System Description

IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input signals from various sensors and the request signals received from control units via CAN communication.

CAUTION: IPDM E/R integrated relays cannot be removed.

RELAY CONTROL SYSTEM DESCRIPTION

Control relay	Input/output	Transmit unit	Control part	Reference
Front fog lamp relay (if equipped)	Front fog lamp request signal	BCM (CAN)	Front fog lamps (if equipped)	FRONT FOG LAMP CIRCUIT
Headlamp (LH) high relay Headlamp (RH) high relay Headlamp low relay	High beam request signal Low beam request signal	BCM (CAN)	Headlamp high Headlamp low	HEADLAMP (HI) CIRCUIT HEADLAMP (LO) CIRCUIT
Tail lamp relay	Position light request signal	BCM (CAN)	Parking lamps License plate lamps Tail lamps Trailer tow relay (if equipped) Illumination system	PARKING LAMP CIRCUIT
Front wiper relay Front wiper high relay	Front wiper request signal	BCM (CAN)	Front wiper motor	WIPER AND WASHER SYSTEM SYMPTOMS
Rear window defogger relay	Rear window defogger request signal	BCM (CAN)	Rear window defogger	REAR WINDOW DEFOGGER SYSTEM
A/C relay	A/C request signal	BCM (CAN) ECM (CAN)	A/C compressor	MAGNET CLUTCH
Starter relay	Ignition switch START signal	TCM	Starter motor	STARTING SYSTEM
Cooling fan relays	Cooling fan request signal	ECM (CAN)	Cooling fan relay	COOLING FAN CONTROL
Heated mirror relay	Heated mirror request signal	BCM (CAN)	Door mirrors	REAR WINDOW DEFOGGER SYSTEM
ECM relay	ECM relay control signal	ECM (CAN)	ECM relay	ENGINE CONTROL SYSTEM , ENGINE CONTROL SYSTEM
Throttle control motor relay	Throttle control motor control signal	ECM (CAN)	Throttle control motor relay	MULTIPORT FUEL INJECTION SYSTEM , MULTIPORT FUEL INJECTION SYSTEM
Fuel pump relay	Fuel pump request signal	ECM (CAN)	Fuel pump	FUEL PUMP
Ignition relay	Ignition switch ON signal	Ignition switch	Ignition relay	IGNITION SIGNAL