Diagnostic Procedure

CHECK ECM POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check voltage between ECM terminal 121 and ground with CONSULT-II or tester.
  
  Fig 1: Checking Voltage Between ECM Terminal 121 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Voltage: Battery voltage
OK or NG
1. OK: GO TO 3.
2. NG: GO TO 2.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E10, F48
- Fuse and fusible link box connector E24
- 10A fuse
- Harness for open or short between ECM and battery
  Repair or replace harness or connectors.
CHECK INTERMITTENT INCIDENT
Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

OK or NG
1. OK: GO TO 4.
2. NG: Repair open circuit short to ground or short to power in harness or connectors.
PERFORM DTC CONFIRMATION PROCEDURE
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
REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM - NATS) ".
3. Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
4. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
5. Perform "IDLE AIR VOLUME LEARNING ".
1. INSPECTION END