Engine Control System (2ZR-FE) (Diagnostic Codes (P1604 - P2A00) & Circuit Tests): Other Toyota Matrix E140

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the Techstream off.
5. Turn the ignition switch off.
6. Disconnect the Techstream.
7. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
8. Connect the cable to the negative (-) battery terminal.
9. Connect the Techstream to the DLC3.
10. Turn the ignition switch to ON and turn the Techstream on.
11. Wait 16 seconds or more.
12. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
13. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
14. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Input the DTC: P1607.
16. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
17. If the judgment 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-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

PROCEDURE

1. READ OUTPUT DTC (DTC P1607) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . Turn the ignition switch off and turn the Techstream off. Disconnect the Techstream. Disconnect the cable from the battery negative (-) terminal and wait for 1 minute. Connect the cable to the battery negative (-) terminal. Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Wait 16 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC is not output A DTC P1607 is output B B --> See step 3 A --> See step 2
2. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-427311-S41732752332011101200000)
3. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)

P2102

P2103

P2102

P2103

Scheme 424

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. With the vehicle stationary, fully depress the accelerator pedal and quickly release it [B].
8. Check that 16 seconds or more have elapsed from the instant when the accelerator pedal is first depressed.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
10. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P2102 or P2103.
13. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
14. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

FAIL-SAFE

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions, is set, 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 5.5° 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 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 425

1. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle body assembly. Refer to «INSPECTION»(ref-427474-S10530191982011101200000) . NG --> See step 5 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (THROTTLE BODY - ECM) Disconnect the throttle body 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 B20-2 (M+) - B29-43 (M+) Always Below 1 ohms B20-1 (M-) - B29-42 (M-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B20-2 (M+) or B29-43 (M+) - Body ground Always 10 kohms or higher B20-1 (M-) or B29-42 (M-) - Body ground Always 10 kohms or higher Reconnect the ECM connector. Reconnect the throttle body connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE BODY - ECM) OK: Go to next step
3. INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Check for foreign objects between the throttle valve and the housing. OK No foreign objects between throttle valve and housing. NG --> REMOVE FOREIGN OBJECT AND CLEAN THROTTLE BODY ASSEMBLY OK: Go to next step
4. INSPECT THROTTLE BODY ASSEMBLY (THROTTLE VALVE) Check if the throttle valve opens and closes smoothly. OK Throttle valve opens and closes smoothly. NG --> See step 6 OK --> See step 7
5. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-427474-S31724106842011101200000)
6. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-427474-S31724106842011101200000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)

ALL

P2111 (THROTTLE ACTUATOR STUCK OPEN)

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

Scheme 426

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve).
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
8. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P2111 or P2112.
11. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
12. If the judgment 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-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When either of these DTCs, as well as other DTCs relating to electronic throttle control system malfunctions, is set, 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 5.5° 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 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.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2111 or P2112 is output A DTC P2111 or P2112 and other DTCs are output B HINT: If any DTCs other than P2111 or P2112 are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
2. INSPECT THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE) Check for contamination between the throttle valve and the housing. If necessary, clean the throttle with motor body assembly. And check that the throttle valve moves smoothly. OK Throttle valve is not contaminated with foreign objects and moves smoothly. NG --> See step 4 OK: Go to next step
3. 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-427311-S31989667402011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / 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 and ECT / 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-427305-S30340386252011101200000) . B --> See step 5 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
4. REPLACE THROTTLE BODY Replace the throttle body. Refer to «REMOVAL»(ref-427474-S31724106842011101200000) . NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) 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-427311-S31989667402011101200000) . Start the engine, and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve). Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. Result Result Proceed to DTC is not output A DTC P2111 or P2112 is output B B --> See step 7 A --> END
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)

COMPONENT OPERATING RANGE

Scheme 427

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. Slowly depress the accelerator pedal, raise the engine speed to approximately 3000 RPM over approximately 5 seconds, and then idle the engine [B].
8. Check that 16 seconds or more have elapsed since the engine was started.
9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
10. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
12. Input the DTC: P2118.
13. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
14. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When this DTC, or other DTCs relating to electronic throttle control system malfunctions, are set, 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 5.5° 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 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 428

