Nissan GT-R (R35) · Service Manual ENGINE

P1236, P2118 THROTTLE CONTROL MOTOR

VR38

P1236 P2118

Description


The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

DTC Logic

 
 DTC DETECTION LOGIC

DTC No.
 		Trouble diagnosis name
 		DTC detecting condition
 		Possible cause
P1236
 		Throttle control motor (bank 2) circuit short
 		ECM detects short in both circuits between ECM and throttle control motor.
  • Harness or connectors
    (Throttle control motor circuit is shorted.)
  • Electric throttle control actuator
    (Throttle control motor)
P2118
 		Throttle control motor (bank 1) circuit short

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK GROUND CONNECTION
 
 2.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
 
 3.CHECK THROTTLE CONTROL MOTOR
 
 4.CHECK INTERMITTENT INCIDENT
 
 5.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Component Inspection


 
 1.CHECK THROTTLE CONTROL MOTOR
 
 2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Special Repair Requirement


 
 1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
 
 2.PERFORM IDLE AIR VOLUME LEARNING