Diagnostic Procedure

1. Turn ignition switch OFF.
2. 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: Checking ECM Power Supply

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

Check the following.

• Harness connectors E11, F2
• 15A 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 Service $04 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 IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to ECM RE-COMMUNICATING FUNCTION .
3. Perform VIN Registration .
4. Perform Accelerator Pedal Released Position Learning .
5. Perform Throttle Valve Closed Position Learning .
6. Perform Idle Air Volume Learning .
   1. INSPECTION END