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 STARTER RELAY
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 and check monitor "STARTER RELAY" ON/OFF.
  
  Fig 1: Identifying Display - Data Monitor
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Item Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between the IPDM E/R connector and ground.
  
  Fig 3: Checking Voltage Between IPDM E/R Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Item Voltage Specification
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 5.
2. NG: GO TO 2.
CHECK HARNESS BETWEEN A/T ASSEMBLY HARNESS CONNECTOR AND IPDM E/R CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector and IPDM E/R connector.
3. Check continuity between A/T assembly harness connector and IPDM E/R connector.
  
  Fig 5: Checking Continuity Between A/T Assembly Harness Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: 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: GO TO 3.
2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK TERMINAL CORD ASSEMBLY
1. Remove control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. Disconnect A/T assembly harness connector and TCM connector.
3. Check continuity between A/T assembly harness connector terminal and TCM connector terminal.
  
  Fig 7: Checking Continuity Between A/T Assembly Harness Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 8: 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: GO TO 4.
2. NG: Replace open circuit or short to ground and short to power in harness or connectors.
DETECT MALFUNCTIONING ITEM
Check the following.
- Starter relay, Refer to "STARTING SYSTEM ".
- IPDM E/R, Refer to "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) ".
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: Repair or replace damaged parts.
CHECK DTC
Perform "DTC Confirmation Procedure".
- Refer to "DTC CONFIRMATION PROCEDURE ".
OK or NG
1. OK: INSPECTION END
2. NG: GO TO 2.