1. 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 and ECT / Data List / +BM Voltage. Read the value displayed on the Techstream. Standard voltage 11 to 14 V NG --> See step 2 OK --> See step 3
2. CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) Disconnect the ECM connectors. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A37-3 (+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 B29-44 (ME01) - Body ground Always Below 1 ohms B29-105 (E1) - Body ground Always Below 1 ohms Reconnect the ECM connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 4
3. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-427311-S41732752332011101200000)
4. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)

Scheme 429

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Start the engine.
7. Idle the engine for 20 seconds.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
9. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2119.
12. 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 NORMAL, the system is normal. 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 [C].
13. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . 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 set, 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 5.5° 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.

Fail-safe mode continues until a pass condition is detected, and the ignition switch is then turned off.

1. 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 and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2119 is output A DTC P2119 and other DTCs are output B HINT: If any DTCs other than P2119 are output, troubleshoot those DTCs first. B --> See step 8 A: Go to next step
2. 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-427311-S31989667402011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / 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
3. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle body assembly. Refer to «INSPECTION»(ref-427474-S10530191982011101200000) . NG --> See step 6 OK: Go to next step
4. 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
5. 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-427311-S31989667402011101200000) . Turn the ignition switch off and wait for at least 30 seconds. Turn the ignition switch to ON. Enter the following menus: Powertrain / Engine and ECT / 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 and ECT / 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-427305-S30340386252011101200000) . B --> See step 7 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
6. REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly. Refer to «REMOVAL»(ref-427474-S31724106842011101200000) . NEXT: Go to next step
7. 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-427311-S31989667402011101200000) . Allow the engine to idle for 15 seconds or more. Fully depress and release the accelerator pedal several times quickly. Enter the following menus: Powertrain / Engine and ECT / 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
8. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)
9. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)

P2120

P2122

P2123

P2125

P2127

P2128

P2138

Scheme 430

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Fully depress and release the accelerator pedal [B].
7. Check that 5 seconds or more have elapsed since the ignition switch was turned to ON.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
9. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2120, P2122, P2123, P2125, P2127, P2128 or P2138.
12. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
13. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . 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 turned off.

Scheme 431

Scheme 432

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on [A].
6. Fully depress and release the accelerator pedal [B].
7. Check that 20 seconds or more have elapsed since the ignition switch was turned to ON.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
9. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2121.
12. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [C] again.
13. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . 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 two (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.

1. 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 and ECT / 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 DTCs other than P2121 are output, troubleshoot those DTCs first. B --> See step 7 A: Go to next step
2. READ VALUE USING TECHSTREAM (ACCELERATOR POSITION SENSOR) See step 1 NG --> See step 3 OK --> See step 6
3. REPLACE ACCELERATOR PEDAL ROD ASSEMBLY Replace the accelerator pedal rod assembly. Refer to «REMOVAL»(ref-427474-S24777007232011101200000) . NEXT: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . Start the engine. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2121 is output A DTC is not output B B --> END A --> See step 5
5. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)
6. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-427311-S41732752332011101200000)
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)

ALL

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196)

SENSOR CURRENT DETECTION MONITOR (P2195, P2196)

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196)

SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195)

SENSOR CURRENT DETECTION MONITOR (LOW SIDE MALFUNCTION P2196)

MONITOR RESULT

Refer to CHECKING MONITOR STATUS .

This confirmation driving pattern is used in the "Perform Confirmation Driving Pattern" step of the following diagnostic troubleshooting procedure.

