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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 785 (Automatic Transmission) >> Trouble Diagnosis For Symptoms >> 14. Lock-up Is Not Released

14. Lock-up Is Not Released

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM: 

Lock-up is not released when accelerator pedal is released. 

  1. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] CIRCUIT 

    With CONSULT-II 

    Does "TCM INPUT SIGNALS" in "DATA MONITOR" show damage to throttle position sensor [accelerator pedal position (APP) sensor] circuit?

    Without CONSULT-II 

    Does self-diagnosis show damage to throttle position sensor [accelerator pedal position (APP) sensor] circuit?

    Yes or No 

    1. Yes: Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to "DTC P0122 OR DTC P0123: THROTTLE POSITION SENSOR " and "DTC P2122 OR DTC P2123: APP SENSOR ".
    2. No: GO TO 2.
    Fig 1: Checking Self-Diagnostic Results Without Consult II (Lock-Up Is Not Released)
    G02160975Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK SYMPTOM 

    Check again.

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO 3.
  3. CHECK TCM INSPECTION 
    1. Perform TCM input/output signal inspection.
    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.