Nissan GT-R (R35) · Service Manual ENGINE

P1233, P2101 ELECTRIC THROTTLE CONTROL FUNCTION

VR38

P1233 P2101

Description


Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
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

NOTE：
 If DTC P1233 or P2101 is displayed with DTC P1238, P1290, first perform the trouble diagnosis for DTC P1238, P2119. Refer to DTC Logic (GT-R certified NISSAN dealer).
If DTC P1233 or P2101 is displayed with DTC P2100, P2119, first perform the trouble diagnosis for DTC P1290, P2100. Refer to DTC Logic (GT-R certified NISSAN dealer).

DTC No.
 		Trouble diagnosis name
 		DTC detecting condition
 		Possible cause
P1233
 		Electric throttle control performance (bank 2)
 		Electric throttle control function does not operate properly.
  • Harness or connectors
    (Throttle control motor circuit is open or shorted)
    (Throttle control motor relay circuit is open or shorted)
  • Electric throttle control actuator
  • Throttle control motor relay
P2101
 		Electric throttle control performance (bank 1)

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK GROUND CONNECTION
 
 2.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
 
 3.CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
 
 4.DETECT MALFUNCTIONING PART
 
 5.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
 
 6.DETECT MALFUNCTIONING PART
 
 7.CHECK FUSE
 
 8.CHECK INTERMITTENT INCIDENT
 
 9.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
 
 10.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
 
 11.CHECK THROTTLE CONTROL MOTOR
 
 12.CHECK INTERMITTENT INCIDENT
 
 13.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