Nissan GT-R (R35) · Service Manual ENGINE

P004A, P004C, P004D TC BOOST CONTROL SOLENOID VALVE

VR38

P004A P004C P004D

Description


The turbocharger boost control solenoid valve is ON/OFF duty controlled by the ECM output signals and adjusts the pressure in the diaphragm of the boost control actuator. The longer the turbocharger boost control solenoid valve is ON, the higher the boost is increased.

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DTC Logic

 
 DTC DETECTION LOGIC

DTC No.
 		Trouble diagnosis name
 		DTC detecting condition
 		Possible cause
P004A
 		Turbocharger boost control solenoid valve circuit open
 		ECM detected the turbocharger boost control solenoid valve circuit is open.
  • Harness or connectors
    (Turbocharger boost control solenoid valve circuit is open or shorted.)
  • Turbocharger boost control solenoid valve
P004C
 		Turbocharger boost control solenoid valve circuit low input
 		ECM detected the turbocharger boost control solenoid valve circuit is short to ground.
P004D
 		Turbocharger boost control solenoid valve circuit high input
 		ECM detected the turbocharger boost control solenoid valve circuit is short to power.

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
 
 2.DETECT MALFUNCTIONING PART
 
 3.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
 
 4.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE
 
 5.CHECK INTERMITTENT INCIDENT

Component Inspection


 
 1.CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE