: ECM / PCM Internal Engine Off Timer Performance |
If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.
Note. If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.
- CONFIRM DTC Turn the ignition switch off and wait for 10 seconds. Turn the ignition switch to ON. Turn the ignition switch off and wait for 10 seconds. Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes. Confirm DTCs and freeze frame data. If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below. NOTE: If the reference pressure difference between the first and second checks is greater than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored. NEXT: Go to next step
- PERFORM EVAP SYSTEM CHECK (AUTO OPERATION) NOTE: The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing the Evaporative System Check, keep the temperature below 35°C (95°F). Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . On the Techstream, select the following menu items: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode. After the Evaporative System Check is completed, check for pending DTCs by selecting the following menu items: Powertrain / Engine / 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
- PERFORM EVAP SYSTEM CHECK (MANUAL OPERATION) NOTE: In the Evaporative System Check (Manual Mode), perform the series of 5 Evaporative System Check steps manually using Techstream. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine during this operation. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing EVAP SYSTEM CHECK, keep the temperature below 35°C (95°F). Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Select the following menu items: Powertrain / Engine / Utility / Evaporative System Check / Manual Mode. NEXT: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 1/5) Check the EVAP pressure in step 1/5. Result DTC* Test Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure Not yet determined A P0451 EVAP pressure fluctuates by +/-0.3 kPa (2.25 mmHg) or more Canister pressure sensor noise B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "CONFIRM DTC" procedures above. B --> See step 29 A: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 1/5 TO 2/5) Check the EVAP pressure in steps 1/5 and 2/5. Result DTC* Test Result Suspected Trouble Area Proceed to - Virtually no variation in EVAP pressure during step 1/5. Then decreases to reference pressure. Not yet determined A P2402 Small difference between EVAP pressures during steps 1/5 and 2/5 Leak detection pump stuck ON B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. HINT: The first reference pressure is the value determined in step 2/5. B --> See step 22 A: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 2/5) HINT: Make a note of the pressures checked in steps (a) and (b) below. (a) Check the EVAP pressure 4 seconds after the leak detection pump is activated*. *: The leak detection pump begins to operate as step 1/5 finishes and step 2/5 starts. (b) Check the EVAP pressure again when it has stabilized. This pressure is the reference pressure. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure in step (b) between -4.85 kPa and -1.057 kPa (-36.4 mmHg and -7.93 mmHg) Not yet determined A P043F and P2401 EVAP pressure in step (b) -1.057 kPa (-7.93 mmHg) or more Reference orifice high-flow Leak detection pump stuck OFF B P043E EVAP pressure in step (b) below -4.85 kPa (-36.4 mmHg) Reference orifice clogged C P2419 EVAP pressure in step (a) more than -1.057 kPa (-7.93 mmHg) Vent valve stuck closed D *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. B --> See step 11 C --> See step 29 D --> See step 20 A: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 2/5 TO 3/5) Check the EVAP pressure in step 3/5. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 2/5 to step 3/5 Not yet determined A P2420 No variation in EVAP pressure despite proceeding from step 2/5 to step 3/5 Vent valve stuck open (vent) B P0451 No variation in EVAP pressure during steps 1/5 through 3/5 Canister pressure sensor output value stuck C *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. B --> See step 19 C --> See step 29 A: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 3/5) Wait until the EVAP pressure change is less than 0.1 kPa (0.75 mmHg) for 30 seconds. Measure the EVAP pressure and record it. HINT: A few minutes are required for the EVAP pressure to become saturated. When there is little fuel in the fuel tank, it takes up to 15 minutes. NEXT: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 4/5) Check the EVAP pressure in step 4/5. Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Not yet determined A P0441 EVAP pressure increases by 0.3 kPa (2.25 mmHg) or more within 10 seconds of proceeding from step 3/5 to step 4/5 Problems in EVAP hose between purge VSV and intake manifold B P0441 Variation in EVAP pressure less than 0.3 kPa (2.25 mmHg) for 10 seconds, after proceeding from step 3/5 to step 4/5 Purge VSV stuck closed C *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. B --> See step 15 C --> See step 12 A: Go to next step
- PERFORM EVAP SYSTEM CHECK (STEP 5/5) Check the EVAP pressure in step 5/5. Compare the EVAP pressure in step 3/5 and the second reference pressure (step 5/5). Result DTC* Test Result Suspected Trouble Area Proceed to - EVAP pressure from step 3/5 lower than second reference pressure (step 5/5) Not yet determined (no leakage from EVAP system) A P0441 and P0455 EVAP pressure from step 3/5 higher than [second reference pressure (step 5/5) x 0.2] Purge VSV stuck open EVAP gross leak B P0456 EVAP pressure from step 3/5 higher than second reference pressure (step 5/5) EVAP small leak B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. A --> See step 35 B --> See step 12
- PERFORM EVAP SYSTEM CHECK (STEP 3/5) Check the EVAP pressure in step 3/5. Result DTC* Test Result Suspected Trouble Area Proceed to P043F EVAP pressure less than [reference pressure] measured in step 2/5 Reference orifice high-flow A P2401 EVAP pressure almost same as [reference pressure] measured in step 2/5 Leak detection pump stuck off B *: These DTCs are already present in the ECM when the vehicle arrives and are confirmed in the "Confirm DTC" procedures above. HINT: The first reference pressure is the value determined in step 2/5. A --> See step 29 B --> See step 22
- PERFORM ACTIVE TEST USING TECHSTREAM (PURGE VSV) On Techstream, select the following menu items: Powertrain / Engine / Active Test / Activate the VSV for EVAP Control. Disconnect the hose (connected to the canister) from the purge VSV. Start the engine. Using the Techstream, turn off the purge VSV (Activate the VSV for EVAP Control: OFF). Use your finger to confirm that the purge VSV has no suction. Using the Techstream, turn on the purge VSV (Activate the VSV for EVAP Control: ON). Use your finger to confirm that the purge VSV has suction. Result Test Result Suspected Trouble Area Proceed to No suction when purge VSV turned off, and suction applied when turned on Purge VSV normal A Suction applied when purge VSV turned off Purge VSV stuck open B No suction when purge VSV turned on Purge VSV stuck closed Problems with EVAP hose between purge VSV and intake manifold C Reconnect the hose. B --> See step 14 C --> See step 15 A: Go to next step
- CHECK FUEL CAP Check that the fuel cap is correctly installed and confirm that the fuel cap meets OEM specifications. Tighten the fuel cap until a few click sounds are heard. HINT: If an EVAP tester is available, check the fuel cap using the Techstream. Remove the fuel cap and install it onto a fuel cap adapter. Connect an EVAP tester pump hose to the adapter, and pressurize the cap to 3.2 to 3.7 kPa (24 to 28 mmHg) using an EVAP tester pump. Seal the adapter and wait for 2 minutes. Check the pressure. If the pressure is 2 kPa (15 mmHg) or more, the fuel cap is normal. Result Test Result Suspected Trouble Area Proceed to Fuel cap correctly installed - A Fuel cap loose Fuel cap improperly installed Defective fuel cap Fuel cap does not meet OEM specifications B Defective fuel cap - B No fuel cap - C Reinstall the fuel cap. A --> See step 28 B --> See step 26 C --> See step 27
- INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV) Turn the ignition switch off. Disconnect the purge VSV connector. 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 ECM A Suction applied Purge VSV B Reconnect the purge VSV connector. Reconnect the hose. A --> See step 34 B --> See step 30
- CHECK EVAP HOSE (PURGE VSV - INTAKE AIR SURGE TANK ASSEMBLY) Disconnect the hose (connected to the intake air surge tank assembly) from the purge VSV. Start the engine. Use your finger to confirm that the hose has suction. Result Test Result Suspected Trouble Area Proceed to Suction applied EVAP hose between purge VSV and intake air surge tank assembly normal A No suction Intake manifold port EVAP hose between purge VSV and intake air surge tank assembly B Reconnect the hose. B --> See step 25 A: Go to next step
- INSPECT DUTY VACUUM SWITCHING VALVE (PURGE VSV) Remove the purge VSV. Apply battery voltage to the terminals of the purge VSV. Using an air gun, confirm that air flows from port A to port B. Result Test Result Suspected Trouble Area Proceed to Air flows Purge VSV normal A No air flow Purge VSV B Install the purge VSV. B --> See step 30 A: Go to next step
- CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV) Disconnect the purge VSV connector. Turn the ignition switch to ON. Measure the voltage between terminal 1 of the purge VSV connector and body ground. Result Test Result Suspected Trouble Area Proceed to 11 to 14 V Normal A Other than result above Wire harness or connectors between purge VSV and ECM B Reconnect the purge VSV connector. B --> See step 31 A: Go to next step
- CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) Disconnect the ECM connector and the purge VSV connector. Measure the resistance. Standard resistance Tester Connection Condition Specified Condition B50-108 (PRG) - B31-2 (Purge VSV) Always Below 1 ohms B50-108 (PRG) - Body ground Always 10 kohms or higher B31-2 (Purge VSV) - Body ground Always 10 kohms or higher Reconnect the purge VSV connector. Reconnect the ECM connector. OK --> See step 34 NG --> See step 31
- INSPECT CANISTER PUMP MODULE (POWER SOURCE FOR VENT VALVE) Turn the ignition switch off. Disconnect the canister pump module connector. Turn the ignition switch to ON. Measure the voltage between the VLVB terminal of the canister pump module connector and body ground. Result Test Result Suspected Trouble Area Proceed to 11 to 14 V Wire harness between vent valve and ECM Vent valve ECM A Below 3 V Power source wire harness of vent valve B Reconnect the canister pump module connector. B --> See step 31 A: Go to next step
- INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION) Turn the ignition switch off. Disconnect the canister pump module connector. Apply battery voltage to the VLVB and VGND terminals of the canister pump module. Touch the canister pump module to confirm the vent valve operation. Result Test Result Suspected Trouble Area Proceed to Operating 1. Wire harness between vent valve and ECM 2. ECM A Not operating Vent valve B Reconnect the canister pump module connector. B --> See step 29 A: Go to next step
- CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) Disconnect the ECM connector. Disconnect the canister pump module connector. Measure the resistance between the VPMP terminal of the ECM connector and the VGND terminal of the canister pump module connector. Result Test Result Suspected Trouble Area Proceed to Below 1 ohms ECM A 10 kohms or higher Wire harness between ECM and canister pump module B Reconnect the ECM connector. Reconnect the canister pump module connector. A --> See step 34 B --> See step 31
- PERFORM ACTIVE TEST USING TECHSTREAM (LEAK DETECTION PUMP (ALONE)) Turn the ignition switch off. Disconnect the canister pump module connector. Turn the ignition switch to ON. On Techstream, select the following menu items: Powertrain / Engine / Active Test / Activate the Vacuum Pump. Measure the voltage between MTRB terminal 1 of the canister pump module connector and body ground when the leak detection pump is turned ON and OFF using the Techstream. Result Test Result Suspected Trouble Area Proceed to Below 3 V when OFF 11 to 14 V when ON Wire harness between leak detection pump and body ground Leak detection pump A Below 3 V when OFF and ON Wire harness between leak detection pump and ECM ECM B 11 to 14 V when OFF and ON ECM C B --> See step 24 C --> See step 34 A: Go to next step
- CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND) Turn the ignition switch off. Disconnect the canister pump module connector. Measure the resistance between the MGND terminal of the canister pump module connector and body ground. Result Test Result Suspected Trouble Area Proceed to Below 1 ohms Leak detection pump A 10 kohms or higher Wire harness between canister pump module and body ground B Reconnect the canister pump module connector. A --> See step 29 B --> See step 31
- CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE) Turn the ignition switch off. Disconnect the canister pump module connector. Disconnect the ECM connector. Measure the resistance between the MPMP terminal of the ECM connector and the MTRB terminal of the canister pump module connector. Result Test Result Suspected Trouble Area Proceed to Below 1 ohms ECM A 10 kohms or higher Wire harness between ECM and canister pump module B Reconnect the canister pump module connector. Reconnect the ECM connector. A --> See step 34 B --> See step 31
- 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 Test Result Suspected Trouble Area Proceed to Suction applied EVAP hose between intake manifold and purge VSV A No suction Intake manifold B Reconnect the EVAP hose. A --> See step 32 B --> See step 33
- CORRECTLY REINSTALL OR REPLACE FUEL CAP HINT: When reinstalling the fuel cap, tighten it until a few click sounds are heard. When replacing the fuel cap, use a fuel cap that meets OEM specifications, and install it until a few click sounds are heard. NEXT --> See step 36
- REPLACE FUEL CAP HINT: When installing the fuel cap, tighten it until a few click sounds are heard. NEXT --> See step 36
