Nissan GT-R (R35) · Service Manual TRANSMISSION & DRIVELINE

P2731 LINE PRESSURE SOLENOID VALVE

TRANSMISSION: GR6Z30A

P2731

Description


  • The line pressure solenoid valve is installed on the front control module and controls the line pressure based on the signal from TCM. This subsequently controls the lubricating flow.
  • The line pressure solenoid valve is a N/H type (normal high) in which control oil pressure is built up when no current flows through the coil.

DTC Logic

 
 DTC DETECTION LOGIC

NOTE：
 If DTC P0700 is displayed, perform the diagnosis of DTC P0700 first. Refer to DTC Logic (GT-R certified NISSAN dealer).

DTC
 		Self-diagnosis name
 		DTC detection condition
 		Possible causes
P2731
 		Line pressure solenoid valve system current
 		A DTC is set if the line pressure solenoid valve monitor current value is less than 0.2 A when the line pressure solenoid valve target current value is more than 0.38 A.
  • Line pressure solenoid valve
  • Harness or connector
    (Open or short in the line pressure solenoid valve circuit)

 
 DTC CONFIRMATION PROCEDURE

■ CAUTION ■
 Be careful of the driving speed.
 
 1.PREPARATION BEFORE OPERATION (PART 1)
 
 2.PREPARATION BEFORE OPERATION (PART 2)
 
 3.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK GROUND CONNECTION
 
 2.CHECK LINE PRESSURE SOLENOID VALVE CIRCUIT (PART 1)
 
 3.CHECK LINE PRESSURE SOLENOID VALVE CIRCUIT (PART 2)
 
 4.CHECK LINE PRESSURE SOLENOID VALVE
 
 5.CHECK HARNESS BETWEEN TCM AND TRANSMISSION (LINE PRESSURE SOLENOID VALVE) (PART 1)
 
 6.CHECK HARNESS BETWEEN TCM AND TRANSMISSION (LINE PRESSURE SOLENOID VALVE) (PART 2)
 
 7.CHECK INTERMITTENT INCIDENT

Component Inspection (Line Pressure Solenoid Valve)


 
 1.CHECK LINE PRESSURE SOLENOID VALVE (PART 1)
 
 2.CHECK LINE PRESSURE SOLENOID VALVE (PART 2)