Diagnostic Procedure

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: Checking AWD Control Unit Harness Connector With Ignition On

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Displaying AWD Control Unit Harness Connector Specifications With Ignition On

   Courtesy 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: Checking AWD Control Unit Harness Connector With Ignition Off

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 4: Displaying AWD Control Unit Harness Connector Specifications With Ignition Off

   Courtesy 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. 12 or 21, located in the fuse block (J/B)]
   • 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 the following:
     1. For FX35 models, see POWER DISTRIBUTION .
     2. For FX45 models, see POWER DISTRIBUTION .
     .

1. Turn ignition switch "OFF".
2. Disconnect AWD control unit harness connector.
3. Check continuity between AWD control unit harness connector M92 terminals 10 (B), 11 (B) and ground.
   1. Continuity should exist. 

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

   Fig 5: Checking Continuity Between Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.

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.

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 .