- LOCATE EVAP LEAK PART Disconnect the vent hose. Connect the EVAP pressure tester tool to the canister pump module with the adapter. Pressurize the EVAP system to 3.2 to 3.7 kPa (24 to 28 mmHg). Apply soapy water to the piping and connecting parts of the EVAP system. Look for areas where bubbles appear. This indicates the leak point. Repair or replace the leak point. HINT: Disconnect the hose between the canister and the fuel tank from the canister. Block the canister side and conduct an inspection. In this way, the fuel tank can be excluded as an area suspected of causing fuel leaks. NEXT --> See step 36
- REPLACE CHARCOAL CANISTER ASSEMBLY Replace the canister assembly. Refer to «REMOVAL»(ref-428893-S19905422122011101200000) . NOTE: When replacing the canister, check the canister pump module interior and related pipes for water, fuel and other liquids. If liquids are present, check for disconnections and/or cracks in the following: 1) the pipe from the air inlet port to the canister pump module; 2) the canister filter; and 3) the fuel tank vent hose. NEXT --> See step 36
- REPLACE DUTY VACUUM SWITCHING VALVE (PURGE VSV) Disconnect the connector and the 2 hoses from the purge VSV. Remove the purge VSV. Install a new purge VSV. Reconnect the connector and 2 hoses. NEXT --> See step 36
- REPAIR OR REPLACE HARNESS OR CONNECTOR NEXT --> See step 36
- REPLACE EVAP HOSE (INTAKE AIR SURGE TANK ASSEMBLY - PURGE VSV) NEXT --> See step 36
- INSPECT INTAKE AIR SURGE TANK ASSEMBLY (EVAP PURGE PORT) Check that the EVAP purge port of the intake air surge tank assembly is not clogged. If necessary, replace the intake air surge tank assembly. NEXT --> See step 36
- REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000) . NEXT --> See step 36
- REPAIR OR REPLACE PARTS AND COMPONENTS INDICATED BY OUTPUT DTCS Repair the malfunctioning areas indicated by the DTCs that had been confirmed when the vehicle was brought in. NEXT: Go to next step
- PERFORM EVAP SYSTEM CHECK (AUTOMATIC OPERATION) NOTE: The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by the Techstream. It takes a maximum of approximately 18 minutes. Do not perform the Evaporative System Check when the fuel tank is more than 90% full because the cut-off valve may be closed, making the fuel tank leak check unavailable. Do not run the engine in this step. When the temperature of the fuel is 35°C (95°F) or more, a large amount of vapor forms and any check results become inaccurate. When performing an Evaporative System Check, keep the temperature below 35°C (95°F). Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . On Techstream, select the following menu items: Powertrain / Engine / Utility / Evaporative System Check / Automatic Mode. After the Evaporative System Check is completed, check for pending DTCs by selecting the following menu items: Powertrain / Engine / Trouble Codes / Pending. HINT: If no pending DTCs are found, the repair has been successfully completed. NEXT --> COMPLETED
After a repair, check Monitor Status by performing the Key-Off Monitor Confirmation and Purge Flow Monitor Confirmation described below.
- KEY-OFF MONITOR CONFIRMATION Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway). The fuel tank is less than 90% full. The altitude is less than 8000 ft (2400 m). The Engine Coolant Temperature (ECT) is between 4.4°C and 35°C (40°F and 95°F). The Intake Air Temperature (IAT) is between 4.4°C and 35°C (40°F and 95°F). The vehicle remains stationary (the vehicle speed is 0 mph (0 km/h)). Monitor Conditions Allow the engine to idle for at least 5 minutes. Turn the ignition switch off and wait for 6 hours (8 or 10.5 hours). HINT: Do not start the engine until Checking Monitor Status. If the engine is started, the steps described above must be repeated. Monitor Status Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Monitor / Evaporative System. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
- PURGE FLOW MONITOR CONFIRMATION (P0441) HINT: Perform this monitor confirmation after the Key-Off Monitor Confirmation shows complete. Preconditions The monitor will not run unless: The vehicle has been driven for 10 minutes or more (in a city area or on a freeway) The Engine Coolant Temperature (ECT) is between 4.4°C and 35°C (40°F and 95°F) The Intake Air Temperature (IAT) is between 4.4°C and 35°C (40°F and 95°F) Monitor Conditions Release the pressure from the fuel tank by removing and reinstalling the fuel cap. Warm the engine up until the ECT reaches more than 75°C (167°F). Increase the engine speed to 3000 RPM once. Allow the engine to idle and turn A/C on for 1 minute. Monitor Status Turn the ignition switch off (if ON or the engine is running). Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Monitor / Evaporative System. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor is not completed. Make sure that the preconditions have been met, and perform the Monitor Conditions again.
Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .
