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Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC 
    1. Turn ignition switch ON. (Do not start engine.)
    2. Select "SELF-DIAG RESULTS" mode for "TRANSMISSION" with CONSULT-II.
    3. Erase self-diagnostic results. Refer to "HOW TO ERASE DTC (WITH CONSULT-II) ".
    4. Turn ignition switch OFF, and wait for 5 seconds or more.
    5. Start engine.
    6. Confirm self-diagnostic results again. Refer to "SELF-DIAGNOSTIC RESULT MODE ".

    Is the "TCM-POWER SUPPLY" displayed?

    1. YES: GO TO 2.
    2. NO: INSPECTION END 
    Fig 1: SELF-DIAG RESULTS - Consult II Display
    G00769749Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK TCM POWER SOURCE, STEP 1 
    1. Turn ignition switch OFF.
    2. Check voltage between TCM connector terminal and ground.
      Fig 2: Terminals Voltage Reference Chart
      G00769750Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 3.
    2. NG: GO TO  4.
    Fig 3: Checking Voltage Between TCM Connector Terminal And Ground
    G00769751Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK TCM POWER SOURCE, STEP 2 
    1. Turn ignition switch ON. (Do not start engine.)
    2. Check voltage between TCM connector terminal and ground.
      Fig 4: Terminals Voltage Reference Chart
      G00769752Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 5: Checking Voltage Between TCM Connector Terminal And Ground
      G00769753Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  5.
    2. NG: GO TO 4.
  4. DETECT MALFUNCTIONING ITEM 

    Check the following items:

    • Harness for short or open between battery and TCM connector terminal 28
    • Harness for short or open between ignition switch and TCM connector terminal 10, 19
    • 10A fuse (No 83, located in the IPDM E/R)
    • Ignition switch.

    OK or NG 

    1. OK: GO TO 5.
    2. NG: Repair or replace damaged parts.
  5. CHECK TCM GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect TCM connector.
    3. Check continuity between TCM connector terminal and ground.
      Fig 6: Terminals Continuity Reference Chart
      G00769754Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 6.
    2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
    Fig 7: Checking Continuity Between TCM Connector Terminal And Ground
    G00769755Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK DTC 

    Check again. Refer to "DIAGNOSTIC PROCEDURE ".

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO 7.
  7. 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.
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