Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to "CONSULT FUNCTION (TRANSMISSION) ", "DIAGNOSIS PROCEDURE WITHOUT CONSULT ".

Is a malfunction in the CAN communication indicated in the results?

YES: Check CAN communication line. Refer to "DIAGNOSIS PROCEDURE ".

NO: GO TO 2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to "DIAGNOSIS PROCEDURE ".

OK or NG

OK: GO TO 3.

NG: Repair or replace damaged parts.
DETECT MALFUNCTION ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG

OK: GO TO 4.

NG: Repair or replace damaged parts.
REPLACE CONTROL VALVE WITH TCM
1. Replace control valve with TCM. Refer to "REMOVAL AND INSTALLATION ".
2. Perform "DTC CONFIRMATION PROCEDURE ".
  OK or NG
  
  OK: INSPECTION END
  
  NG: Confirm malfunction phenomena by "ROAD TEST" to repair malfunctioning part. Refer to "CHECK BEFORE ENGINE IS STARTED ".