Symptom:

O/D OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to ON   .

Fig 1: O/D Off Indicator Lamp Operation Diagram

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

1. CHECK TCM POWER SOURCE 
   1. Turn ignition switch to ON position.

      (Do not start engine.)

   2. Check voltage between TCM terminals 10, 19, 28 and ground.
      Fig 2: Checking Transmission Control Module Power Source

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

      Voltage: Battery voltage 

   3. Turn ignition switch to OFF position.
   4. Check voltage between TCM terminal 28 and ground.

      Voltage: Battery voltage 

   OK or NG 

   1. OK: GO TO 2.
   2. NG: Check the following items:
      • Harness for short or open between ignition switch and TCM (Main harness) Refer to WIRING DIAGRAM - AT - MAIN .
      • Ignition switch and fuse. Refer to POWER DISTRIBUTION .

2. CHECK TCM GROUND CIRCUIT 
   1. Turn ignition switch to OFF position.
   2. Disconnect TCM harness connector.
   3. Check continuity between TCM terminals 25, 48 and ground.
      Fig 3: Checking Transmission Control Module Ground Circuit

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

      Continuity should exist  .

      If OK, 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. Refer to WIRING DIAGRAM-AT-MAIN .

3. CHECK LAMP CIRCUIT 
   1. Turn ignition switch to OFF position.
   2. Check resistance between TCM terminals 13 and 10.
      Fig 4: Checking Lamp Circuit

      Courtesy of NISSAN MOTOR CO., U.S.A.
   3. Reinstall any part removed.

   OK or NG 

   1. OK: GO TO 4.
   2. NG: Check the following items:
      • O/D OFF indicator lamp.

        Refer to WARNING LAMPS in WARNING SYSTEMS .

      • Harness and fuse for short or open between ignition switch and O/D OFF indicator lamp (Main harness)

        Refer to POWER DISTRIBUTION .

      • Harness for short or open between O/D OFF indicator lamp and TCM.

4. CHECK SYMPTOM 

   Check again.

   OK or NG 

   1. OK: INSPECTION END 
   2. NG:
      1. Perform TCM input/output signal inspection.
      2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.