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Home >> Infiniti >> 2006 >> M35 Base >> Repair and Diagnosis >> Transmission >> Transfer Case >> Trouble Diagnosis For System >> AWD Solenoid >> Diagnostic Procedure >> Notes

Diagnostic Procedure: Notes

  1. CHECK AWD SOLENOID SIGNAL 

    With CONSULT-II 

    1. Start engine.
    2. Select "DATA MONITOR" mode for "ALL MODE AWD/4WD" with CONSULT-II.
    3. Read out the value of "ETS SOLENOID".
    CONDITION DISPLAY VALUE CHART

    Condition Display value
    Engine running At idle speed Approx. 0.000A
    When depressing accelerator pedal Approx. 0.000 - 0.500A(1)
    (1) The values are changed by throttle opening and engine speed.
    Fig 1: CONSULT-II Display Screen - Data Monitor
    G04144504Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 6.

    NG: GO TO 2.

  2. CHECK POWER SUPPLY 
    1. Turn ignition switch "OFF".
    2. Disconnect AWD control unit harness connector.
    3. Turn ignition switch "ON". (Do not start engine.)
    4. Check voltage between AWD control unit harness connector terminal9 and ground.
    CONNECTOR TERMINAL VOLTAGE CHART

    Connector Terminal Voltage (Approx.)
    F109 9 - Ground Battery voltage
    Fig 2: Checking Voltage Between AWD Control Unit Harness Connector Terminal And Ground
    G04144505Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG: Check the following. If any items are damaged, repair or replace damaged parts.

    • 10A fuse [No. 33, located in the fuse block (J/B)]
    • Harness for short or open between battery and AWD control unit harness connector terminal 9
  3. CHECK AWD SOLENOID CIRCUIT 
    1. Turn ignition switch "OFF".
    2. Disconnect AWD control unit harness connector.
    3. Check resistance between AWD control unit harness connector terminals 1 and 2.
    CONNECTOR TERMINAL RESISTANCE CHART

    Connector Terminal Resistance (Approx.)
    F109 1 - 2 (Ground) 2.45 Ω
    Fig 3: Checking Resistance Between AWD Control Unit Harness Connector Terminals
    G04144506Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 6.

    NG: GO TO 4.

  4. CHECK AWD SOLENOID 
    1. Turn ignition switch "OFF".
    2. Disconnect transfer assembly harness connector.
    3. Check resistance between transfer assembly harness connector F43 terminals 1 and 2.

    1 - 2 : Approx. 2.45Ω 

    Fig 4: Checking Resistance Between Transfer Assembly Harness Connector Terminals
    G04144507Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 5.

    NG: AWD solenoid is malfunctioning. Replace electric controlled coupling. Refer to , "DISASSEMBLY AND ASSEMBLY ".

  5. CHECK HARNESS BETWEEN AWD CONTROL UNIT AND AWD SOLENOID 
    1. Turn ignition switch "OFF".
    2. Disconnect AWD control unit harness connector and transfer assembly harness connector.
    3. Check continuity between the following terminals.
    • AWD control unit harness connector F109 terminal 1 and transfer assembly harness connector F43 terminal 1.
    • AWD control unit harness connector F109 terminal 2 and transfer assembly harness connector F43 terminal 2.
    Fig 5: Checking Continuity Between Terminals
    G04144508Courtesy of NISSAN MOTOR CO., U.S.A.

    1 - 1: Continuity should exist. 

    2 - 2: Continuity should exist. 

    Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO 6.

    NG: Repair or replace damaged parts.

  6. CHECK AWD CONTROL UNIT 

    Check AWD control unit input/output signal. Refer to , "AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES ".

    OK or NG 

    OK: GO TO 7.

    NG: Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.

  7. CHECK DTCM 

    Perform the self-diagnosis, after driving a vehicle for a while.

    OK or NG 

    OK: INSPECTION END 

    NG: Replace AWD control unit.

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