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 INPUT SIGNAL
With CONSULT
1. Start engine.
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "TRANSMISSION" with CONSULT.
3. Vehicle start and read out the value of "INPUT SPEED".
  OK or NG
  
  OK: GO TO 4.
  
  NG: 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 MALFUNCTIONING ITEM
Check the following.
- The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
  OK or NG
  
  OK: Replace the control valve with TCM. Refer to "REMOVAL AND INSTALLATION ".
  
  NG: Repair or replace damaged parts.
CHECK DTC
Perform "DTC Confirmation Procedure".
- Refer to "DTC CONFIRMATION PROCEDURE ".
  OK or NG
  
  OK: INSPECTION END
  
  NG: GO TO 2.