Diagnostic Procedure

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out the value of "VHCL/S SE-MTR" while driving.
  Check the value changes according to driving speed.
  
  Fig 1: CONSULT-II Data Monitor Display
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM harness connector E143 terminal 40 and ground while driving at 2 to 3 km/h (1 to 2 MPH) for 1 m (3 ft.) or more.
  Voltage: Intermittently changes between approx. 0V and approx. 4.5V
OK or NG

OK: GO TO 3.

NG: GO TO 2.

Fig 2: Identifying Voltage Between TCM Harness Connector E143 Terminal 40 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
DETECT MALFUNCTIONING ITEM
Check the following items:
- Combination meter. Refer to "COMBINATION METERS ".
- Harness for short or open between TCM and combination meter.
- ABS actuator and electric unit (control unit). Refer to "TROUBLE DIAGNOSIS " (without VDC) or "TROUBLE DIAGNOSIS " (with VDC).
- Harness for short or open between combination meter and ABS actuator and electric unit (control unit).
OK or NG

OK: GO TO 3.

NG: Repair or replace damaged parts.
CHECK DTC
Perform "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE ".

OK or NG

OK: INSPECTION END

NG: GO TO 4.
CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection. Refer to "TCM TERMINALS AND REFERENCE VALUE ".
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG

OK: INSPECTION END

NG: Repair or replace damaged parts.