- CHECK MIL Check that Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch to ON. OK MIL lights up. NG --> See step 2 OK --> See step 20
- CHECK CONNECTION BETWEEN TECHSTREAM AND ECM Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Check the communication between the Techstream and ECM. Result Result Proceed to Communication is possible A Communication is not possible B A --> See step 12 B: Go to next step
- CHECK THROTTLE BODY ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the throttle body connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the throttle body connector. A --> See step 13 B: Go to next step
- CHECK ACCELERATOR PEDAL ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the accelerator pedal position sensor connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the accelerator pedal position sensor connector. A --> See step 14 B: Go to next step
- CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for intake camshaft bank 1 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for intake camshaft bank 1 connector. A --> See step 15 B: Go to next step
- CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for exhaust camshaft bank 1 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for exhaust camshaft bank 1 connector. A --> See step 16 B: Go to next step
- CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for intake camshaft bank 2 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for intake camshaft bank 2 connector. A --> See step 17 B: Go to next step
- CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for exhaust camshaft bank 2 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for exhaust camshaft bank 2 connector. A --> See step 18 B: Go to next step
- CHECK CHARCOAL CANISTER ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the canister pump module connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the canister pump module connector. A --> See step 19 B: Go to next step
- CHECK HARNESS AND CONNECTOR Disconnect the throttle body connector. Disconnect the accelerator pedal position sensor connector. Disconnect the VVT sensor for intake camshaft bank 1 connector. Disconnect the VVT sensor for exhaust camshaft bank 1 connector. Disconnect the VVT sensor for intake camshaft bank 2 connector. Disconnect the VVT sensor for exhaust camshaft bank 2 connector. Disconnect the canister pump module connector. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for short) Tester Connection Condition Specified Condition B50-96 (VCTA) - Body ground Always 10 kohms or higher B50-115 (VCV1) - Body ground Always 10 kohms or higher B50-113 (VCV2) - Body ground Always 10 kohms or higher B50-114 (VCE1) - Body ground Always 10 kohms or higher B50-112 (VCE2) - Body ground Always 10 kohms or higher A55-57 (VCPA) - Body ground Always 10 kohms or higher A55-58 (VCP2) - Body ground Always 10 kohms or higher B50-75 (VCPP) - Body ground Always 10 kohms or higher Reconnect the ECM connectors. Reconnect the canister pump module connector. Reconnect the VVT sensor for exhaust camshaft bank 2 connector. Reconnect the VVT sensor for intake camshaft bank 2 connector. Reconnect the VVT sensor for exhaust camshaft bank 1 connector. Reconnect the VVT sensor for intake camshaft bank 1 connector. Reconnect the accelerator pedal position sensor connector. Reconnect the throttle body connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S20017543742011101200000)
- GO TO MIL CIRCUIT. Refer to «MIL Circuit»(ref-428883-S14162201942011101200000)
- REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-428889-S19516729622011101200000)
- REPLACE ACCELERATOR PEDAL ASSEMBLY. Refer to «REMOVAL»(ref-428889-S10416808592011101200000)
- REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 1. Refer to «REMOVAL»(ref-428889-S39532256272011101200000)
- REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1. Refer to «REMOVAL»(ref-428889-S39532256272011101200000)
- REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 2. Refer to «REMOVAL»(ref-428889-S39532256272011101200000)
- REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2. Refer to «REMOVAL»(ref-428889-S39532256272011101200000)
- REPLACE CHARCOAL CANISTER ASSEMBLY. Refer to «REMOVAL»(ref-428893-S08882787612011101200000)
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S10985638622011101200000)
- CHECK MIL Check that Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch to ON. OK MIL lights up. NG --> See step 2 OK --> See step 20
- CHECK CONNECTION BETWEEN TECHSTREAM AND ECM Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Check the communication between the Techstream and ECM. Result Result Proceed to Communication is possible A Communication is not possible B A --> See step 12 B: Go to next step
- CHECK THROTTLE BODY ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the throttle body connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the throttle body connector. A --> See step 13 B: Go to next step
- CHECK ACCELERATOR PEDAL ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the accelerator pedal position sensor connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the accelerator pedal position sensor connector. A --> See step 14 B: Go to next step
- CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for intake camshaft bank 1 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for intake camshaft bank 1 connector. A --> See step 15 B: Go to next step
- CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for exhaust camshaft bank 1 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for exhaust camshaft bank 1 connector. A --> See step 16 B: Go to next step
