Diagnostic Procedure

Do you have CONSULT-II?

Yes or No

• Yes: GO TO 2.
• No: GO TO 9.

With CONSULT-II 

1. Start engine.
2. Select "DATA MONITOR" mode for "A/T" with CONSULT-II.
   Fig 1: CONSULT-II Display - DATA MONITOR Mode For A/T

   Courtesy of NISSAN MOTOR CO., U.S.A.
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

• OK: GO TO 10.
• 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 "POWER SUPPLY AND GROUND CIRCUIT ".

OK or NG

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

1. Turn ignition switch to ON position. (Do not start engine.)
2. Check voltage between TCM harness connectors E142, E143 terminals 10 (R/Y), 19 (R/Y), 28 (Y/R) and ground.
   Fig 2: Checking Voltage Between TCM Harness Connectors E142, E143 Terminals 10, 19, 28 & Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   • Voltage: Battery voltage 

OK or NG

• OK: GO TO 5.
• NG: GO TO 6.

1. Turn ignition switch to OFF position.
2. Check voltage between TCM harness connector E143 terminal 28 (Y/R) and ground.
   Fig 3: Checking Voltage Between TCM Harness Connector E143 Terminal 28 & Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   • Voltage: Battery voltage 

OK or NG

• OK: GO TO 7.
• 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 SUPPLY ROUTING CIRCUIT ".

OK or NG

• OK: GO TO 7.
• 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: Checking Resistance Between Terminal Cord Assembly F30 Terminals 6 & 7

   Courtesy of NISSAN MOTOR CO., U.S.A.
   RESISTANCE SPECIFICATION TABLE
   
   

   Temperature	Resistance (Approx.)
   Cold [20°C (68°F)]	2.5kΩ

4. Reinstall any part removed.

OK or NG

• OK: GO TO 10.
• 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 5: Checking Resistance Between Two Terminals While Changing Temperature

   Courtesy of NISSAN MOTOR CO., U.S.A.
   RESISTANCE SPECIFICATION TABLE
   
   

   Temperature °C (°F)	Resistance (Approx.)
   20 (68)	2.5kΩ
   80 (176)	0.3kΩ

   • Harness of terminal cord assembly for short or open

OK or NG

• OK: GO TO 10.
• 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 6: Checking Voltage Between TCM Harness Connector E143 Terminal 47 & Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   VOLTAGE SPECIFICATION TABLE
   
   

   Temperature	Voltage (Approx.)
   Cold [20°C (68°F)] --> Hot [80°C (176°F)]	1.5V --> 0.5V

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

• OK: GO TO 10.
• NG: GO TO 3.

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

OK or NG

• OK: INSPECTION END 
• 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.

OK or NG

• OK: INSPECTION END 
• NG: Repair or replace damaged parts.