Diagnostic Procedure

Inspection Start
Do you have CONSULT-II?
1. Yes or No
Yes: GO TO 2.

No: GO TO 6.
Check Input Signal Of A/T Fluid Temperature Sensor (With Consult-II)
With CONSULT-II
1. Start engine.
2. Select "TCM INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
  
  Fig 1: Identifying Data Monitor Sheet With Consult-II
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Read out the value of "FLUID TEMP SE".
OK: GO TO 7.

NG: GO TO 3.
Check A/T Fluid Temperature Sensor With Terminal Cord Assembly
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 (G) and 7 (B) when A/T is cold.
  
  Fig 2: Checking A/T Fluid Temperature Sensor Resistance
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Reinstall any part removed.
OK: GO TO 4.

NG: GO TO 5.
Detect Malfunctioning Item
Check the following items:
- Harness for short to ground or short to power or open between TCM, ECM and terminal cord assembly
- Ground circuit for ECM
Refer to POWER DISTRIBUTION .
1. OK or NG
OK: GO TO 7.

NG: Repair or replace damaged parts.
Detect Malfunctioning Item
1. Remove oil pan, refer to REMOVAL .
2. Check the following items:
  - A/T fluid temperature sensor
    Check resistance between A/T fluid temperature sensor harness connector F92 terminals 6 (G) and 7 (B) while changing temperature as shown at below.
    
    Fig 3: Checking A/T Fluid Temperature Sensor Harness Resistance
    Courtesy of NISSAN MOTOR CO., U.S.A.
    
    Fig 4: Identifying Temperature & Resistance Table
    Courtesy of NISSAN MOTOR CO., U.S.A.
  - Harness of terminal cord assembly for short or open
1. OK or NG
OK: GO TO 7.

NG: Repair or replace damaged parts.
Check Input Signal Of A/T Fluid Temperature Sensor (Without Consult-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM harness connector F50 terminal 47 (G) and ground while warming up A/T.
  
  Fig 5: Checking Voltage Between TCM Harness Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
1. OK or NG
OK: GO TO 7.

NG: GO TO 2.
Check DTC
Perform DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE .
1. OK or NG
OK: Inspection End

NG: GO TO 8.
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.