Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. 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 "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out the value of "TURBINE REV". Check the value changes according to engine 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 M120 terminal 38 and ground. (Measure in AC range.)
  
  Fig 2: Checking Voltage Between TCM Harness Connector M120 Terminal 38 And Ground
  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 harness for short or open between TCM and turbine revolution sensor.

OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace damaged parts.
CHECK DTC
Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE , .

OK or NG
1. OK: INSPECTION END
2. NG: GO TO 4.
CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminal for damage or loose connection with harness connector.
OK or NG
1. OK: INSPECTION END
2. NG: Repair or replace damaged parts.