Engine Control System (Diagnostic Codes (P1604-P2610) & Circuit Tests)): Other Lexus GX J150

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

CONFIRMATION DRIVING PATTERN

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the Techstream off.
5. Turn the engine 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 engine switch on (IG) 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-524126-S41645429092013012800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

PROCEDURE

1. CHECK FOR DTC Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the Techstream off. Turn the engine switch off. Disconnect the Techstream. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute. Connect the cable to the negative (-) battery terminal. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Wait 16 seconds or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check for DTCs. OK P1607 is not output. NG --> See step 3 OK --> See step 2
2. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)
3. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

CASE 1 AND 4

CASE 2

CASE 3

CASE 1

CASE 2

CASE 3

CASE 4

COMPONENT OPERATING RANGE

Note. This Air Injection Check only allows technicians to operate the secondary air injection system for a maximum of 5 seconds. Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks. While secondary air injection system operation using the Techstream is prohibited, the Techstream display indicates the prohibition (WAIT or ERROR). If ERROR is displayed on the Techstream during the test, stop the engine for 10 minutes, and then try again. Performing Air Injection Check repeatedly may cause damage to the secondary air injection system. If it is necessary to repeat the check, leave an interval of several minutes between System Check operations to prevent the system from overheating. When performing the Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the engine switch turned on (IG) or the engine running. Turn the engine switch off when the Air Injection Check operation finishes.

1. Start the engine and warm it up.
2. Turn the engine switch off.
3. Connect the Techstream to the DLC3.
4. Turn the engine switch on (IG).
5. Turn the Techstream on.
6. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) .
7. Turn the engine switch off and wait for at least 30 seconds.
8. Turn the engine switch on (IG) and turn the Techstream on.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / Air injection check / Automatic Mode.
10. Start the engine after the Techstream initialization is finished.
11. Perform the System Check operation by pressing ENTER (Next).
12. Perform the following to confirm the secondary air injection system pending codes: Press ENTER (Exit).
13. Check for pending DTCs. OK No pending DTC is output.
14. After "Air injection check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Input the DTC: P1613.
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-524126-S41645429092013012800000) . HINT: If no permanent DTC is output, the system is normal. If a permanent DTC is output, the system is malfunctioning.
18. Turn the engine switch off.

P2102

P2103

P2102

P2103

Scheme 118

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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-524126-S41645429092013012800000) . 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, or other DTCs relating to ETCS (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 7° 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 position 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.

The ECM continues operating in fail-safe mode until a pass condition is detected, and the engine switch is then turned off.

Scheme 119

1. INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR) Inspect the throttle body assembly. Refer to «INSPECTION - Step 1»(ref-524262-S27955935972013012800000) . NG --> See step 5 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR (THROTTLE ACTUATOR - ECM) Disconnect the throttle body connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C7-2 (M+) - C31-20 (M+) Always Below 1 ohms C7-1 (M-) - C30-29 (M-) Always Below 1 ohms C7-2 (M+) or C31-20 (M+) - Body ground Always 10 kohms or higher C7-1 (M-) or C30-29 (M-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT THROTTLE BODY ASSEMBLY 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 OK: Go to next step
4. INSPECT 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-524262-S00817459492013012800000)
6. REPLACE THROTTLE BODY ASSEMBLY. Refer to «REMOVAL»(ref-524262-S00817459492013012800000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

ALL

P2111 (THROTTLE ACTUATOR STUCK OPEN)

P2112 (THROTTLE ACTUATOR STUCK CLOSED)

Scheme 120

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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-524126-S41645429092013012800000) . 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 or other DTCs relating to ETCS (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 7° 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 position 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.

The ECM continues operating in fail-safe mode until a pass condition is detected, and the engine 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 engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P2111 or P2112 is output A 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 7 A: Go to next step
2. 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 4 OK: Go to next step
3. READ VALUE USING TECHSTREAM (THROTTLE POSITION) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off and wait for at least 30 seconds. Turn the engine switch on (IG). 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-524109-S04822504082013012800000) . B --> See step 5 A --> REPAIR OR REPLACE HARNESS OR CONNECTOR
4. REPLACE THROTTLE BODY ASSEMBLY Replace the throttle body assembly. Refer to «REMOVAL»(ref-524262-S00817459492013012800000) . NEXT: Go to next step
5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine, and then 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 No DTC is output A P2111 or P2112 is output B B --> See step 6 A --> END
6. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
7. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)

Scheme 121

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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-524126-S41645429092013012800000) . 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 ETCS (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 7° 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 position 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.

The ECM continues operating in fail-safe mode until a pass condition is detected, and the engine switch is then turned off.

