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SWS DIAGNOSIS TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-151 CIRCUIT OPERATION. TECHNICAL DESCRIPTION (COMMENT) NOTE: If only one of the fog lights or the fog light . TROUBLESHOOTING HINTS • Malfunction of the fog light relay • Malfunction of the fog light switch • Malfunction of the front-ECU • Malfunction of the ETACS-ECU • Damaged harness wires or connectors DIAGNOSIS Required Special Tools: • MB991223: Test Harness Set • MB991502: Scan Tool (MUT-II) • MB991529: Diagnostic Trouble Code Check Harness AC003128 AK A-09X CONNECTORS: A-06X, A-09X FRONT - ECU A-06X FOGLIGHT BATTERY AC003129 AK A-31 CONNECTORS: A-28, A-31 A-28 AC003089 AF CONNECTORS: C-05, C-29 C-29 C-05 AC003079 AB CONNECTOR CONNECTOR: C-66 AC003082 AM CONNECTORS: C-73, C-78 C-73 C-78 JUNCTION BLOCK |