- CHECK VVT SENSOR FOR INTAKE CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for intake camshaft bank 2 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for intake camshaft bank 2 connector. A --> See step 17 B: Go to next step
- CHECK VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2 (CHECK MIL ILLUMINATED) Disconnect the VVT sensor for exhaust camshaft bank 2 connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the VVT sensor for exhaust camshaft bank 2 connector. A --> See step 18 B: Go to next step
- CHECK CHARCOAL CANISTER ASSEMBLY (CHECK MIL ILLUMINATED) Disconnect the canister pump module connector. Turn the ignition switch to ON. Check the MIL. Result Result Proceed to MIL illuminates A MIL does not illuminate B Reconnect the canister pump module connector. A --> See step 19 B: Go to next step
- CHECK HARNESS AND CONNECTOR Disconnect the throttle body connector. Disconnect the accelerator pedal position sensor connector. Disconnect the VVT sensor for intake camshaft bank 1 connector. Disconnect the VVT sensor for exhaust camshaft bank 1 connector. Disconnect the VVT sensor for intake camshaft bank 2 connector. Disconnect the VVT sensor for exhaust camshaft bank 2 connector. Disconnect the canister pump module connector. Disconnect the ECM connectors. Measure the resistance according to the value(s) in the table below. Standard resistance (Check for short) Tester Connection Condition Specified Condition B50-96 (VCTA) - Body ground Always 10 kohms or higher B50-115 (VCV1) - Body ground Always 10 kohms or higher B50-113 (VCV2) - Body ground Always 10 kohms or higher B50-114 (VCE1) - Body ground Always 10 kohms or higher B50-112 (VCE2) - Body ground Always 10 kohms or higher A55-57 (VCPA) - Body ground Always 10 kohms or higher A55-58 (VCP2) - Body ground Always 10 kohms or higher B50-75 (VCPP) - Body ground Always 10 kohms or higher Reconnect the ECM connectors. Reconnect the canister pump module connector. Reconnect the VVT sensor for exhaust camshaft bank 2 connector. Reconnect the VVT sensor for intake camshaft bank 2 connector. Reconnect the VVT sensor for exhaust camshaft bank 1 connector. Reconnect the VVT sensor for intake camshaft bank 1 connector. Reconnect the accelerator pedal position sensor connector. Reconnect the throttle body connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- GO TO MIL CIRCUIT. Refer to «MIL Circuit»(ref-428883-S29825106572011101200000)
- REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-428889-S26076023702011101200000)
- REPLACE ACCELERATOR PEDAL ASSEMBLY. Refer to «REMOVAL»(ref-428889-S10416808592011101200000)
- REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 1. Refer to «REMOVAL»(ref-428889-S15894472572011101200000)
- REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 1. Refer to «REMOVAL»(ref-428889-S15894472572011101200000)
- REPLACE VVT SENSOR FOR INTAKE CAMSHAFT BANK 2. Refer to «REMOVAL»(ref-428889-S15894472572011101200000)
- REPLACE VVT SENSOR FOR EXHAUST CAMSHAFT BANK 2. Refer to «REMOVAL»(ref-428889-S15894472572011101200000)
- REPLACE CHARCOAL CANISTER ASSEMBLY. Refer to «REMOVAL»(ref-428893-S19905422122011101200000)
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
- PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE C/OPN RELAY) Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed. Check whether the fuel pump operation sound occurs when performing the Active Test on the Techstream. OK Fuel pump operating sound occurs. NG --> See step 3 OK --> See step 2
- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
- CHECK ECM POWER SOURCE CIRCUIT Check the ECM power source circuit. Refer to «ECM Power Source Circuit»(ref-428883-S06863030212011101200000) . NG --> REPAIR OR REPLACE ECM POWER SOURCE CIRCUIT OK: Go to next step
- INSPECT ENGINE ROOM JUNCTION BLOCK (C/OPN RELAY) Remove the engine room junction block from the engine room R/B. Disconnect the engine room junction block connector. Measure the C/OPN relay resistance. Standard resistance Tester Connection Condition Specified Condition 1D-5 - 1D-3 Always 10 kohms or higher 1D-5 - 1D-3 Always Below 1 ohms (Battery voltage applied between terminals 1G-5 and 1H-9) Reconnect the engine room junction block connector. Reinstall the engine room junction block. NG --> REPLACE ENGINE ROOM JUNCTION BLOCK OK: Go to next step
- INSPECT ECM (FC VOLTAGE) Disconnect the ECM connectors. Turn the ignition switch to ON. Measure the voltage between the terminals of the ECM connectors. Standard voltage Tester Connection Switch Condition Specified Condition A55-7 (FC) - B50-81 (E1) Ignition switch ON 11 to 14 V Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - BATTERY) OK: Go to next step
- INSPECT FUEL PUMP Inspect the fuel pump. Refer to «INSPECTION»(ref-428891-S21911458952011101200000) . NG --> See step 9 OK: Go to next step
- CHECK HARNESS AND CONNECTOR (C/OPN RELAY - FUEL PUMP - BODY GROUND) Check the harness and the connectors between the engine room relay block and the fuel pump. Disconnect the engine room junction block connector. Disconnect the fuel pump connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Condition Specified Condition 1D-3 - K7-4 (Fuel pump) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition 1D-3 or K7-4 (Fuel pump) - Body ground Always 10 kohms or higher Check the harness and the connectors between the fuel pump and body ground. Disconnect the fuel pump connector. Measure the resistance. Standard resistance (Check for open) Tester Connection Condition Specified Condition K7-5 (Fuel pump) - Body ground Always Below 1 ohms Reconnect the engine room junction block connector. Reconnect the fuel pump connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 8
