LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (2 Of 3)) >> DTC/Circuit Diagnosis >> DTC P0603, P062F: ECM >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

  1. INSPECTION START

    Check that the battery negative terminal is not disconnected during ignition switch ON.

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 2  .

  2. ERASE DTC

    1. Start the engine and let it idle at least 10 seconds.
    2. Turn ignition switch OFF.
    3. Repeat steps 1 and 2 for 4 times.
    4. Erase DTC.
    5. Turn ignition switch OFF and wait at least 10 seconds.
    6. Start the engine and let it idle for 10 seconds.
    7. Check 1st trip DTC.

    Is DTC P062F detected again?

    YES 

    Replace ECM. Refer to REMOVAL AND INSTALLATION .

    NO 

    INSPECTION END

  3. CHECK ECM POWER SUPPLY AND GROUND CIRCUIT

    Check ECM power supply and ground circuit. Refer to DIAGNOSIS PROCEDURE .

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace error-detected parts.

  4. CHECK INTERMITTENT INCIDENT

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace error-detected parts.

  5. PERFORM DTC CONFIRMATION PROCEDURE

    1. Turn ignition switch ON.
    2. Erase DTC.
    3. Perform DTC confirmation procedure. Refer to DTC LOGIC .

    Is the DTC P0603 or P062F detected again?

    YES 

    Replace ECM. Refer to REMOVAL AND INSTALLATION .

    NO 

    INSPECTION END

scientia non olet · About LEMON Manuals