Scheme 433

Scheme 434

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Turn the ignition switch to ON and turn the Techstream on.
7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].
8. On the Techstream, enter the following menus to check the fuel-cut status: Powertrain / Engine and ECT / Data List / Idle Fuel Cut.
9. Drive the vehicle at a speed between 37 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.
10. Shift the transaxle to 2nd gear [C].
11. Accelerate the vehicle to 40 mph (64 km/h) or more by depressing the accelerator pedal for at least 10 seconds [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
12. Soon after performing step [D] above, release the accelerator pedal for at least 4 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 1500 RPM).
13. Allow the vehicle to decelerate until the vehicle speed decreases to less than 6 mph (10 km/h).
14. Repeat steps [C] through [E] above at least 3 times in one driving cycle.
15. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [F].
16. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
17. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
18. Input the DTC: P2195 or P2196.
19. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [B] through [F] again.
20. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 435

ALL

AIR FUEL RATIO SENSOR MONITORING METHOD

CRANKSHAFT POSITION SENSOR MONITORING METHOD

AIR FUEL RATIO SENSOR MONITORING METHOD

CRANKSHAFT POSITION SENSOR MONITORING METHOD

Refer to CHECKING MONITOR STATUS .

Scheme 436

1. Connect the Techstream to the DLC3.
2. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A]. HINT: The A/C switch and all accessory switches should be off and the shift lever should be in P or N (neutral).
3. Turn the Techstream on.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
5. Drive the vehicle at 37 mph (60 km/h) or higher for 2 minutes or more [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: It is acceptable to turn electrical loads on while driving.
6. Idle the engine for 2 minutes or more [C]. HINT: The A/C switch and all accessory switches should be off and the shift lever should be in P or N (neutral).
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [D].
8. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
9. Drive the vehicle at less than 19 mph (30 km/h) for 5 seconds or more [E]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
10. Accelerate the vehicle from 19 to 37 mph (30 to 60 km/h) over a period of approximately 10 to 20 seconds. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Refer to the values of mass air flow and engine speed in Typical Enabling Conditions before accelerating the vehicle from 19 to 37 mph (30 to 60 km/h).
11. Drive the vehicle at 37 mph (60 km/h) or more for 5 seconds or more [F]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
12. Drive the vehicle at less than 19 mph (30 km/h) for 5 seconds or more [G]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
13. Accelerate the vehicle from 19 to 37 mph (30 to 60 km/h) over a period of approximately 10 to 20 seconds. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Refer to the values of mass air flow and engine speed in Typical Enabling Conditions before accelerating the vehicle from 19 to 37 mph (30 to 60 km/h).
14. Drive the vehicle at 37 mph (60 km/h) or more for 5 seconds or more [H]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
15. Repeat steps [G] through [H] above at least 2 times [I].
16. Idle the engine for 1 minute or more [J]. HINT: The A/C switch and all accessory switches should be off and the shift lever should be in P or N (neutral).
17. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [K].
18. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
19. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
20. Input the DTC: P219A.
21. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform the following procedure.
22. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P219A) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to Only P219A is output A P219A and other DTCs are output B HINT: If any DTCs other than P219A are output, troubleshoot those DTCs first. B --> See step 17 A: Go to next step
2. READ VALUE USING TECHSTREAM (FREEZE FRAME DATA) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored. Refer to «FREEZE FRAME DATA»(ref-427311-S32970141022011101200000) . Freeze Frame Data Items for DTC P219A Vehicle Speed Engine Speed Calculate Load Accelerator Idle Position Short FT #1 Long FT #1 Cylinder #1 Misfire Count to Cylinder #4 Misfire Count A/F Sensor Determination (worst value) #1 Engine Speed Fluctuation Avg (worst value) #1 to #4 HINT: When the sum of Short FT and Long FT is positive, the engine is running lean, and when the sum is negative, the engine is running rich. DTC stored during idling It is possible to conclude that the problem was detected due to a "lean imbalance" (detected using crankshaft speed variation). DTC stored while vehicle being driven It is possible to conclude that the problem was detected due to a "rich imbalance" (detected using the air fuel ratio sensor). NEXT: Go to next step
