Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.
Refer to "GROUND INSPECTION ".

Fig 1: Checking Ground Connections
Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG

OK: GO TO 2.

NG: Repair or replace ground connections.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

Disconnect electric throttle control actuator harness connector.
Disconnect ECM harness connector.

Check harness continuity between the following terminals.

Refer to WIRING DIAGRAM .

Electric throttle control actuator terminal	ECM terminal	Continuity
5	5	Should not exist
5	4	Should exist
6	5	Should exist
6	4	Should not exist

Fig 2: Identifying Electric Throttle Control Actuator And Position Sensor With Motor Harness Connector

Courtesy of NISSAN NORTH AMERICA, INC.

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

OK or NG

OK: GO TO 3.

NG: Repair or replace malfunctioning part.

CHECK THROTTLE CONTROL MOTOR
Refer to "COMPONENT INSPECTION ".

OK or NG

OK: GO TO 4.

NG: GO TO 5.
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

OK or NG

OK: GO TO 5.

NG: Repair or replace harness or connectors.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator. Refer to INTAKE MANIFOLD .
2. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
3. Perform "IDLE AIR VOLUME LEARNING ".
>> INSPECTION END