Diagnosis Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.

Refer to "GROUND INSPECTION ".

Fig 1: Identifying Body Ground (E9 And E15) And Washer Tank With Fuse And Fusible Link Box

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG 

OK: GO TO 2.

NG: Repair or replace ground connections.

1. Disconnect electric throttle control actuator harness connector (1).
   • ←: Vehicle front
2. Turn ignition switch ON.
   Fig 2: Identifying Electric Throttle Control Actuator Harness Connector

   Courtesy of NISSAN NORTH AMERICA, INC.
3. Check voltage between electric throttle control actuator terminal 1 and ground with CONSULT or tester.

Voltage: Approximately 5 V 

Fig 3: Checking Throttle Position Sensor Power Supply Circuit

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG 

OK: GO TO 3.

NG: Repair open circuit or short to ground or short to power in harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 36. 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: Repair open circuit or short to ground or short to power in harness or connectors.

1. Check harness continuity between the following;

   electric throttle control actuator terminal 2 and ECM terminal 37,

   electric throttle control actuator terminal 3 and ECM terminal 38.

   Refer to Wiring Diagram .

   Continuity should exist  .

2. Also check harness for short to ground and short to power.

OK or NG 

OK: GO TO 5.

NG: Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO  7.

NG: GO TO 6.

Replace the electric throttle control actuator. Refer to , "REMOVAL AND INSTALLATION ".

INSPECTION END 

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

INSPECTION END