Diagnostic Procedure

1. Turn ignition switch OFF.
2. Check voltage between ECM terminal 104 and ground with CONSULT-II or tester.
   1. Voltage: Battery voltage 

   OK or NG 

   1. OK >> GO TO  4.
   2. NG >> GO TO  2.
   Fig 1: Check Throttle Control Motor Relay Power Supply Circuit-I

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

1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E122.
3. Check continuity between ECM terminal 104 and IPDM E/R terminal 47.

   Refer to Wiring Diagram.

   1. Continuity should exist. 
4. Also 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.

1. Disconnect 20A fuse
2. Check 20A fuse for blown.

   OK or NG 

   1. OK >> GO TO  7.
   2. NG >> Replace 20A fuse.

1. Check voltage between ECM terminal 3 and ground under the following conditions with CONSULT-II or tester.
   Fig 2: Check Throttle Control Motor Relay Input Signal Circuit-I (1 Of 2)

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 3: Check Throttle Control Motor Relay Input Signal Circuit-I (1 Of 2)

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

   OK or NG 

   1. OK >> GO TO  7.
   2. NG >> GO TO  5.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect IPDM E/R harness connector E119.
4. Check continuity between ECM terminal 3 and IPDM E/R terminal 6.

   Refer to Wiring Diagram.

   1. Continuity should exist. 
5. Also check harness for short to ground and short to power.

   OK or NG 

   1. OK >> GO TO  7.
   2. NG >> GO TO  6.

Check the following.

• Harness connectors E2, F32
• Harness for open or short between ECM and IPDM E/R
  1. >> Repair open circuit or short to ground or short to power in harness or connectors.

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

OK or NG 

1. OK >> Replace IPDM E/R. Refer to IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE/ENGINE ROOM .
2. NG >> Repair or replace harness or connectors.