Scheme 122

1. READ VALUE USING TECHSTREAM (+BM VOLTAGE) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / +BM Voltage. Read the value displayed on the Techstream. RESULT Result Proceed to Below 11 V or higher than 14 V A 11 to 14 V B B --> See step 4 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (ECM - BATTERY, BODY GROUND) Disconnect the ECM connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition C30-23 (+BM) - Body ground Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C30-12 (E1) - Body ground Always Below 1 ohms C31-10 (ME01) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
4. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)

Scheme 123

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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-524126-S41645429092013012800000) . 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 ETCS (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 7° 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 position 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.

The ECM continues operating in fail-safe mode until a pass condition is detected, and the engine switch is then turned off.

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P2119 is output A 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 engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off and wait for at least 30 seconds. Turn the engine switch on (IG). 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-524262-S24908239952013012800000) . 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 engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off and wait for at least 30 seconds. Turn the engine switch on (IG). 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-524109-S04822504082013012800000) . 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-524262-S00817459492013012800000) . NEXT: Go to next step
7. CHECK WHETHER DTC OUTPUT RECURS (DTC P2119) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . 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 DTCs. RESULT Result Proceed to No DTC is output A P2119 is output B B --> See step 9 A --> END
8. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)
9. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

P2120

P2122

P2123

P2125

P2127

P2128

P2138

Scheme 124

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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 engine switch was turned on (IG).
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-524126-S41645429092013012800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

When DTC P2120, P2121, P2122, P2123, P2125, P2127, P2128 or P2138 is stored, 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.

The ECM continues operating in fail-safe mode until a pass condition is detected, and the engine switch is then turned off.

Scheme 125

Scheme 126

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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 engine switch was turned on (IG).
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-524126-S41645429092013012800000) . 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 position to allow the vehicle to continue driving. If both circuits malfunction, the ECM regards the accelerator pedal as being fully released. In this case, the throttle valve remains closed as if the engine is idling.

If a pass condition is detected and then the engine switch is turned off, the fail-safe operation stops and the system returns to normal.

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2121) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P2121 is output A P2121 and other DTCs are output B HINT: If any DTCs other than P2121 are output, troubleshoot those DTCs first. B --> See step 6 A: Go to next step
2. READ VALUE USING TECHSTREAM (ACCELERATOR PEDAL POSITION SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / 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 Operation Accel Sensor Out No. 1 Accel Sensor Out No. 2 Difference between Accel Sensor Out No. 1 and Accel Sensor Out No. 2 Released 0.5 to 1.1 V 1.2 to 2.0 V 0.4 to 1.2 V Depressed 2.6 to 4.5 V 3.4 to 5.0 V TEXT IN ILLUSTRATION *a Depressed *b Released NG --> See step 3 OK --> See step 7
3. REPLACE ACCELERATOR PEDAL POSITION SENSOR ASSEMBLY Replace the accelerator pedal position sensor assembly. Refer to «REMOVAL»(ref-524262-S17646998722013012800000) . NEXT: Go to next step
4. CHECK WHETHER DTC OUTPUT RECURS (DTC P2121) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern. Read DTCs. RESULT Result Proceed to P2121 is output A No DTC is output B B --> END A --> See step 5
5. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
6. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)
7. CHECK FOR INTERMITTENT PROBLEMS. Refer to «CHECK FOR INTERMITTENT PROBLEMS»(ref-524126-S03735106152013012800000)

ALL

SENSOR VOLTAGE DETECTION MONITOR

SENSOR CURRENT DETECTION MONITOR

SENSOR VOLTAGE DETECTION MONITOR (LEAN SIDE MALFUNCTION P2195 AND P2197)

SENSOR VOLTAGE DETECTION MONITOR (RICH SIDE MALFUNCTION P2196 AND P2198)

SENSOR CURRENT DETECTION MONITOR (HIGH SIDE MALFUNCTION P2195 AND P2197)

SENSOR CURRENT DETECTION MONITOR (RICH SIDE MALFUNCTION P2196 AND P2198)

MONITOR RESULT

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

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

Scheme 127

Scheme 128

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
5. Turn the engine switch off and wait for at least 30 seconds.
6. Turn the engine switch on (IG) and turn the Techstream on.
7. Start the engine and warm it up until the ECT 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 60 and 120 km/h (38 and 75 mph) for at least 10 minutes [B]. WARNING: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
10. Shift the transmission to 2nd gear [C].
11. Accelerate the vehicle to 64 km/h (40 mph) 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 1000 rpm).
13. Allow the vehicle to decelerate until the vehicle speed decreases to less than 10 km/h (6 mph).
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, P2196, P2197 or P2198.
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-524126-S41645429092013012800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

