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HEADLIGHT TSB Revision CHASSIS ELECTRICAL 54A-169 . TECHNICAL DESCRIPTION (COMMENT) When one of the headlights does not illuminate, the . TROUBLESHOOTING HINTS • Malfunction of the headlight bulbs • Malfunction of the headlight assembly • Malfunction of the headlamp control unit • Damaged harness wires and connectors DIAGNOSIS Required Special Tools: • MB992006: Extra fine probe • MB991223: Harness set STEP 1. Check headlight (LOW) connector A-37 <LH>, A-56 <RH> in good condition? STEP 2. Check bulb. YES : Go to Step 3. illuminate. AC901112 A-56 (B) Connectors: A-37, A-56 AR A-37 (B) |