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SYMPTOM PROCEDURES TSB Revision SIMPLIFIED WIRING SYSTEM (SWS) 54B-260 . CIRCUIT OPERATION • The windshield wiper and washer switch sends a signal through the column-ECU (incorporated in • If the SWS communication line is defective, the front-ECU operates windshield wiper motor by . TECHNICAL DESCRIPTION (COMMENT) If the windshield wiper does not work at all, the wind- . TROUBLESHOOTING HINTS • Trouble in input signal system • The wiring harness or connectors may have loose, corroded, or damaged terminals, or termi- • The wiper motor may be defective • The column switch may be defective • The front-ECU may be defective DIAGNOSIS Required Special Tools: • MB991223: Harness Set • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: Vehicle Communication Interface (V.C.I.) • MB991827: MUT-III USB Cable • MB991910: MUT-III Main Harness A • MB991813: SWS Monitor Kit • MB991806: SWS Monitor Cartridge • MB991812: SWS Monitor Harness (For Column-ECU) • MB991822: Probe Harness AC305206 A-03 (B) CONNECTOR: A-03 AI AC305977 CONNECTOR: A-12X AF AC305231 CONNECTOR: C-29 AH |