3. READ VALUE USING TECHSTREAM (MONITOR RESULT) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. HINT: If any misfire count ("Cylinder #1 Misfire Count" to "Cylinder #4 Misfire Count) increases while idling or driving the vehicle, proceed to step 6 . Perform inspections while focusing on the cylinder whose misfire count has increased. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / Fuel System / Details / A/F SENSOR DETERMINATION B1 and ENGINE SPEED FLUCTUATION AVERAGE B1. Check the Test Result (A/F SENSOR DETERMINATION B1 and ENGINE SPEED FLUCTUATION AVERAGE B1). Result Result Proceed to A/F SENSOR DETERMINATION is Fail A A/F SENSOR DETERMINATION and ENGINE SPEED FLUCTUATION AVERAGE are Fail B ENGINE SPEED FLUCTUATION AVERAGE is Fail B* HINT: When the results of A/F SENSOR DETERMINATION and ENGINE SPEED FLUCTUATION AVERAGE are both Pass, drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern again. If both results are still Pass, proceed to step 4 . *: Perform inspections while focusing on the cylinder whose engine speed fluctuation value ("Engine Speed Fluctuation Avg (worst value) #1" to "Engine Speed Fluctuation Avg (worst value) #4") was the largest. B --> See step 6 A: Go to next step
4. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE INJECTION VOLUME) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the engine. HINT: The A/C switch and all accessory switches should be off and the shift lever should be in P or N (neutral). Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume / Data List / Cylinder #1 to #4 Misfire Count. HINT: When the "Control the Injection Volume" Active Test is selected (injection volume is 0%), if a misfire count increases, proceed to step 6 (Check Intake System). Perform the Control the Injection Volume operation with the engine idling. Check the misfire counts ("Cylinder #1 Misfire Count" to "Cylinder #4 Misfire Count") while decreasing the injection volume in 5% increments. NOTE: Do not decrease the injection volume by more than 20%. Result The cylinder whose misfire count has not increased can be assumed to be running rich. Therefore, perform inspections while focusing on that cylinder. NEXT: Go to next step
5. CHECK FOR EXHAUST GAS LEAK Check for exhaust gas leaks. OK No gas leaks. NG --> REPAIR OR REPLACE EXHAUST SYSTEM OK: Go to next step
6. CHECK INTAKE SYSTEM Check the intake system for vacuum leakage. Refer to «ON-VEHICLE INSPECTION»(ref-427478-S39830028682011101200000) . OK No leakage in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
7. INSPECT SPARK PLUG Inspect the spark plug of the cylinder causing the imbalance. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-427475-S04010668172011101200000) . NG --> See step 18 OK: Go to next step
8. CHECK FOR SPARKS AND IGNITION Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427475-S04010668172011101200000) . WARNING: Always disconnect all fuel injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 15 OK: Go to next step
9. CHECK CYLINDER COMPRESSION PRESSURE Measure the cylinder compression pressure of the misfiring cylinder. Refer to «ON-VEHICLE INSPECTION - Step 10»(ref-427476-S08702150682011101200000) . NG --> CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION OK: Go to next step
10. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) See step 1 NG --> See step 19 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR - ECM) See step 3 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR - ECM) OK: Go to next step
12. INSPECT FUEL INJECTOR ASSEMBLY OF CYLINDER CAUSING IMBALANCE Check the fuel injector injection [whether fuel volume is high or low, and whether injection pattern is poor]. Refer to «INSPECTION»(ref-427477-S37907485192011101200000) . NG --> See step 20 OK: Go to next step
13. CHECK FOR CAUSE OF FAILURE If the cause of the problem has not been found even after performing the troubleshooting procedure, perform the inspection below. Check the intake valve for deposits. HINT: As the DTC may have been stored due to deposits on the intake valve, remove the cylinder head and check the intake valve. NEXT: Go to next step
14. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Check for DTCs. Result P219A is not output. NEXT --> END
15. CHANGE TO NORMAL SPARK PLUG AND CHECK SPARK OF CYLINDER CAUSING IMBALANCE Change the installed spark plug to a spark plug that functions normally. Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427475-S04010668172011101200000) . WARNING: Always disconnect all fuel injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 16 OK --> See step 22
16. CHANGE TO NORMAL IGNITION COIL ASSEMBLY AND CHECK SPARK OF CYLINDER CAUSING IMBALANCE Change the ignition coil assembly to an ignition coil assembly that functions normally. Perform a spark test. Refer to «ON-VEHICLE INSPECTION - Step 1»(ref-427475-S04010668172011101200000) . WARNING: Always disconnect all fuel injector connectors. NOTE: Do not crank the engine for more than 2 seconds. OK Sparks jump across electrode gap. NG --> See step 21 OK --> See step 23
17. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)
18. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-427474-S42852575522011101200000)
19. Refer to «Fuel Injector Circuit»(ref-427472-S25134244932011101200000)
20. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-427477-S40146131942011101200000)
21. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)
22. REPLACE SPARK PLUG. Refer to «REMOVAL»(ref-427474-S42852575522011101200000)
23. REPLACE IGNITION COIL ASSEMBLY. Refer to «REMOVAL»(ref-427474-S42852575522011101200000)

