Diagnostic Procedure

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect throttle control motor relay harness connector.
  
  Fig 1: Disconnecting Throttle Control Motor Relay
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between throttle control motor relay terminal 2, 5 and ground with CONSULT-II or tester.
  
  Fig 2: Checking Voltage Between Throttle Control Motor Relay Terminal 2, 5 & 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 E23
- 15A fuse
- Harness for open or short between throttle control motor relay and battery
- Repair or replace harness or connectors.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check continuity between ECM terminal 3 and throttle control motor relay terminal 3. Refer to WIRING DIAGRAM .
  Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
1. OK: GO TO 4.
2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK THROTTLE CONTROL MOTOR RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check continuity between ECM terminal 104 and throttle control motor relay terminal 1. Refer to WIRING DIAGRAM .
  Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
1. OK: GO TO 5.
2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK THROTTLE CONTROL MOTOR RELAY
Refer to "COMPONENT INSPECTION ".

OK or NG
1. OK: GO TO 6.
2. NG: Replace throttle control motor relay.
CHECK INTERMITTENT INCIDENT
Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".
1. INSPECTION END