Diagnostic Procedure

WARNING: This page is about a different car, the 2004 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
  - Shift solenoid valve B
2. Check resistance between terminal cord assembly F30 terminals 1 and 2, and ground.
Fig 1: Checking Valve Resistance
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
2. NG: Repair or replace damaged parts.
CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to "REMOVAL ".
  - Shift solenoid valve A
  - Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while applying battery voltage and ground to 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.
OK or NG
1. OK: GO TO 4.
2. NG: Repair control valve assembly.
Fig 3: 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 transaxle internal components (clutch, brake, etc.).