Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SHIFT SOLENOID VALVE
1. Refer to CONTROL VALVE ASSEMBLY AND ACCUMULATORS .
2. Check shift solenoid valve operation.
  - Shift solenoid valve A
    Refer to "Component Inspection ".
    
    Fig 1: Checking Shift Solenoid Valve Operation
    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 CONTROL VALVE
1. Disassemble control valve assembly.
  Refer to "Control Valve Assembly ".
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 2: Checking Control Valve
    Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
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.