Diagnostic Procedure

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 "VHCL/S SE.MTR" while driving. Check the value changes according to driving speed.
  
  Fig 1: Identifying Data Monitor Mode Consult-II Screen
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM harness connector F50 terminal 40 (PU/R) and ground while driving at 2 to 3 km/h (1 to 2 MPH) for 1 m (3 ft) or more.
  
  Fig 2: Identifying TCM Input Signals In Data Monitor Mode For A/T Without Consult-II
  Courtesy of NISSAN MOTOR CO., U.S.A.
1. OK or NG
OK: GO TO 3.

NG: GO TO 2.
Detect Malfunctioning Item
Check the following items:
- Combination meter Refer to COMBINATION METER .
- Harness for short or open between TCM and combination meter
- ABS/TCS control unit (with TCS) Refer to ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION .
- Harness for short or open between combination meter and ABS/TCS control unit (with TCS)
- Vehicle speed sensor and ground circuit for vehicle speed sensor (with VDC) Refer to VEHICLE SPEED SENSOR SIGNAL CHECK .
- Harness for short or open between combination meter and vehicle speed sensor (with VDC)
1. OK or NG
OK: GO TO 3.

NG: Repair or replace damaged parts.
Check DTC
Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE .
1. OK or NG
OK: Inspection End

NG: GO TO 4.
Check TCM Inspection
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
1. OK or NG
OK: Inspection End

NG: Repair or replace damaged parts.