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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1056 (Automatic Transaxle Overhaul & Diagnostics) >> Re5F22A >> Trouble Diagnosis For Symptoms >> A/T Does Not Perform Lock-up >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK A/T FLUID LEVEL 

    Check the A/T fluid level again. Refer to "A/T FLUID CHECK "

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Refill ATF.
  2. CHECK STOP LAMP SWITCH CIRCUIT 

    Check the stop lamp switch circuit. Refer to TROUBLE DIAGNOSIS .

    OK or NG 

    1. OK: GO TO 3.
    2. NG: Repair or replace damaged parts.
  3. CHECK SELF-DIAGNOSTIC RESULTS 

    Perform self-diagnosis.

    Is any malfunction detected by self-diagnostic? 

    1. YES: Check the malfunctioning system.
    2. NO: GO TO 4.
  4. CHECK TCM 
    1. Check TCM input/output signal
    2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

    OK or NG 

    1. OK: GO TO 5.
    2. NG: Repair or replace damaged parts.
  5. SYMPTOM CHECK 

Check again.

OK or NG 

  1. OK: INSPECTION END 
  2. NG: Replace the transaxle assembly. Refer to "REMOVAL AND INSTALLATION ".
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