P2237 AND P2238

OTHER

P2237 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-)

P2238 (AIR FUEL RATIO SENSOR LOW IMPEDANCE)

OTHER

P2237 (AIR FUEL RATIO SENSOR OPEN CIRCUIT BETWEEN A1A+ AND A1A-)

P2238 (AIR FUEL RATIO SENSOR LOW IMPEDANCE)

P2238 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A+ AND GND)

P2239 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A+ AND +B)

P2252 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A- AND GND)

P2253 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A- AND +B)

P2238 (AIR FUEL RATIO SENSOR SHORT CIRCUIT BETWEEN A1A+ AND A1A-)

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on.
6. Start the engine and wait 5 minutes.
7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
8. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10. Input the DTC: P2237, P2238, P2239, P2252 or P2253.
11. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, idle the engine for 5 minutes and check the DTC judgment result again.
12. If no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) Disconnect the air fuel ratio sensor connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B46-1 (HA1A) - B29-104 (HA1A) Always Below 1 ohms B46-3 (A1A+) - B29-103 (A1A+) Always Below 1 ohms B46-4 (A1A-) - B29-126 (A1A-) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B46-1 (HA1A) or B29-104 (HA1A) - Body ground Always 10 kohms or higher B46-3 (A1A+) or B29-103 (A1A+) - Body ground Always 10 kohms or higher B46-4 (A1A-) or B29-126 (A1A-) - Body ground Always 10 kohms or higher Reconnect the air fuel ratio sensor connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
2. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-427474-S04353631162011101200000) . NEXT: Go to next step
3. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. NEXT: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the DTCs. Result Result Proceed to DTC is not output A DTC P2237, P2238, P2239, P2252 or P2253 is output B B --> See step 5 A --> END
5. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)

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 23 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).

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on.
6. Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check / Automatic Mode.
7. After "Evaporative System Check" is completed, check All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
8. Input the DTC: P2420.
9. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
10. If the judgment 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-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

ALL

CASE 1

CASE 2

CASE 3

CASE 1

CASE 2

CASE 3

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON and turn the Techstream on.
3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
4. Turn the ignition switch off and wait for at least 30 seconds.
5. Turn the ignition switch to ON and turn the Techstream on.
6. Start the engine.
7. Idle the engine for 10 minutes or more.
8. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
9. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
10. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
11. Input the DTC: P2610.
12. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
13. If the judgment 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-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000) . NEXT: Go to next step
2. CHECK WHETHER DTC OUTPUT RECURS (DTC P2610) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . Start the engine and wait for 10 minutes or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. If no pending DTC is displayed, the repair has been successfully completed. NEXT --> END

Refer to CHECKING MONITOR STATUS .

HINT

Performing this confirmation driving pattern will activate the air fuel ratio sensor response monitor.

