Diagnostic Procedure

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Check voltage between ECM terminal 104 and ground with CONSULT-II or tester.
  Voltage: Battery voltage
OK or NG
- OK: GO TO 5.
- NG: GO TO 2.
  
  Fig 1: Checking Voltage Between ECM Terminal 104 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E121.
3. Check continuity between ECM terminal 104 and IPDM E/R terminal 47.
  Refer to WIRING DIAGRAM .
  
  Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
- OK: GO TO 4.
- NG: GO TO 3.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E131, M92
- Harness for open or short between ECM and IPDM E/R
- : Repair open circuit or short to ground or short to power in harness or connectors.
CHECK FUSE
1. Disconnect 15A fuse.
2. Check 15A fuse for blown.
OK or NG
- OK: GO TO 8.
- NG: Replace 15A fuse.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I

Check voltage between ECM terminal 3 and ground under the following conditions with CONSULT-II or tester.

IGNITION SWITCH CONDITION - VOLTAGE

Ignition switch	Voltage
OFF	Approximately 0V
ON	Battery voltage

OK or NG

OK: GO TO 8.
NG: GO TO 6.

Fig 2: Checking Voltage Between ECM Terminal & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.