Scheme 129

1. CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO P2195, P2196, P2197 OR P2198) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Read DTCs. RESULT Result Proceed to P2195, P2196, P2197 or P2198 is output A "P2195, P2196, P2197 or P2198" and "P0136, P0137, P0138, P0156, P0157 or P0158" are output A P2195, P2196, P2197 or P2198 and other DTCs are output B HINT: If any DTCs relating to the air fuel ratio sensor (DTCs for the air fuel ratio sensor heater or air fuel ratio sensor admittance) are output, troubleshoot those DTCs first. B --> See step 19 A: Go to next step
2. CONFIRM IF VEHICLE HAS RUN OUT OF FUEL IN PAST Has the vehicle run out of fuel in the past? NO --> See step 4 YES: Go to next step
3. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off. Turn the engine switch on (IG) 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. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) B B --> See step 4 A --> DTC CAUSED BY RUNNING OUT OF FUEL
4. READ VALUE USING TECHSTREAM (TEST VALUE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Drive the vehicle in accordance with the drive pattern described in Confirmation Driving Pattern. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Current. Check that the status of O2 Sensor is Complete. If the status is still Incomplete, drive the vehicle according to the driving pattern again. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / O2 Sensor / Details / RANGE B1 S1 or RANGE B2 S1. Check the test value of the air fuel ratio sensor output current during fuel-cut. RESULT Test Value Proceed to Within normal range (1.4 mA or higher, and below 3.6 mA) A Outside normal range (below 1.4 mA, or 3.6 mA or higher) B B --> See step 16 A: Go to next step
5. READ VALUE USING TECHSTREAM (OUTPUT VOLTAGE OF AIR FUEL RATIO SENSOR) Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Warm up the air fuel ratio sensor at an engine speed of 2500 rpm for 90 seconds. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume. Perform the Control the Injection Volume operation with the engine idling. Monitor the output voltages of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1 and O2S B2S2) displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12.0% to +12.0%. The injection volume can be changed in fine gradations. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds. Techstream Display (Sensor) Injection Volume Status Voltage AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) +12.0% Rich Below 3.1 V AFS Voltage B1S1 or AFS Voltage B2S1 (Air fuel ratio) -12.0% Lean Higher than 3.4 V O2S B1S2 or O2S B2S2 (Heated oxygen) +12.0% Rich Higher than 0.55 V O2S B1S2 or O2S B2S2 (Heated oxygen) -12.0% Lean Below 0.4 V RESULT Status of AFS Voltage B1S1 or AFS Voltage B2S1 Status of O2S B1S2 or O2S B2S2 Air Fuel Ratio Condition and Air Fuel Ratio Sensor Condition Misfire Suspected Trouble Area Proceed to Lean Lean Actual air fuel ratio lean May occur PCV valve and hose PCV hose connections Fuel injector blockage Gas leaks from exhaust system Intake system Fuel pressure Mass air flow meter assembly Manifold absolute pressure sensor Engine coolant temperature sensor EGR valve assembly A Rich Rich Actual air fuel ratio rich - Fuel injector leakage or blockage Gas leaks from exhaust system Ignition system Fuel pressure Mass air flow meter assembly Manifold absolute pressure sensor Engine coolant temperature sensor A Lean Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Rich Lean/Rich Air fuel ratio sensor malfunction - Air fuel ratio sensor B Lean/Rich Lean/Rich Normal - - B Lean: During the Control the Injection Volume Active Test, the air fuel ratio sensor output voltage (AFS Voltage) is consistently higher than 3.4 V, and the heated oxygen sensor output voltage (O2S) is consistently below 0.4 V. Rich: During the Control the Injection Volume Active Test, the AFS Voltage is consistently below 3.1 V, and the O2S is consistently higher than 0.55 V. Lean/Rich: During the Control the Injection Volume Active Test, the output voltage of the heated oxygen sensor alternates correctly. HINT: Refer to "Data List / Active Test" [AFS Voltage B1S1, AFS Voltage B2S1, O2S B1S2 and O2S B2S2]. Refer to «DATA LIST / ACTIVE TEST»(ref-524126-S20424571482013012800000) . B --> See step 16 A: Go to next step
6. CHECK INTAKE SYSTEM Check the intake system for vacuum leaks. Refer to «ON-VEHICLE INSPECTION - Step 3»(ref-524270-S25831447522013012800000) . OK No leaks in intake system. NG --> REPAIR OR REPLACE INTAKE SYSTEM OK: Go to next step
7. 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
8. CHECK FUEL PRESSURE Check the fuel pressure. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-524273-S28719777252013012800000) . NG --> See step 18 OK: Go to next step
9. INSPECT FUEL INJECTOR ASSEMBLY Check the fuel injector assembly (whether fuel volume is high or low, and whether injector pattern is poor). Refer to «INSPECTION - Step 1»(ref-524269-S37380659192013012800000) . NG --> See step 21 OK: Go to next step
10. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-524262-S00247626492013012800000) . NEXT: Go to next step
11. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off. Turn the engine switch on (IG) 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. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Result Proceed to ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) A NORMAL (DTC is not output) B B --> END A: Go to next step
12. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) Connect the Techstream to the DLC3. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher. HINT: When performing the Active Test, make sure the shift lever is in P or N. The A/C switch and all accessory switches should be off. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position. Confirm that Throttle Idle Position is ON and check the engine idling condition and the value of MAP in the Data List while performing the Active Test. HINT: Do not leave the EGR valve open for 10 seconds or more during the Active Test. Be sure to return the EGR valve to step 0 when the Active Test is completed. OK MAP and idling condition change in response to EGR step position as follows. Standard - EGR Step Position (Active Test) Step 0 Step 0 to 30 Idling condition Steady idling Idling changes from steady to rough idling or engine stalls MAP (Data List) 20 to 40 kPa (150 to 300 mmHg) MAP value is at least 10 kPa (75 mmHg) higher than when EGR valve is fully closed OK --> See step 14 NG --> See step 13
13. INSPECT EGR VALVE ASSEMBLY Remove the EGR valve assembly. Refer to «REMOVAL»(ref-524251-S06751532262013012800000) . Check if the EGR valve is stuck open. OK EGR valve is tightly closed. NG --> See step 22 OK: Go to next step
14. REPLACE ECM Replace the ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000) . NEXT: Go to next step
15. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off. Turn the engine switch on (IG) 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. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Techstream Display Description NORMAL DTC judgment completed System normal ABNORMAL DTC judgment completed System abnormal INCOMPLETE DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions UNKNOWN Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit NEXT --> END
16. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-524262-S00247626492013012800000) . NEXT: Go to next step
17. PERFORM CONFIRMATION DRIVING PATTERN Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Turn the engine switch off. Turn the engine switch on (IG) 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. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness. Input the DTC: P2195, P2196, P2197 or P2198. Check the DTC judgment result. RESULT Result Proceed to NORMAL (DTC is not output) A ABNORMAL (DTC P2195, P2196, P2197 or P2198 is output) B B --> See step 20 A --> END
18. CHECK FUEL LINE Check the fuel lines for leaks or blockage. NG --> REPAIR OR REPLACE FUEL LINE OK --> See step 23
19. GO TO DTC CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)
20. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
21. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-524269-S42378634592013012800000)
22. REPLACE EGR VALVE ASSEMBLY. Refer to «REMOVAL»(ref-524251-S06751532262013012800000)
23. REPLACE FUEL PUMP. Refer to «REMOVAL»(ref-524269-S41706281042013012800000)

