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HEADLIGHT TSB Revision CHASSIS ELECTRICAL 54A-129 . TECHNICAL DESCRIPTION (COMMENT) If both headlights (low-beam) do not illuminate nor- . TROUBLESHOOTING HINTS • Malfunction of column switch • Malfunction of headlight relay (LOW) • Malfunction of the ETACS-ECU • Damaged harness wires and connectors DIAGNOSIS Required Special Tools: • MB992006: Extra fine probe • MB991223: Harness set • MB991958 Scan Tool (M.U.T.-III Sub Assembly) Headlight Relay (Low-Beam) Circuit <Discharge Type> ETACS-ECU FUSIBLE 36 HEADLIGHT RELAY BOX AC709111 Connector: A-29X AC AC708972AP Connector: C-312 ETACS-ECU |