Nissan Rogue Service Manual: P2118 throttle control motor

Nissan Rogue Service Manual / Engine / Engine Control System / DTC/Circuit diagnosis / P2118 throttle control motor

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detecting condition
P2118	ETC MOT-B1 (Throttle actuator control motor current range/performance)	ECM detects short in both circuits between ECM and throttle control motor.

POSSIBLE CAUSE

Harness or connectors (Throttle control motor circuit is shorted.)
Electric throttle control actuator (Throttle control motor)

FAIL-SAFE

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx.

5 degrees) by the return spring.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

Turn ignition switch ON and wait at least 2 seconds.
Start engine and let it idle for 5 seconds.
Check DTC.

Is DTC detected? YES >> Proceed to EC-436, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect electric throttle control actuator harness connector.
Disconnect ECM harness connector.
Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

Check throttle control motor output signal circuit

Also check harness for short to ground and to power.

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace error-detected parts.

2.CHECK THROTTLE CONTROL MOTOR

Check the throttle control motor. Refer to EC-437, "Component Inspection".

Is the inspection result normal? YES >> GO TO 3.

NO >> Replace electric throttle control actuator. Refer to EM-26, "Removal and Installation".

3.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

>> INSPECTION END

Component Inspection

1.CHECK THROTTLE CONTROL MOTOR

Turn ignition switch OFF.
Disconnect electric throttle control actuator harness connector.
Check the resistance between electric throttle control actuator terminals as per the following.

Check throttle control motor

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace electric throttle control actuator. Refer to EM-26, "Removal and Installation".

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