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BLOWER FAN ON SIGNAL HAC-35 < DTC/CIRCUIT DIAGNOSIS > [MANUAL AIR CONDITIONING] C D E F G H J K L M A B HAC N O P BLOWER FAN ON SIGNAL Component Function Check INFOID:0000000009269796 1. CHECK BLOWER FAN ON SIGNAL With CONSULT 1. Turn ignition switch ON. 2. Select “AIR CONDITIONER” of “BCM” using CONSULT. 3. Select “FAN ON SIG” in “DATA MONITOR” mode, and check status under the following condition. Is the inspection result normal? YES >> Inspection End. NO >> Refer to Diagnosis Procedure INFOID:0000000009269797 Regarding Wiring Diagram information, refer to . 1. CHECK BLOWER FAN ON SIGNAL 1. Turn ignition switch OFF. 2. Disconnect front air control harness connector. 3. Turn ignition switch ON. 4. Check output waveform between front air control and ground with using oscilloscope. Is the inspection result normal? YES >> Replace front air control. Refer to HAC-48, "Removal and Installation" . NO >> GO TO 2. 2. CHECK BLOWER FAN ON SIGNAL CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect BCM connector. 3. Check continuity front air control harness connector and BCM harness connector. Monitor item Condition Status FAN ON SIG Fan control dial Except OFF position On OFF position Off + − Output waveform Front air control Connector Terminal M33 5 Ground PKIB4960J Front air control BCM Continuity Connector Terminal Connector Terminal M33 5 M18 (without Intelligent Key system) 28 Yes M97 (with Intelligent Key system) |