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Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 terminals and ground.
      Fig 1: Voltage Chart
      G00770295Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 2: Checking Voltage Between AWD Control Unit Harness Connector Terminals And Ground
      G00770296Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Turn ignition switch "OFF".
    6. Check voltage between AWD control unit harness connector terminals and ground.
      Fig 3: Voltage Chart
      G00770297Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 4: Checking Voltage Between AWD Control Unit Harness Connector Terminals And Ground
      G00770298Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Check the following. If any items are damaged, repair or replace damaged parts.
      • 10A fuse [No. 37, located in the fuse and fusible link block or No. 82, located in the IPDM E/R]
      • Harness for short or open between battery and AWD control unit harness connector terminal 9
      • Harness for short or open between ignition switch and AWD control unit harness connector terminal 7
      • Ignition switch. Refer to POWER DISTRIBUTION .
  2. CHECK GROUND CIRCUIT 
    1. Turn ignition switch "OFF".
    2. Disconnect AWD control unit harness connector.
    3. Check continuity between AWD control unit harness connector E111 terminals 10 (B), 11 (B) and ground.

      Continuity should exist. 

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

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
      Fig 5: Checking Continuity Between AWD Control Unit Harness Connector E111 Terminals 10, 11 And Ground
      G00770299Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK DTC 

    Start engine.

    Does AWD warning lamp turn OFF? 

    1. YES: INSPECTION END 
    2. NO: Perform the self-diagnosis, repair or replace damaged parts. Refer to "SELF-DIAG RESULT MODE ".
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