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COMBINATION METER ASSEMBLY CHASSIS ELECTRICAL 54A-78 STEP 2. Using diagnostic tool MB991958, read A/T Q: Is the DTC set? YES : Refer to GROUP 23A, Automatic Transmission Diagnosis or GROUP 13A Engine (MPI) − Diagnostic Trouble Code Chart , or refer to Output speed sensor system . On completion, go to Step 4. NO : Go to Step 3. STEP 3. Check the speedometer connector. (2) Turn the ignition switch to "ON" position. OK: The speedometer shows that simulated vehi- Q: Is the check result satisfactory? YES : Go to Step 4. STEP 4. Retest the system. Q: Is the check result satisfactory? YES : The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is − How to Cope with Intermittent Malfunction NO : Go to step 1. |