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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Symptom Troubleshooting [Automatic Transaxle]) >> No.9 Abnormal Shifting >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
ABNORMAL SHIFTING - DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Inspect continuity between TCM terminals C and Y and transaxle case.
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace ground circuit.
2
  • Stop engine.
  • Inspect shift solenoid A, B, or C circuit.
  • Are they okay?
 Yes Inspect TCM terminal for bend, damage, corrosion or poor contact.
No
  • Inspect connection of shift solenoid A, B, or C terminal on ATX for bending, damage, corrosion or looseness.
  • Inspect for stuck shift solenoid.

    (See SOLENOID VALVE INSPECTION .)

    • If shift solenoids is normal, inspect for open or short circuit between TCM terminals 2W, 2T, 2X and coupler component terminals I, G, or F.
3
  • Verify test results.
    • If okay, return to DIAGNOSTIC INDEX  to service any additional symptoms.
    • If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
      • If vehicle is repaired, troubleshooting completed.
      • If vehicle is not repaired or additional diagnostic information not available, replace TCM.
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