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COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR TSB Revision CHASSIS ELECTRICAL 54-111 DIAGNOSIS Required Special Tool: • MB991223: Harness Set STEP 1. Check the speedometer operation. YES : Go to Step 2. STEP 2. Check the engine coolant temperature sensor (1) Do not disconnect the engine coolant temperature sensor connector A-08. (2) Turn the ignition switch to the "ON" position. (3) Measure the voltage between terminal 1 and ground by backprobing. The measured value should be approximately nine volts. Q: Does the measured voltage correspond with this range? YES : Go to Step 5. AC201849 ; ; ; ; ; ; ;; ;; CONNECTOR: A-08 AB COMPONENT SIDE A-08 (B) ACX01788 AD A-08 HARNESS CONNECTOR: |