Diagnostic Procedure

Do you have CONSULT-II? 

1. Yes: GO TO 2.
2. No: GO TO  9.

With CONSULT-II 

1. Start engine.
   Fig 1: CONSULT-II Display - DATA MONITOR

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Read out the value of "FLUID TEMP SE".

   Voltage: Cold [20°C (68°F)] --> Hot [80°C (176°F)] 

   Approximately 1.5V --> 0.5V 

OK or NG 

1. OK: GO TO  10.
2. NG: GO TO 3.

Check the following items:

• Harness for short or open between TCM, ECM and terminal cord assembly
• Ground circuit for ECM

  Refer to "GROUND DISTRIBUTION & POWER DISTRIBUTION ".

OK or NG 

1. OK: GO TO 4.
2. NG: Repair or replace damaged parts.

1. Turn ignition switch to ON position. (do not start engine.)
   Fig 2: Checking Voltage Between TCM Harness Connectors E142, E148 Terminals 10, 19, 28 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Check voltage between TCM harness connectors E142, E148 terminals 10 (R/Y), 19 (R/Y), 28 (Y/R) and ground.

   Voltage: Battery voltage 

OK or NG 

1. OK: GO TO 5.
2. NG: GO TO  6.

1. Turn ignition switch to OFF position.
   Fig 3: Checking Voltage Between TCM Harness Connector E143 Terminal 28 (Y/R) And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Check voltage between TCM harness connector E143 terminal 28 (Y/R) and ground.

   Voltage: Battery voltage 

OK or NG 

1. OK: GO TO  7.
2. NG: GO TO 6.

Check the following items:

• Harness for short or open between battery, ignition switch and TCM
• Ignition switch and fuse

  Refer to "POWER DISTRIBUTION ".

OK or NG 

1. OK: GO TO 7.
2. NG: Repair or replace damaged parts.

1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal cord assembly F30 terminals 6 and 7 when A/T is cold.
   Fig 4: Temperature/Resistance Chart

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Checking Resistance Between Terminal Cord Assembly Connector Terminals

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Reinstall any part removed.

OK or NG 

1. OK: GO TO  10.
2. NG: GO TO 8.

1. Remove oil pan. Refer to "CONTROL VALVE ASSEMBLY AND ACCUMULATORS ".
2. Check the following items:
   • A/T fluid temperature sensor
     • Check resistance between two terminals while changing temperature as shown at below.
       Fig 6: Temperature/Resistance Chart

       Courtesy of NISSAN MOTOR CO., U.S.A.
       Fig 7: Checking A/T Fluid Temperature Sensor

       Courtesy of NISSAN MOTOR CO., U.S.A.
   • Harness of terminal cord assembly for short or open

OK or NG 

1. OK: GO TO  10.
2. NG: Repair or replace damaged parts.

Without CONSULT-II 

1. Start engine.
2. Check voltage between TCM harness connector E143 terminal 47 (G) and ground while warming up A/T.
   Fig 8: Temperature/Voltage Chart

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 9: Checking Voltage Between TCM Harness Connector E143 Terminal 47 (G) And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Turn ignition switch to OFF position.
4. Disconnect TCM harness connector.
5. Check resistance between TCM harness connector E143 terminal 42 (B) and ground. Refer to "WIRING DIAGRAM - AT-BA/FTS ".

   Continuity should exist  .

OK or NG 

1. OK: GO TO 10.
2. NG: GO TO  3.

Perform "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE ".

OK or NG 

1. OK: INSPECTION END 
2. NG: GO TO 11.

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.

1. OK: INSPECTION END 
2. NG: Repair or replace damaged parts.