Nissan Murano: System Description / Component Parts. Power Distribution System

Nissan Murano (Z52) 2015-2024 Service Manual / Electrical & Power Control / Power Control System :: Power Distribution System / System Description / Component Parts. Power Distribution System

Component Parts Location

Front of center console

Instrument lower panel LH

No.	Component	Function
1.	Push-button ignition switch	Refer to Push-Button Ignition Switch.
2.	IPDM E/R (Intelligent Power Distribution Module Engine Room)	IPDM E/R detects the push-button ignition switch status, and transmits the push-button ignition switch status signal (CAN) to BCM. IPDM E/R receives ignition relay-1 (IPDM E/R) control signal and push-button ignition switch ON signal (CAN) from BCM, and controls ignition relay-1 (built in IPDM E/R) Refer to System Description.
3.	Transmission range switch	The transmission range switch detects the selector lever position. Refer to Transmission Range Switch for detailed component location.
4.	Stop lamp switch	Stop lamp switch detects that brake pedal is depressed, and transmits the signal to BCM. Refer to Brake Pedal Position Switch / Stop Lamp Switch for detailed component location.
5.	BCM (Body Control Module)	BCM controls power distribution system. BCM judges the push-button ignition switch status by push-button ignition switch and Nissan Murano vehicle condition. BCM checks the push-button ignition switch status internally. Refer to System Description.
6.	CVT shift selector (detent switch)	CVT shift selector (detent switch) detects shift lever status, transmits detention switch signal to BCM. Refer to Component Parts Location for detailed component location.
7.	Ignition relay-2 [in fuse block (J/B)]	Ignition relay-2 is controlled by BCM. Ignition relay-2 supplies ignition ON power supply or ignition ON signal to each ECU and system when the push-button ignition switch is ON. BCM compares status of ignition relay-2 control signal and push-button ignition switch status judged by BCM. BCM monitors ignition relay-2 operating status by ignition relay-2 feedback signal.
8.	Front blower motor relay [in fuse block (J/B)]	Front blower motor relay is controlled by BCM. Front blower motor supplies ignition ON power supply or ignition ON signal to air conditioning system when the push-button ignition switch is ON. BCM compares status of front blower motor relay control signal and push-button ignition switch status judged by BCM.
9.	Rear window defogger relay [in fuse block (J/B)]	Operates the rear window defogger and the door mirror defogger with the control signal from BCM.
10.	Accessory relay-1 [in fuse block (J/B)]	Accessory relay-1 is controlled by BCM. Accessory relay-1 supplies accessory power supply or ignition ON signal to each ECU when the push-button ignition switch is ON. BCM compares status of accessory relay-1 control signal, and push-button ignition switch status judged by BCM.

Push-Button Ignition Switch

Push-button ignition switch is installed in the console.
Push-button ignition switch is pressed, and transmits the status signal to BCM and IPDM E/R.

System Description

System. Power Distribution System

System Description SYSTEM DIAGRAMSignal transmission function list Signal name Input Output Description Push-button ignition switch signal Push-button ignition switch BCM Transmits the push-button ignition switch signal to the BCM...

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