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Home >> Infiniti >> 2011 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transfer Case (ATX90A)) >> DTC/Circuit Diagnosis >> DTC P1830: Abs Operation Signal >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

    With CONSULT-III 

    Perform self-diagnosis for "ABS".

    Is any DTCs detected? 

    YES: Check the DTCs.

    NO: GO TO 2.

  2. ERASE SELF-DIAGNOSTIC RESULT

    With CONSULT-III 

    1. Erase self-diagnostic results for "ALL MODE AWD/4WD".
    2. Start the engine and drive vehicle at 30 km/h (19 MPH) or more.
    3. Check that ABS warning lamp turns OFF.

      Does ABS warning lamp turn OFF? 

      YES: GO TO 3.

      NO: Refer to "DIAGNOSIS PROCEDURE ".

  3. CHECK TERMINALS AND HARNESS CONNECTORS

    Check transfer control unit pin terminals for damage or loose connection with harness connector.

    Is inspection result normal? 

    YES: After turning the ignition switch OFF, perform DTC confirmation procedure again. When DTC "P1830" is detected, Replace transfer control unit. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace error-detected parts.

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