P2237, P2238, P2240 AND P2241

P2239, P2242, P2252, P2253, P2255 AND P2256

AIR FUEL RATIO SENSOR - OPEN CIRCUIT BETWEEN AF+ AND AF

AIR FUEL RATIO SENSOR - LOW IMPEDANCE

OTHER

P2237 AND P2240

P2238 AND P2241

P2239 AND P2242

P2252 AND P2255

P2253 AND P2256

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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, P2240, P2241, P2242, P2252, P2253, P2255 or P2256.
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-524126-S41645429092013012800000) . 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 Tester Connection Condition Specified Condition C20-1 (HA1A) - C31-17 (HA1A) Always Below 1 ohms C20-3 (A1A+) - C30-1 (A1A+) Always Below 1 ohms C20-4 (A1A-) - C30-2 (A1A-) Always Below 1 ohms C19-1 (HA2A) - C31-19 (HA2A) Always Below 1 ohms C19-3 (A2A+) - C30-7 (A2A+) Always Below 1 ohms C19-4 (A2A-) - C30-8 (A2A-) Always Below 1 ohms C20-1 (HA1A) or C31-17 (HA1A) - Body ground Always 10 kohms or higher C20-3 (A1A+) or C30-1 (A1A+) - Body ground Always 10 kohms or higher C20-4 (A1A-) or C30-2 (A1A-) - Body ground Always 10 kohms or higher C19-1 (HA2A) or C31-19 (HA2A) - Body ground Always 10 kohms or higher C19-3 (A2A+) or C30-7 (A2A+) - Body ground Always 10 kohms or higher C19-4 (A2A-) or C30-8 (A2A-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. REPLACE AIR FUEL RATIO SENSOR Replace the air fuel ratio sensor. Refer to «REMOVAL»(ref-524262-S00247626492013012800000) . NEXT: Go to next step
3. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . Start the engine. Allow the engine to idle for 5 minutes or more. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes / Pending. Read the pending DTCs. RESULT Result Proceed to No DTC is output A P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255 or P2256 is output B B --> See step 4 A --> END
4. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

Note. The Evaporative System Check (Automatic Mode) consists of 5 steps performed automatically by Techstream. It takes a maximum of the 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 engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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-524126-S41645429092013012800000) . HINT: If a permanent DTC is output, the system is malfunctioning. If no permanent DTC is output, the system is normal.

