Diagnostic Procedure

Check DTC with ECM
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 " .
OK or NG
1. OK : GO TO 2.
2. NG : Check the DTC detected item. Go to " CONSULT-II FUNCTION " .
  - If CAN communication line is detected, go to DTC U1000 CAN COMMUNICATION LINE .
Check DTC with TCM
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 "ACCLE POS" and "THROTTLE POSI".
  
  Fig 1: Reading "ACCELE & THROTTLE" Position on CONSULT-II
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Check engine speed changes according to throttle position.
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 3.
2. NG : Repair or replace damaged parts.
Check DTC:
Perform "DTC Confirmation Procedure". Refer to " DTC CONFIRMATION PROCEDURE " .

OK or NG
1. OK : Inspection end.
2. NG : GO TO 4.
Check TCM
1. Check TCM input/output signal. Refer to, " TCM INPUT/OUTPUT SIGNAL REFERENCE VALUES " .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
1. OK : Inspection end.
2. NG : Repair or replace damaged parts.