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PWC-12 < COMPONENT DIAGNOSIS > POWER SUPPLY AND GROUND CIRCUIT COMPONENT DIAGNOSIS POWER SUPPLY AND GROUND CIRCUIT POWER WINDOW MAIN SWITCH INFOID:0000000005147171 • BCM supplies power. • It operates each power window motor via corresponding power window switch and makes window move up/ down when main power window and door lock/unlock switch is operated. POWER WINDOW MAIN SWITCH : Component Function Check INFOID:0000000005147172 Main Power Window And Door Lock/Unlock Switch 1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH FUNCTION Does power window motor operate with main power window and door lock/unlock switch operation? YES >> Main power window and door lock/unlock switch power supply and ground circuit are OK. NO >> Refer to PWC-12, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure" POWER WINDOW MAIN SWITCH : Diagnosis Procedure INFOID:0000000005147173 Regarding Wiring Diagram information, refer to . 1. CHECK POWER SUPPLY CIRCUIT 1. Turn ignition switch ON. 2. Check voltage between main power window and door lock/ unlock switch connectors and ground. Is the measurement value within the specification? YES >> GO TO 3 NO >> GO TO 2 2. CHECK HARNESS CONTINUITY 1. Turn ignition switch OFF. 2. Disconnect BCM and main power window and door lock/unlock switch. 3. Check continuity between BCM connector and main power win- dow and door lock/unlock switch connectors. Terminal Voltage (V) (Approx.) (+) (–) Main power window and door lock/unlock switch connector Terminal D7 (A) 10 Ground Battery voltage D8 (B) 19 ALKIA0273ZZ BCM connector Terminal Main power window and door lock/unlock switch connector Terminal Continuity M20 (A) 68 D7 (B) 10 Yes 69 D8 (C) 19 LIIA2215E |