P2431 AND P2436

P2432, P2433, P2437 AND P2438

P2431 AND P2436

P2432 AND P2437

P2433 AND P2438

Note. This Air Injection Check only allows technicians to operate the secondary air injection system for a maximum of 5 seconds. Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks. While secondary air injection system operation using the Techstream is prohibited, the Techstream display indicates the prohibition (WAIT or ERROR). If ERROR is displayed on the Techstream during the test, stop the engine for 10 minutes, and then try again. Performing Air Injection Check repeatedly may cause damage to the secondary air injection system. If it is necessary to repeat the check, leave an interval of several minutes between System Check operations to prevent the system from overheating. When performing the Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the engine switch turned on (IG) or the engine running. Turn the engine switch off when the Air Injection Check operation finishes.

1. Start the engine and warm it up.
2. Turn the engine switch off.
3. Connect the Techstream to the DLC3.
4. Turn the engine switch on (IG).
5. Turn the Techstream on.
6. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) .
7. Turn the engine switch off and wait for at least 30 seconds.
8. Turn the engine switch on (IG) and turn the Techstream on.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / Air injection check / Automatic Mode.
10. Start the engine after the Techstream initialization is finished.
11. Perform the System Check operation by pressing ENTER (Next).
12. Perform the following to confirm the secondary air injection system pending codes: Press ENTER (Exit).
13. Check for pending DTCs. OK No pending DTC is output.
14. After "Air injection check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Input the DTC: P2431, P2432, P2433, P2436, P2437 or P2438.
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-524126-S41645429092013012800000) . HINT: If no permanent DTC is output, the system is normal. If a permanent DTC is output, the system is malfunctioning.
18. Turn the engine switch off.

Scheme 130

ALL

P2440, P2442 AIR SWITCHING VALVE IS STUCK OPEN (CASE 2)

P2440 AIR SWITCHING VALVE IS STUCK OPEN (CASE 1)

P2442 AIR SWITCHING VALVE IS STUCK OPEN (CASE 1)

P2440, P2442 AIR SWITCHING VALVE IS STUCK OPEN (CASE 2)

P2441 AIR SWITCHING VALVE IS STUCK CLOSED

P2443 AIR SWITCHING VALVE IS STUCK CLOSED

SECONDARY AIR INJECTION ON (CONDITION 1)

SECONDARY AIR INJECTION ON (CONDITION 2)

SECONDARY AIR INJECTION ON (CONDITION 3)

SECONDARY AIR INJECTION ON (CONDITION 4)

SECONDARY AIR INJECTION OFF (CONDITION 1)

SECONDARY AIR INJECTION OFF (CONDITION 2)

SECONDARY AIR INJECTION OFF (CONDITION 3)

SECONDARY AIR INJECTION OFF (CONDITION 4)

HINT

Refer to "Data List / Active Test" [Air Pump Pressure (Absolute), Air Pump2 Pressure (Absolute) and Air Pump Pulsation Pressure]. Refer to DATA LIST / ACTIVE TEST .

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

Note. This Air Injection Check only allows technicians to operate the secondary air injection system for a maximum of 5 seconds. Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks. While secondary air injection system operation using the Techstream is prohibited, the Techstream display indicates the prohibition (WAIT or ERROR). If ERROR is displayed on the Techstream during the test, stop the engine for 10 minutes, and then try again. Performing Air Injection Check repeatedly may cause damage to the secondary air injection system. If it is necessary to repeat the check, leave an interval of several minutes between System Check operations to prevent the system from overheating. When performing the Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the engine switch turned on (IG) or the engine running. Turn the engine switch off when the Air Injection Check operation finishes.

