Diagnostic Procedure

Perform the self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

Is a malfunction in the CAN communication indicated in the results? 

1. YES: Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".
2. NO: GO TO 2.

WITH CONSULT-II 

1. Turn ignition switch "ON". (Do not start engine.)
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
3. Depress accelerator pedal and read out the value of "ACCELE POSI" and "THROTTLE POSI".
   Fig 1: ACC Position And Throttle Position Sensors Display Value Chart

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Display Mode Screen

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Select "SELF-DIAG RESULTS" mode for "A/T" with CONSULT-II. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

OK or NG 

1. OK: GO TO  4.
2. NG: GO TO 3.

WITH CONSULT-II 

1. Turn ignition switch "ON". (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "ENGINE" with CONSULT-II. Refer to "CONSULT-II FUNCTION (A/T) ".

OK or NG 

1. OK: GO TO 4.
2. NG: Check the DTC detected item. Refer to "CONSULT-II FUNCTION (A/T) ".
   • If CAN communication line is detected, go to "DTC U1000 CAN COMMUNICATION LINE ".

Fig 3: Display SELECT SYSTEM Screen

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

Perform "DTC Confirmation Procedure".

• Refer to "DTC CONFIRMATION PROCEDURE ".

OK or NG 

1. OK: INSPECTION END 
2. NG: GO TO 5.

Check TCM power supply and ground circuit. Refer to "MAIN POWER SUPPLY AND GROUND CIRCUIT ".

OK or NG 

1. OK: GO TO 6.
2. NG: Repair or replace damaged parts.

Check the following items:

• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.

OK or NG 

1. OK: Replace the control valve with TCM. Refer to "CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2 ".
2. NG: Repair or replace damaged parts.