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 SHIFT SOLENOID VALVE
1. Remove control valve assembly. Refer to REMOVAL .
2. Check shift solenoid valve operation.
  
  Fig 1: Checking Shift Solenoid Valve Operation (Solenoid Valve - B)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - Shift solenoid valve B
    Refer to COMPONENT INSPECTION .
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 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.
OK or NG
1. OK: GO TO 3.
2. NG: Repair control valve assembly.
  
  Fig 2: Checking Control Valve
  Courtesy of NISSAN MOTOR CO., U.S.A.
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.