1. Start the engine and warm it up.
2. Turn the engine switch off.
3. Connect the Techstream to the DLC3.
4. Turn the engine switch on (IG).
5. Turn the Techstream on.
6. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) .
7. Turn the engine switch off and wait for at least 30 seconds.
8. Turn the engine switch on (IG) and turn the Techstream on.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / Air injection check / Automatic Mode.
10. Start the engine after the Techstream initialization is finished.
11. Perform the System Check operation by pressing ENTER (Next).
12. Perform the following to confirm the secondary air injection system pending codes: Press ENTER (Exit).
13. Check for pending DTCs. OK No pending DTC is output.
14. After "Air injection check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Input the DTC: P2440, P2441, P2442 or P2443.
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-524126-S41645429092013012800000) . HINT: If no permanent DTC is output, the system is normal. If a permanent DTC is output, the system is malfunctioning.
18. Turn the engine switch off.

ALL

P2445, P2447 SECONDARY AIR INJECTION INSUFFICIENT

P2445 AIR PRESSURE SENSOR STUCK

P2444 AIR PUMP IS STUCK ON

P2445, P2447 AIR PUMP IS STUCK OFF

P2445, P2447 SECONDARY AIR INJECTION INSUFFICIENT

P2445 AIR PRESSURE SENSOR STUCK

SECONDARY AIR INJECTION ON (CONDITION 1)

SECONDARY AIR INJECTION ON (CONDITION 2)

SECONDARY AIR INJECTION ON (CONDITION 3)

SECONDARY AIR INJECTION ON (CONDITION 4)

SECONDARY AIR INJECTION OFF (CONDITION 1)

SECONDARY AIR INJECTION OFF (CONDITION 2)

SECONDARY AIR INJECTION OFF (CONDITION 3)

SECONDARY AIR INJECTION OFF (CONDITION 4)

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

Note. This Air Injection Check only allows technicians to operate the secondary air injection system for a maximum of 5 seconds. Furthermore, the check can only be performed up to 4 times per trip. If the test is repeated, intervals of at least 30 seconds are required between checks. While secondary air injection system operation using the Techstream is prohibited, the Techstream display indicates the prohibition (WAIT or ERROR). If ERROR is displayed on the Techstream during the test, stop the engine for 10 minutes, and then try again. Performing Air Injection Check repeatedly may cause damage to the secondary air injection system. If it is necessary to repeat the check, leave an interval of several minutes between System Check operations to prevent the system from overheating. When performing the Air Injection Check operation after the battery cable has been reconnected, wait for 7 minutes with the engine switch turned on (IG) or the engine running. Turn the engine switch off when the Air Injection Check operation finishes.

1. Start the engine and warm it up.
2. Turn the engine switch off.
3. Connect the Techstream to the DLC3.
4. Turn the engine switch on (IG).
5. Turn the Techstream on.
6. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation). Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) .
7. Turn the engine switch off and wait for at least 30 seconds.
8. Turn the engine switch on (IG) and turn the Techstream on.
9. Enter the following menus: Powertrain / Engine and ECT / Utility / Air injection check / Automatic Mode.
10. Start the engine after the Techstream initialization is finished.
11. Perform the System Check operation by pressing ENTER (Next).
12. Perform the following to confirm the secondary air injection system pending codes: Press ENTER (Exit).
13. Check for pending DTCs. OK No pending DTC is output.
14. After "Air injection check" is completed, check for All Readiness by entering the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
15. Input the DTC: P2444, P2445 or P2447.
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-524126-S41645429092013012800000) . HINT: If no permanent DTC is output, the system is normal. If a permanent DTC is output, the system is malfunctioning.
18. Turn the engine switch off.

TIMER MALFUNCTION

TIMER START-UP MALFUNCTION (CASE 1)

TIMER START-UP MALFUNCTION (CASE 2)

TIMER MALFUNCTION

TIMER START-UP MALFUNCTION (CASE 1)

TIMER START-UP MALFUNCTION (CASE 2)

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG) and turn the Techstream on.
3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4. Turn the engine switch off and wait for at least 30 seconds.
5. Turn the engine switch on (IG) 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-524126-S41645429092013012800000) . 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-524262-S01887464392013012800000) . NEXT: Go to next step
2. CHECK WHETHER DTC OUTPUT RECURS Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . 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 output, the repair has been successfully completed. NEXT --> END

RELATED DTCS

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

Scheme 131

Note. If the reference pressure difference between the first and second checks is more than the specification, all the DTCs relating to the reference pressure (P043E, P043F, P2401, P2402 and P2419) are stored.

Scheme 132

TEXT IN ILLUSTRATION

Scheme 133

TEXT IN ILLUSTRATION

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 side of the canister exposed to the atmosphere.

While the engine is running, if a predetermined condition (closed-loop, etc.) is met, the purge VSV is opened by the ECM and stored fuel vapors 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. Air at 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 appropriate EVAP system operation.