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-428891-S16069029372011101200000)
- CHECK CRANKING When starting the engine, check whether the starter motor starts. NG --> See step 2 OK --> See step 13
- READ VALUE USING TECHSTREAM (STARTER SIGNAL) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Data List / All Data / Starter Signal. Check the value displayed on the Techstream when the ignition switch is turned to ON and START. OK Ignition Switch Position Starter Signal ON Close (Starter signal OFF) START Open (Starter signal ON) Result Result Proceed to NG A OK B B --> See step 7 A: Go to next step
- INSPECT ECM (STSW VOLTAGE) Disconnect the ECM Connector. Turn the ignition switch to ON. Measure the voltage between the terminal of the ECM connector and body ground while cranking the engine. Standard voltage Tester Connection Switch Condition Specified Condition A55-14 (STSW) - Body ground Ignition switch START position 11 to 14 V Reconnect the ECM connector. NG --> See step 11 OK: Go to next step
- INSPECT ECM (STAR VOLTAGE) Remove the ST CUT relay from the engine room R/B. Turn the ignition switch to ON. Measure the voltage between the terminal of the engine room R/B and body ground while cranking the engine. Standard voltage Tester Connection Switch Condition Specified Condition 3 (ST CUT relay terminal) - Body ground Ignition switch START position 11 to 14 V Reinstall the ST CUT relay. NG --> See step 8 OK: Go to next step
- INSPECT ST CUT RELAY Remove the ST CUT relay from the engine room R/B. Measure the resistance between the terminals. Standard resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (Battery voltage applied to terminals 1 and 2) Reinstall the ST CUT relay. NG --> REPLACE ST CUT RELAY OK: Go to next step
- INSPECT PARK/NEUTRAL SWITCH ASSEMBLY Inspect the Park/Neutral Position (PNP) switch. Disconnect the PNP switch connector. Measure the resistance according to the value(s) in the table below. Standard resistance Gear Selector Lever Position Tester Connection Specified Condition P 4 - 9 Below 1 ohms N 4 - 9 Below 1 ohms Reconnect the PNP switch connector. NG --> See step 14 OK --> CHECK HARNESS AND CONNECTOR (STARTER SIGNAL CIRCUIT)
- INSPECT ST RELAY Remove the ST relay from the engine room R/B. Measure the resistance between the terminals. Standard resistance Tester Connection Specified Condition 3 - 5 10 kohms or higher 3 - 5 Below 1 ohms (Battery voltage applied to terminals 1 and 2) Reinstall the ST relay. NG --> REPLACE ST RELAY OK: Go to next step
- CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY) Disconnect the park/neutral position switch connector. Remove the ST relay from the engine room R/B. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition B13-9 - 1 (ST relay terminal) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B13-9 or 1 (ST relay terminal) - Body ground Always 10 kohms or higher Reinstall the ST relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- INSPECT ENGINE ROOM RELAY BLOCK (ST RELAY VOLTAGE) Remove the ST relay from the engine room R/B. Turn the ignition switch to ON. Measure the voltage between the terminal of the engine room R/B and body ground. Standard voltage Tester Connection Switch Condition Specified Condition 1 (ST relay terminal) - Body ground Ignition switch START position 11 to 14 V Reinstall the ST relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
- INSPECT STARTER ASSEMBLY Inspect the starter assembly. Refer to «INSPECTION»(ref-428888-S05521728322011101200000) . NG --> See step 15 OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - STARTER, STARTER - BATTERY)
- CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - ECM) Disconnect the power source control ECU connector. Disconnect the ECM connector. Measure the resistance between the terminals. Standard resistance (Check for open) Tester Connection Condition Specified Condition D44-39 (STSW) - A55-14 (STSW) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition D44-39 (STSW) or A55-14 (STSW) - Body ground Always 10 kohms or higher Reconnect the power source control ECU connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 12
- GO TO SMART KEY SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-428890-S09131314092011101200000)
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
- REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to «REMOVAL»(ref-428872-S22980711162011101200000)
- REPAIR OR REPLACE STARTER ASSEMBLY. Refer to «REMOVAL»(ref-428888-S07254193662011101200000)
- PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR INTAKE CONTROL) Connect Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Select the following menu items: Powertrain / Engine / Active Test / Activate the VSV for Intake Control. Check if operating noise can be heard when operating the intake air control valve using the Techstream. OK Operational noise can be heard. NG --> See step 2 OK --> See step 5
- CHECK INTAKE AIR SURGE TANK (INTAKE AIR CONTROL VALVE OPERATION) Disconnect the intake air control valve connector. Apply battery voltage between the terminals of the air intake valve connector. Check the intake air intake valve operation. OK Operational noise can be heard. Reconnect the intake air control valve connector. NG --> REPLACE INTAKE AIR SURGE TANK OK: Go to next step