Scheme 437

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) .
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Turn the ignition switch to ON and turn the Techstream on.
7. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Details.
8. Check that RES RATE B1S1 is Incomplete.
9. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [A].
10. Drive the vehicle at approximately 37 mph (60 km/h) for 10 minutes or more in a city area [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
11. Check the monitor result values on the Techstream by entering the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Details / RES RATE B1S1.
12. If the values indicated on the Techstream do not change, perform Readiness Monitor Drive Pattern for the air fuel ratio sensor and heated oxygen sensor. Refer to «READINESS MONITOR DRIVE PATTERN»(ref-427311-S30997881282011101200000) .
13. Note the value of Monitor Result.
14. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
15. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
16. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
17. Input the DTC: P2A00.
18. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction. If the judgment result shows INCOMPLETE or UNKNOWN, perform the following procedure.
19. Drive the vehicle at a speed between 47 and 63 mph (75 and 100 km/h) for 10 minutes [D]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
20. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [C].
21. Read the pending DTCs. HINT: If a pending DTC is output, the system is malfunctioning. If a pending DTC is not output, perform the following procedure.
22. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
23. Input the DTC: P2A00.
24. 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 NORMAL, the system is normal. If the judgment result shows ABNORMAL, the system has a malfunction.
25. If the judgment 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-427311-S31989667402011101200000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2A00) Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read the DTCs. Result Result Proceed to DTC P2A00 is output A DTC P2A00 and other DTCs are output B HINT: If any DTCs other than P2A00 are output, troubleshoot those DTCs first. B --> See step 9 A: Go to next step
2. INSPECT AIR FUEL RATIO SENSOR (HEATER RESISTANCE). Refer to «PROCEDURE - Step 1»(ref-427479-S05521324022011101200000) NG --> See step 10 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (AIR FUEL RATIO SENSOR - ECM) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AIR FUEL RATIO SENSOR - ECM) OK: Go to next step
4. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . 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 in accordance with the driving pattern described in Confirmation Driving Pattern. NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2A00) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC P2A00. Check the DTC judgment result. Result Result Proceed to ABNORMAL (DTC P2A00 is output) A NORMAL (DTC is not output) B B --> See step 11 A: Go to next step
6. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-427474-S04353631162011101200000) . NEXT: Go to next step
7. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . 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 in accordance with the driving pattern described in Confirmation Driving Pattern. NEXT: Go to next step
8. CHECK WHETHER DTC OUTPUT RECURS (DTC P2A00) Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC P2A00. Check the DTC judgment result. Result Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2A00 is output) B B --> See step 12 A --> END
9. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)
10. REPLACE AIR FUEL RATIO SENSOR. Refer to «REMOVAL»(ref-427474-S04353631162011101200000)
11. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-427311-S41732752332011101200000)
12. CHECK ENGINE TO DETERMINE CAUSE OF EXTREMELY RICH OR LEAN ACTUAL AIR FUEL RATIO. Refer to «DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1)»(ref-427479-S02541509892011101200000)

RELATED DTCS

If any EVAP system DTCs are set, the malfunctioning area can be determined using the table below.

Scheme 438

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.

HINT

After a repair, check Monitor Status by performing the Key-off Monitor Confirmation and Purge Flow Monitor Confirmation described below.

1. 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. (2432 m) The engine coolant temperature is between 4.4°C and 35°C (40°F and 95°F) The intake air temperature 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 5 hours (7 or 9.5 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 the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / 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.
2. 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 is between 4.4°C and 35°C (40°F and 95°F) The intake air temperature 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 engine coolant temperature reaches more than 75°C (167°F). Increase the engine speed to 3000 RPM once. Allow the engine to idle and turn the air conditioning on for 1 minute. Monitor Status Turn the ignition switch off (if ON or the engine is running). Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Monitor. Check the Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor did not complete. Make sure that the preconditions have been met, and perform the Monitor Conditions again.

Refer to CHECKING MONITOR STATUS .

1. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) Disconnect the fuel injector assembly connectors. 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 B8-1 - Body ground Ignition switch ON 11 to 14 V B9-1 - Body ground Ignition switch ON 11 to 14 V B10-1 - Body ground Ignition switch ON 11 to 14 V B11-1 - Body ground Ignition switch ON 11 to 14 V Turn the ignition switch off. Reconnect the fuel injector assembly connectors. NG --> See step 4 OK: Go to next step
2. INSPECT FUEL INJECTOR ASSEMBLY Inspect the fuel injector assembly. Refer to «INSPECTION»(ref-427477-S37907485192011101200000) . NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) Disconnect the fuel injector assembly connectors. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B8-2 - B29-86 (#10) Always Below 1 ohms B9-2 - B29-85 (#20) Always Below 1 ohms B10-2 - B29-84 (#30) Always Below 1 ohms B11-2 - B29-83 (#40) Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B8-2 or B29-86 (#10) - Body ground Always 10 kohms or higher B9-2 or B29-85 (#20) - Body ground Always 10 kohms or higher B10-2 or B29-84 (#30) - Body ground Always 10 kohms or higher B11-2 or B29-83 (#40) - Body ground Always 10 kohms or higher Reconnect the fuel injector assembly connectors. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) OK --> See step 6
4. CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - FUEL INJECTOR ASSEMBLY) Disconnect the fuel injector assembly connectors. Remove the integration relay from the engine room relay block. Disconnect the integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Condition Specified Condition B8-1 - 1A-4 Always Below 1 ohms B9-1 - 1A-4 Always Below 1 ohms B10-1 - 1A-4 Always Below 1 ohms B11-1 - 1A-4 Always Below 1 ohms Standard Resistance (Check for Short) Tester Connection Condition Specified Condition B8-1 or 1A-4 - Body ground Always 10 kohms or higher B9-1 or 1A-4 - Body ground Always 10 kohms or higher B10-1 or 1A-4 - Body ground Always 10 kohms or higher B11-1 or 1A-4 - Body ground Always 10 kohms or higher Reconnect the fuel injector assembly connectors. Reconnect the integration relay connector. Reinstall the integration relay. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - FUEL INJECTOR ASSEMBLY) OK --> See step 7
5. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-427477-S40146131942011101200000)
6. PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-427311-S28502424922011101200000)
7. CHECK ECM POWER SOURCE CIRCUIT. Refer to «ECM Power Source Circuit»(ref-427472-S23276797802011101200000)