Scheme 134

Scheme 135

Scheme 136

Scheme 137

1. Key-off monitor This monitor checks for EVAP (Evaporative Emission) system leaks and canister pump module malfunctions. The monitor starts 5 hours* after the engine switch is turned off. At least 5 hours are required for the fuel to cool down which stabilizes 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, and 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 engine 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 engine switch is turned off, the monitor check starts 2.5 hours later.
2. Purge flow monitor The purge flow monitor consists of 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 ON (closed) and the EVAP pressure is measured. If the variation in the pressure is less than 0.15 kPa-g (1.12 mmHg-g), the ECM interprets this as the purge VSV being stuck closed, illuminates the MIL and stores DTC P0441 (2 trip detection logic). Atmospheric pressure check: In order to ensure reliable malfunction detection, the variation between the atmospheric pressure before and after conduction of the purge flow monitor is measured by the ECM. TEXT IN ILLUSTRATION *1 Canister *2 to Intake Manifold *3 ECM *4 Soak Timer *5 Purge VSV (On) *6 Fuel Tank Cap Assembly *7 Canister Filter *8 Fuel Tank *9 Leak Detection Pump (Off) *10 Canister Pressure Sensor *11 Reference Orifice (0.02 Inches) *12 Vent Valve (Off) *13 Canister Pump Module - - *a EVAP Purge Flow - - 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 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 ratio (current flow time) (Open: ON; Closed: OFF). Roll-over valve Located in fuel tank. Valve closed 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 engine switch turned off. This allows fuel to cool down, stabilizing EVAP pressure. When approximately 5 hours have elapsed, ECM activates see scheme 3 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 vented. Negative pressure (vacuum) created in EVAP system to check for EVAP leaks by closing purge VSV, turning on vent valve (closed) and operating leak detection pump see scheme 1 (b) Canister pressure sensor Indicates pressure as voltages. ECM supplies regulated 5 V to canister pressure sensor and uses feedback from sensor to monitor EVAP system pressure see scheme 2 (c) Leak detection pump Creates negative pressure (vacuum) in EVAP system for leak check. (d) Reference orifice Opening with 0.02 inch diameter. Vacuum produced through orifice by closing purge VSV, turning off vent valve and operating leak detection pump to monitor reference pressure. Reference pressure used to detect small leak of EVAP. TEXT IN ILLUSTRATION *1 Airflow *2 Leak Detection Pump: Off *3 Condition: Purge Flow *4 Condition: Leak Check *5 Vent Valve: Off (Vent) *6 to Canister Filter (Atmosphere) *7 Canister *8 Reference Orifice (0.02 Inches) *9 Canister Pressure Sensor *10 Leak Detection Pump: On *11 Vent Valve: On (Closed) - - *a Canister Pump Module see scheme 1

Scheme 138

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 elevation is less than 2438 m (8000 ft.) 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 km/h [0 mph]) Monitor Conditions Allow the engine to idle for at least 5 minutes. Turn the engine switch off and wait for 6 hours (or 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 the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / Evaporative System. Check Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor is not complete. Make sure that the preconditions have been met, and then perform the operations listed under 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 and 35°C (40 and 95°F) The intake air temperature is between 4.4 and 35°C (40 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 a temperature higher than 75°C (167°F). Increase the engine speed to 3000 rpm once. Allow the engine to idle and turn the A/C on for 1 minute. Monitor Status Turn the engine switch off (if on (IG) or if the engine is running). Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor. Check Monitor Status displayed on the Techstream. HINT: If Incomplete is displayed, the monitor is not complete. Make sure that the preconditions have been met, and then perform the operations listed under Monitor Conditions again.

Refer to Checking Monitor Status. Refer to CHECKING MONITOR STATUS .

