Diagnostic Procedure

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check voltage between ECM terminal 121 and ground with CONSULT-II or tester.
   1. Voltage: Battery voltage 

   OK or NG 

   1. OK >> GO TO  3.
   2. NG >> GO TO  2.
   Fig 1: Check ECM Power Supply

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

Check the following.

• IPDM E/R connector E121
• 20A fuse
• Harness for open or short between ECM and battery
  1. >> Repair or replace harness or connectors.

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

OK or NG 

1. OK >> GO TO  4.
2. NG >> Repair or replace harness or connectors.

With CONSULT-II 

1. Turn ignition switch ON.
2. Select "SELF DIAG RESULTS" mode with CONSULT-II.
3. Touch "ERASE".
4. Perform DTC Confirmation Procedure. 

   See DTC Confirmation Procedure  .

5. Is the 1st trip DTC P1065 displayed again?

With GST 

1. Turn ignition switch ON.
2. Select MODE 4 with GST.
3. Touch "ERASE".
4. Perform DTC Confirmation Procedure. 

   See DTC Confirmation Procedure  .

5. Is the 1st trip DTC P1065 displayed again?

   Yes or No

   1. Yes >> GO TO  5.
   2. No >>INSPECTION END 

1. Replace ECM.
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to ECM RE-COMMUNICATING FUNCTION .
3. Perform Accelerator Pedal Released Position Learning  .
4. Perform Throttle Valve Closed Position Learning  .
5. Perform Idle Air Volume Learning  .
   1. >> INSPECTION END