1. CHECK DTC OUTPUT Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: System Select / Health Check. Check DTCs. Result Result Proceed to DTC is not output A DTC is output B B --> See step 11 A: Go to next step
2. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH AND ST1) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Stop Light Switch and ST1. Check the Data List indication when the brake pedal is depressed and released. OK Techstream Display Condition Specified Condition Stop Light Switch Brake pedal released OFF Brake pedal depressed ON ST1 Brake pedal released OFF Brake pedal depressed ON NG --> See step 10 OK: Go to next step
3. INSPECT BRAKE PEDAL SUB-ASSEMBLY Inspect and adjust the brake pedal sub-assembly. Refer to «ADJUSTMENT»(ref-427466-S28650433092011101200000) . HINT: If the stop light switch turns ON too late, the start of brake override system control may be delayed; if it turns ON too soon, brake override system control may begin too early, so conduct inspection of the brake pedal sub-assembly and stop light switch assembly. NG --> See step 9 OK: Go to next step
4. READ VALUE USING TECHSTREAM (ACCELERATOR PEDAL POSITION SENSOR) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / Accel Sens. No. 1 Volt % and Accel Sens. No. 2 Volt %. Read the value displayed on the Techstream. OK Techstream Display Condition Specified Condition Accel Sens. No. 1 Volt % Accelerator Pedal Released --> Depressed --> Released Values smoothly change following accelerator pedal operation Accel Sens. No. 2 Volt % HINT: For numerical values of Accel Sens. No. 1 Volt % and Accel Sens. No. 2 Volt %, refer to the Data List. Refer to «DATA LIST / ACTIVE TEST»(ref-427311-S02190380812011101200000) . NG --> See step 8 OK: Go to next step
5. READ VALUE USING TECHSTREAM (VEHICLE SPEED) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Start the engine. Enter the following menus: Powertrain / Engine and ECT / Data List / Vehicle Speed. Read the value displayed on the Techstream. Standard Techstream Display Condition Specified Condition Vehicle Speed Vehicle stopped, engine running 0 mph (0 km/h) Vehicle running at constant speed between 10 to 40 mph (16.1 to 64.4 km/h) No large fluctuations when driving at a constant speed WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test. NG --> See step 7 OK: Go to next step
6. READ VALUE USING TECHSTREAM (FR, FL, RR, RL WHEEL SPEED) Connect the Techstream to the DLC3. Turn the ignition switch to ON and turn the Techstream on. Start the engine. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / FR Wheel Speed, FL Wheel Speed, RR Wheel Speed and RL Wheel Speed. Read the value displayed on the Techstream. Standard Techstream Display Condition Specified Condition FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed Vehicle stopped, engine running 0 mph (0 km/h) Vehicle running at constant speed between 10 to 40 mph (16.1 to 64.4 km/h) No large fluctuations when driving at a constant speed WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws. HINT: Data can be captured relatively easily by using the snapshot function in the Data List. Confirm the data after performing the drive test. NG --> INSPECT FRONT OR REAR SPEED SENSOR OK --> END
7. GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT). Refer to «Speed Signal Circuit»(ref-427460-S40820750912011101200000)
8. REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY. Refer to «REMOVAL»(ref-427474-S24777007232011101200000)
9. REPAIR OR REPLACE BRAKE PEDAL SUB-ASSEMBLY. Refer to «REMOVAL»(ref-427466-S12649992152011101200000)
10. INSPECT STOP LIGHT SWITCH ASSEMBLY. Refer to «INSPECTION»(ref-427461-S30875341612011101200000)
11. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)

1. CHECK THAT MIL IS ILLUMINATED Turn the ignition switch to ON. Check the illumination of the MIL. Result Condition Proceed to MIL remains illuminated (Even after ignition switch to ON and several seconds have passed, MIL still remains illuminated) A MIL remains off (Does not illuminate at all) B MIL illuminates for several seconds, but turns off after engine is started C B --> See step 5 C --> SYSTEM OK A: Go to next step
2. CHECK WHETHER MIL TURNS OFF Connect the Techstream to the DLC3. Turn the ignition switch to ON. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check if any DTCs have been stored. Note down any DTCs. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-427311-S31989667402011101200000) . Check if the MIL goes off. OK MIL goes off. NG --> See step 3 OK --> See step 8
3. CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS) Disconnect the A37 ECM connector. Turn the ignition switch to ON. Check that the MIL is not illuminated. OK MIL is not illuminated. Reconnect the ECM connector. NG --> See step 4 OK --> See step 9
4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) Disconnect the combination meter connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Condition Specified Condition E55-20 (EFI) or A37-24 (W) - Body ground Always 10 kohms or higher Reconnect the combination meter connector. Reconnect the ECM connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM) OK --> See step 10
5. 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: *: The Techstream cannot communicate with the ECM. B --> See step 11 A: Go to next step
6. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BODY GROUND) Disconnect the ECM connector. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition A37-24 (W) - Body ground Ignition switch ON 11 to 14 V NG --> See step 7 OK --> See step 9
7. CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) Disconnect the combination meter 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 E55-20 (EFI) - A37-24 (W) Always Below 1 ohms Reconnect the ECM connector. Reconnect the combination meter connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM) OK --> See step 10
8. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-427311-S35215754562011101200000)
9. REPLACE ECM. Refer to «REMOVAL»(ref-427474-S42388386582011101200000)
10. REPLACE COMBINATION METER. Refer to «REMOVAL»(ref-427467-S42331857252011101200000)
11. Refer to «VC Output Circuit»(ref-427472-S05283650472011101200000)