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KEY CYLINDER SWITCH SEC-85 < DTC/CIRCUIT DIAGNOSIS > C D E F G H I J L M A B SEC N O P KEY CYLINDER SWITCH Description INFOID:0000000010052012 The main power window and door lock/unlock switch detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal. Component Function Check INFOID:0000000010052013 1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL Check KEY CYL UN-SW, KEY CYL UN-SW in “DATA MONITOR” mode for “POWER DOOR LOCK SYSTEM” with CONSULT. Refer to BCS-19, "DOOR LOCK : CONSULT Function (BCM - DOOR LOCK)" Is the inspection result normal? YES >> Key cylinder switch is OK. NO >> Refer to Diagnosis Procedure INFOID:0000000010052014 Regarding Wiring Diagram information, refer to 1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 1. Turn ignition switch ON. 2. Check voltage between main power window and door lock/ unlock switch harness connector D7 terminal 4, 6 and ground. Is the inspection result normal? YES >> Replace main power window and door lock/unlock switch. Refer to . After that, refer to SEC-87, "Special Repair Requirement" NO >> GO TO 2 2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect main power window and door lock/unlock switch connector and front door lock assembly LH connector. Monitor item Condition KEY CYL LK-SW Lock : ON Neutral / Unlock : OFF KEY CYL UN-SW Unlock : ON Neutral / Lock : OFF Terminals Key position Voltage (V) (Approx.) (+) (–) Main power window and door lock/un- lock switch connector Terminal D7 4 Ground Lock 0 Neutral / Unlock 5 6 Unlock 0 Neutral / Lock 5 LIIA0566E |