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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) EXL-309 < ECU DIAGNOSIS > [HALOGEN TYPE] C D E F G H I J K M A B EXL N O P *1: HR engine models *2: MR engine and K9K engine models If no CAN communication is available with BCM Ignition relay malfunction detection function • IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it. coil circuit. • If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned OFF. NOTE: The tail lamp relay is turned OFF when the ignition switch is turned ON. Front wiper control IPDM E/R detects the front wiper stop position with the front wiper auto stop signal. NOTE: Control part Fail-safe in operation Cooling fan • The cooling fan relay-2* 1 or the cooling fan relay-3* 2 turns ON when the ignition switch is turned ON • Turns off the fan motor low relay when the ignition switch is turned OFF A/C compressor A/C relay OFF Control part Fail-safe in operation Headlamp • The headlamp low relay turns ON when the ignition switch is turned ON • Parking lamps • The tail lamp relay turns ON when the ignition switch is turned ON Front wiper • The status just before activation of fail-safe control is maintained until the ignition switch is turned OFF while the front wiper is operating at LO or HI speed. • The front wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control is activated while the front wiper is set in the INT mode and the front Front fog lamps Front fog lamp relay OFF Starter motor Inhibit relay OFF Rear window defogger Rear window defogger relay OFF Headlamp washer Headlamp washer relay OFF PTC heater PTC heater relay OFF DTC Ignition switch Ignition relay Tail lamp relay — ON ON — — OFF OFF — B2098: IGN RLY ON OFF ON ON (10 minutes) B2099: IGN RLY OFF ON OFF — Ignition switch Front wiper switch Front wiper auto stop signal ON OFF The front wiper auto stop signal (stop posi- ON The front wiper auto stop signal does not |