1. INSPECT FUEL INJECTOR ASSEMBLY (POWER SOURCE) Disconnect the fuel injector connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Cylinder Tester Connection Switch Condition Specified Condition No. 1 E1-2 - Ground Engine switch on (IG) 11 to 14 V No. 2 n1-2 - Ground Engine switch on (IG) 11 to 14 V No. 3 E2-2 - Ground Engine switch on (IG) 11 to 14 V No. 4 n2-2 - Ground Engine switch on (IG) 11 to 14 V No. 5 E3-2 - Ground Engine switch on (IG) 11 to 14 V No. 6 n3-2 - Ground Engine switch on (IG) 11 to 14 V No. 7 E4-2 - Ground Engine switch on (IG) 11 to 14 V No. 8 n4-2 - Ground Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION *a Front view of wire harness connector (to Fuel Injector Assembly) NG --> See step 4 OK: Go to next step
2. INSPECT FUEL INJECTOR ASSEMBLY Inspect the fuel injector assembly. Refer to «INSPECTION - Step 1»(ref-524269-S37380659192013012800000) . NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR - ECM) Disconnect the fuel injector connector. Disconnect the ECM connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Cylinder Tester Connection Condition Specified Condition No. 1 E1-1 - Body ground Always 10 kohms or higher E1-1 - C31-6 (#10) Always Below 1 ohms No. 2 n1-1 - Ground Always 10 kohms or higher n1-1 - C31-1 (#20) Always Below 1 ohms No. 3 E2-1 - Ground Always 10 kohms or higher E2-1 - C31-7 (#30) Always Below 1 ohms No. 4 n2-1 - Ground Always 10 kohms or higher n2-1 - C31-2 (#40) Always Below 1 ohms No. 5 E3-1 - Ground Always 10 kohms or higher E3-1 - C31-8 (#50) Always Below 1 ohms No. 6 n3-1 - Ground Always 10 kohms or higher n3-1 - C31-3 (#60) Always Below 1 ohms No. 7 E4-1 - Ground Always 10 kohms or higher E4-1 - C31-9 (#70) Always Below 1 ohms No. 8 n4-1 - Ground Always 10 kohms or higher n4-1 - C31-4 (#80) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
4. INSPECT NO. 1 INTEGRATION RELAY (IG2) Inspect the No. 1 integration relay (IG2). Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-524262-S35068267992013012800000) . NG --> See step 6 OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY - FUEL INJECTOR)
5. REPLACE FUEL INJECTOR ASSEMBLY. Refer to «REMOVAL»(ref-524269-S42378634592013012800000)
6. REPLACE NO. 1 INTEGRATION RELAY. Refer to «ON-VEHICLE INSPECTION - Step 2»(ref-524272-S42449560502013012800000)
7. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)

1. CHECK DTC OUTPUT Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Enter the following menus: System Select / Health Check. Check DTCs. RESULT Result Proceed to No DTC output A DTC output B B --> GO TO DTC CHART A: Go to next step
2. READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH AND ST1) Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine / Data List / Stop Light Switch and ST1. Check the Data List indication when the brake pedal is depressed and released. 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 Inspect and adjust the brake pedal. Refer to «ADJUSTMENT»(ref-524254-S42254035772013012800000) . 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 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 engine switch on (IG) and turn the Techstream on. Enter the following menus: Powertrain / Engine / 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-524126-S20424571482013012800000) . NG --> See step 8 OK: Go to next step
5. READ VALUE USING TECHSTREAM (VEHICLE SPEED) Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Start the engine. Enter the following menus: Powertrain / Engine / Data List / Vehicle Speed. Read the value displayed on the Techstream. Standard Techstream Display Condition Specified Condition Vehicle Speed Vehicle stopped, engine running 0 km/h (0 mph) Vehicle running at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) 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 engine switch on (IG) 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 km/h (0 mph) Vehicle running at constant speed between 16.1 to 64.4 km/h (10 to 40 mph) 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-524274-S36888352762013012800000)
8. REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY. Refer to «REMOVAL»(ref-524262-S17646998722013012800000)
9. REPAIR OR REPLACE BRAKE PEDAL. Refer to «REMOVAL»(ref-524254-S23672278392013012800000)
10. INSPECT STOP LIGHT SWITCH ASSEMBLY. Refer to «INSPECTION»(ref-524276-S05936812242013012800000)

1. 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
2. CHECK WHETHER MIL TURNS OFF Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes. Check if any DTCs have been stored. Note down any DTCs. Clear DTCs. Refer to «DTC CHECK / CLEAR»(ref-524126-S41645429092013012800000) . 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 ECM connector. Turn the engine switch on (IG). Check that the MIL is not illuminated. OK MIL is not illuminated. NG --> See step 4 OK --> See step 9
4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) Disconnect the ECM connector. Disconnect the combination meter connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G44-13 (W) or G3-31 (CHK) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 10
5. CHECK THAT MIL IS ILLUMINATED Check if the MIL is illuminated when the engine switch is turned on (IG). OK MIL is illuminated. NG --> See step 6 OK --> END
6. CHECK THAT ENGINE STARTS Turn the engine switch on (IG). 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 12 A: Go to next step
7. CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM) Disconnect the ECM connector. Disconnect the combination meter connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G44-13 (W) - G3-31 (CHK) Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
8. REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-524126-S26606347652013012800000)
9. REPLACE ECM. Refer to «REMOVAL»(ref-524262-S01887464392013012800000)
10. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-524277-S08139366202013012800000)
11. REPLACE COMBINATION METER ASSEMBLY. Refer to «REMOVAL»(ref-524277-S08139366202013012800000)
12. GO TO VC OUTPUT CIRCUIT. Refer to «VC Output Circuit»(ref-524264-S19706791772013012800000)