System Description

WARNING: This page is about a different car, the 2015 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.

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.

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)	DESCRIPTION
Headlamp high relay Headlamp low relay	High beam request signal Low beam request signal	BCM (CAN)	Headlamp high Headlamp low	SYSTEM DESCRIPTION DESCRIPTION
Tail lamp relay	Position light request signal	BCM (CAN)	Parking lamps License plate lamps Tail lamps Trailer tow relay Illumination system	DESCRIPTION
Front wiper relay Front wiper high relay	Front wiper request signal	BCM (CAN)	Front wiper motor	SYMPTOM TABLE
Rear window defogger relay (if equipped)	Rear window defogger request signal	BCM (CAN)	Rear window defogger (if equipped)	SYSTEM DESCRIPTION
A/C relay	A/C request signal	BCM (CAN) ECM (CAN)	A/C compressor	MAGNET CLUTCH COMPONENT FUNCTION CHECK
Starter relay	Ignition switch START signal	TCM (A/T) Clutch interlock (M/T)	Starter motor	SYSTEM DIAGRAM (A/T) SYSTEM DIAGRAM (M/T with clutch interlock cancel system) SYSTEM DIAGRAM (M/T without clutch interlock cancel system)
Cooling fan relays (if equipped)	Cooling fan request signal	ECM (CAN)	Cooling fan relay (if equipped)	DESCRIPTION (For USA and Canada) DESCRIPTION (For Mexico)
Heated mirror relay (if equipped)	Heated mirror request signal	BCM (CAN)	Door mirrors (if equipped)	SYSTEM DESCRIPTION
ECM relay	ECM relay control signal	ECM (CAN)	ECM relay	SYSTEM DIAGRAM (QR25DE) SYSTEM DIAGRAM (VQ40DE for USA and Canada) SYSTEM DIAGRAM (VQ40DE for Mexico
Throttle control motor relay	Throttle control motor control signal	ECM (CAN)	Throttle control motor relay	SYSTEM DESCRIPTION (QR25DE) SYSTEM DESCRIPTION (VQ40DE for USA and Canada) SYSTEM DESCRIPTION (VQ40DE for Mexico)
Fuel pump relay	Fuel pump request signal	ECM (CAN)	Fuel pump	DESCRIPTION (QR25DE) DESCRIPTION (VQ40DE for USA and Canada) DESCRIPTION (VQ40DE for Mexico)
Ignition relay	Ignition switch ON signal	Ignition switch	Ignition relay	COMPONENT DESCRIPTION (QR25DE) COMPONENT DESCRIPTION (VQ40DE for USA and Canada) COMPONENT DESCRIPTION (VQ40DE for Mexico)