Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to REMOVAL .
  - Shift solenoid valve A
2. Check resistance between terminal cord assembly F30 terminal 2 and ground.
  
  Fig 1: Checking Resistance Between Terminal Cord Assembly F30 Terminal 2 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 2.
2. NG: Repair or replace shift solenoid valve assembly.
CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to REMOVAL .
  - Shift solenoid valve A
2. Check solenoid valve by listening for its operating sound while applying battery voltage and ground of the solenoid.
  
  Fig 2: Checking Valve Operation
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace shift solenoid valve assembly.
CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to DISASSEMBLY .
2. Check to ensure that:
  - Valve, sleeve and plug slide along valve bore under their own weight.
  - Valve, sleeve and plug are free from burrs, dents and scratches.
  - Control valve springs are free from damage, deformation and fatigue.
  - Hydraulic line is free from obstacles.
  Fig 3: Checking Control Valve
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 4.
2. NG: Repair control valve assembly.
CHECK DTC
Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE .

OK or NG
1. OK: INSPECTION END
2. NG: Check control valve again. Repair or replace control valve assembly.