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REAR WINDOW DEFOGGER RELAY DEF-9 < COMPONENT DIAGNOSIS > C D E F G H I J K M A B DEF N O P REAR WINDOW DEFOGGER RELAY Description INFOID:0000000005146827 Power is supplied to the rear window defogger with BCM control. Component Function Check INFOID:0000000005146828 1. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT Check that an operation noise of rear window defogger relay (located in IPDM E/R) can be heard when turning the rear window defogger switch ON. YES >> Rear window defogger relay power supply circuit is OK. NO >> Refer to . Diagnosis Procedure INFOID:0000000005146829 Regarding Wiring Diagram information, refer to . 1. CHECK FUSES Check if any of the following fuses in the IPDM E/R are blown. Is the inspection result normal? YES >> GO TO 2 NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. 2. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT 1. Turn ignition switch ON. 2. Check voltage between IPDM E/R connector and ground. Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-35, "Removal and Installation of IPDM E/R" . NO >> GO TO 3 3. CHECK INTERMITTENT INCIDENT Check intermittent incident. GI-38, "Intermittent Incident" Is the inspection result normal? YES >> Check the following. • Battery power supply circuit. • IPDM E/R. NO >> Repair or replace the malfunctioning parts. COMPONENT PARTS AMPERE FUSE NO. IPDM E/R 15A 46 IPDM E/R 15A 47 Terminals Condition of rear window defogger switch Voltage (V) (Approx.) (+) (–) IPDM E/R con- nector Terminal E124 60 Ground ON Battery voltage OFF 0 LIIA2190E |