- INSPECT TERMINAL VOLTAGE (INTAKE AIR CONTROL VALVE) Disconnect the intake air control valve connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) on the table below. Standard voltage Tester Connection Switch Condition Specified Condition B18-2 - Body ground Ignition switch ON 11 to 14 V Reconnect the intake air control valve connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - INTAKE AIR CONTROL VALVE) OK: Go to next step
- CHECK HARNESS AND CONNECTOR (INTAKE AIR CONTROL VALVE - ECM) Check the wire harness and connectors between the intake air control valve and ECM. Disconnect the intake air control valve connector. Disconnect the ECM connector. Measure the resistance between the terminals of the intake air control valve connector and ECM connector. Standard resistance (Check for open) Tester Connection Condition Specified Condition B18-1 - B50-107 (ACIS) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition B18-1 or B50-107 (ACIS) - Body ground Always 10 kohms or higher Reconnect the intake air control valve connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTAKE AIR CONTROL VALVE - ECM) OK --> See step 6
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVE THE VSV FOR AICS) Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Active Test / Activate the VSV for AICS. Check the operation of the VSV when the VSV is operated by Techstream. OK Tester Condition Specified Condition VSV is ON Air from port E flows out through port F VSV is OFF Air from port E flows out through the air filter NG --> See step 2 OK --> PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
- CHECK VSV (FOR AICV) Inspect the VSV for AICV. Refer to «INSPECTION»(ref-428900-S12192469092011101200000) . NG --> REPLACE VSV (FOR AICV) OK: Go to next step
- INSPECT TERMINAL VOLTAGE (VSV FOR AICV CONNECTOR) Disconnect the VSV for AICV connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) on the table below. Standard voltage Tester Connection Switch Condition Specified Condition A13-1 - Body ground Ignition switch ON 11 to 14 V Reconnect the VSV for AICV connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - VSV FOR AICV) OK: Go to next step
- CHECK HARNESS AND CONNECTOR (VSV FOR AICV - ECM) Check the wire harness between the VSV for AICV connector and the ECM connector. Disconnect the VSV for AICV connector. Disconnect the ECM connector. Measure the resistance between the terminals of the wire harness side connectors and body ground. Standard resistance (Check for open) Tester Connection Condition Specified Condition A13-2 - A55-4 (AICV) Always Below 1 ohms Standard resistance (Check for short) Tester Connection Condition Specified Condition A13-2 or A55-4 (AICV) - Body ground Always 10 kohms or higher Reconnect the VSV for AICV connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (VSV FOR AICV - ECM) OK: Go to next step
- INSPECT VACUUM TANK Inspect the vacuum tank. Refer to «INSPECTION - Step 1»(ref-428894-S31218658342011101200000) . NG --> REPLACE AIR CLEANER ASSEMBLY OK --> See step 6
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- CHECK THAT MIL IS ILLUMINATED Perform troubleshooting in accordance with the table below: Result Result Proceed to MIL remains ON A MIL does not illuminate B B --> See step 5 A: Go to next step
- CHECK WHETHER MIL TURNS OFF Connect Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Select the following menu items: Powertrain / Engine / Trouble Codes. Check if any DTCs have been stored. Note down any DTCs. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-428881-S06483383612011101200000) . Check if the MIL goes off. Standard MIL goes off. Result Result Proceed to MIL goes off A MIL does not go off B B --> See step 3 A --> See step 8
- CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the ECM connector. Turn the ignition switch to ON. Check that the MIL is not illuminated. OK MIL is not illuminated. Result Result Proceed to NG A OK B Reconnect the ECM connector. B --> See step 9 A: Go to next step
- CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM) Disconnect the ECM connector. Disconnect the combination meter assembly connector. Measure the resistance. Standard resistance (Check for short) Tester Connection Condition Specified Condition A55-24 (W) or E30-36 (CHK) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the combination meter assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER ASSEMBLY - ECM) OK --> See step 10
- CHECK THAT MIL IS ILLUMINATED Check if the MIL is illuminated when the ignition switch is turned to ON. OK MIL is illuminated. Result Result Proceed to OK A NG B B --> See step 6 A --> See step 11
- CHECK THAT ENGINE STARTS Turn the ignition switch to ON. Start the engine. Result Result Proceed to Engine starts A Engine does not start* B HINT: *: Techstream cannot communicate with the ECM. B --> See step 12 A: Go to next step
- INSPECT COMBINATION METER ASSEMBLY (MIL CIRCUIT) Check the MIL circuit. Refer to «PROBLEM SYMPTOMS TABLE»(ref-428901-S31190426882011101200000) . NG --> See step 13 OK --> CHECK AND REPLACE HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)
- REPAIR CIRCUIT INDICATED BY OUTPUT DTC. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-428881-S08160572302011101200000)
- REPLACE ECM. Refer to «REMOVAL»(ref-428889-S30962419642011101200000)
- REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-428897-S05030450452011101200000)
- PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-428881-S01770820252011101200000)
- GO TO VC OUTPUT CIRCUIT. Refer to «VC Output Circuit»(ref-428883-S13476604912011101200000)
- REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-428897-S05030450452011101200000)