Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Nissan Titan. 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: CONSULT-II Display
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. Refer to WIRING DIAGRAM (A/T) .
Fig 2: Voltage Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Voltage
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 3.
2. NG: GO TO 2.
DETECT MALFUNCTIONING ITEM
Check the following items:
- Starter relay
- Open or short-circuits in the harness between TCM and the IPDM E/R.
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace damaged parts.
CHECK TCM
Perform TCM input/output signal inspection. Refer to TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES .

OK or NG
1. OK: GO TO 5.
2. NG: GO TO 4.
DETECT MALFUNCTIONING ITEM
Check the following items:
- Power supply and ground circuit for TCM.
- The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
1. OK: Replace the transmission assembly. Refer to REMOVAL & INSTALLATION - TITAN article.
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 3.