Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK VALVE RESISTANCE
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
  Resistance: 5 - 20Ω
OK or NG
1. OK: GO TO 3.
2. NG: GO TO 2.
  
  Fig 1: Terminal 5 & Ground Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK VALVE OPERATION
1. Remove oil pan.
2. Check the following items:
  - Torque converter clutch solenoid valve
    - Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal and ground.
  - Harness of terminal cord assembly for short or open
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace damaged parts.
  
  Fig 2: Checking Solenoid Valve
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal cord assembly harness connector terminal 5 and TCM harness connector terminal 3. Refer to "WIRING DIAGRAM - AT - TCV ".
  Continuity should exist.
4. Reinstall any part removed.
OK or NG
1. OK: GO TO 4.
2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK DTC
Perform "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE ".

OK or NG
1. OK: INSPECTION END
2. NG: GO TO 5.
CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
1. OK: INSPECTION END
2. NG: Repair or replace damaged parts.