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POWER SUPPLY AND GROUND CIRCUIT CHECK (KING CAB) PWC-21 < DTC/CIRCUIT DIAGNOSIS > C D E F G H I J L M A B PWC N O P POWER SUPPLY AND GROUND CIRCUIT CHECK (KING CAB) POWER WINDOW MAIN SWITCH INFOID:0000000009878951 • 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:0000000009878952 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-21, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure" POWER WINDOW MAIN SWITCH : Diagnosis Procedure INFOID:0000000009878953 Regarding Wiring Diagram information, refer to PWC-81, "Wiring Diagram - King Cab" 1. CHECK POWER SUPPLY CIRCUIT 1. Turn ignition switch ON. 2. Check voltage between main power window and door lock/ unlock switch connector 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 (A) and main power window and door lock/unlock switch connector (B). 4. Check continuity between BCM connector (A) and ground. Terminal Voltage (V) (Approx.) (+) (–) Main power window and door lock/unlock switch connector Terminal D15 1 Ground Battery voltage 10 LIIA2312E BCM connector Terminal Main power window and door lock/unlock switch connector Terminal Continuity M20 (A) 68 D15 (B) 10 Yes 69 1 LIIA2363E |