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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 66 (Transfer Case -- G37 Coupe) >> DTC/Circuit Diagnosis >> DTC C1205: AWD Actuator Relay >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK AWD SOLENOID CIRCUIT (1)
    1. Turn the ignition switch OFF.
    2. Disconnect AWD control unit harness connector.
    3. Check the continuity between AWD control unit harness connector and the ground.
    TERMINALS CONTINUITY REFERENCE CHART

    AWD control unit - Continuity
    Connector Terminal
    F108 1 Ground Not existed
    2

    Is the inspection result normal? 

    YES: Go to 2.

    NO: Go to  3.

  2. CHECK TERMINALS AND HARNESS CONNECTORS
    1. Check AWD control unit pin terminals for damage or loose connection with harness connector.
    2. Check AWD solenoid pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal? 

    YES: After connecting each harness connector, perform DTC confirmation procedure again. When DTC "C1205" is detected, replace AWD control unit. Refer to "EXPLODED VIEW ".

    NO: Repair or replace damaged parts.

  3. CHECK AWD SOLENOID
    1. Disconnect AWD solenoid harness connector.
    2. Check the continuity between AWD solenoid harness connector and the ground.
    TERMINALS CONTINUITY REFERENCE CHART

    AWD solenoid - Continuity
    Terminal
    1 Ground Not existed
    2

    Is the inspection result normal? 

    YES: Go to 4.

    NO: Replace electric controlled coupling. Refer to "EXPLODED VIEW ".

  4. CHECK AWD SOLENOID CIRCUIT

    Check the continuity between AWD control unit harness connector and the ground.

    TERMINALS CONTINUITY REFERENCE CHART

    AWD control unit - Continuity
    Connector Terminal
    F108 1 Ground Not existed
    2

    Is the inspection result normal? 

    YES: Go to 5.

    NO: Repair or replace damaged parts.

  5. CHECK TERMINALS AND HARNESS CONNECTORS
    1. Check AWD control unit pin terminals for damage or loose connection with harness connector.
    2. Check AWD solenoid pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal? 

    YES: After connecting each harness connector, perform DTC confirmation procedure again. When DTC "C1205" is detected, Go to  1.

    NO: Repair or replace damaged parts.

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