Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK PNP SW CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select "SELECTION FROM MENU" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Check if correct selector lever position (N/P, R or D) is displayed as selector lever is moved into each position.
  
  Fig 1: Identifying Display
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Item Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 5.
2. NG: GO TO 2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to "MAIN POWER SUPPLY AND GROUND CIRCUIT ".

OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace damaged parts.
DETECT MALFUNCTIONING ITEM
Check the following.
- A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
1. OK: GO TO 4.
2. NG: Repair or replace damaged parts.
CHECK SUB-HARNESS
1. Remove control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. Disconnect park/neutral position switch connector and TCM connector.
3. Check continuity between park/neutral position switch connector terminals and TCM connector terminals.
  
  Fig 3: Checking Continuity Between Park/Neutral Position Switch Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Item Continuity Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
1. OK: Replace the control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. NG: Replace open circuit or short to ground and short to power in harness or connectors.
CHECK DTC
Perform "DTC Confirmation Procedure".
- Refer to "DTC CONFIRMATION PROCEDURE ".
OK or NG
1. OK: INSPECTION END
2. NG: GO TO 2.