Electrical System parts and their functions

10 top-level parts · 750 parts in total · full bill of materials below

#	Part	Qty	What it does
1	12 V Battery	1×	12 V lead-acid or lithium battery that powers the vehicle's low-voltage electronics and starts or wakes the main system.
2	LV Wiring Harness 4 parts	1×	Low-voltage wiring harness distributing 12 V power and signals to lights, sensors, switches, and control units.
3	Fuse Box	1×	Enclosure holding the fuses and relays that protect and switch the vehicle's electrical circuits.
4	Relay	8×	Electromechanical switch in which a small coil current closes or opens contacts rated for a much larger load, isolating control circuits from what they switch.
5	Electronic Control Unit 4 parts	4×	Electronic control unit: a sealed microcontroller module with power, sensor inputs, and outputs that runs one vehicle system's control software.
6	Instrument Cluster	1×	Display unit behind the steering wheel that shows speed, status, and warnings on gauges or a screen.
7	Infotainment Head Unit 5 parts	1×	Dashboard head unit with display, processor, radio, and connectivity that runs navigation, media, and phone functions.
8	HVAC Unit 5 parts	1×	Heating, ventilation, and air-conditioning module with blower, evaporator, heater, and blend doors that conditions cabin air.
9	Alternator	1×
10	Starter Motor	1×

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Bill of materials for Electrical System

10 top-level lines · 28 rows shown · 750 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	12 V Battery	lv-battery	1×	1	·	part
2	LV Wiring Harness 4 parts	lv-harness	1×	1	54	assembly
2.1	Wire Bundle	wire-bundle	1×	1	·	part
2.2	Connector	connector	40×	40	·	part
2.3	Fuse Box	fuse-box	1×	1	·	part
2.4	Relay	relay	12×	12	·	part
3	Fuse Box	fuse-box	1×	1	·	part
4	Relay	relay	8×	8	·	part
5	Electronic Control Unit 4 parts	ecu	4×	4	93	assembly
5.1	Bare PCB	pcb-bare	1×	4	·	part
5.2	Microcontroller	mcu	1×	4	·	part
5.3	CAN Transceiver	can-transceiver	1×	4	·	part
5.4	SMD Passive (R/C/L)	smd-passives	90×	360	·	part
6	Instrument Cluster	instrument-cluster	1×	1	·	part
7	Infotainment Head Unit 5 parts	infotainment-unit	1×	1	304	assembly
7.1	Bare PCB	pcb-bare	1×	1	·	part
7.2	Compute SoC Module	soc-module	1×	1	·	part
7.3	LCD Panel	lcd-panel	1×	1	·	part
7.4	Touch Digitizer	touch-digitizer	1×	1	·	part
7.5	SMD Passive (R/C/L)	smd-passives	300×	300	·	part
8	HVAC Unit 5 parts	hvac-unit	1×	1	7	assembly
8.1	Blower Motor	blower-motor	1×	1	·	part
8.2	Evaporator	evaporator	1×	1	·	part
8.3	PTC Heater Core	heater-core	1×	1	·	part
8.4	Cabin Air Filter	cabin-filter	1×	1	·	part
8.5	HVAC Actuator	hvac-actuator	3×	3	·	part
9	Alternator	pickup-truck-alternator	1×	1	·	part
10	Starter Motor	pickup-truck-starter	1×	1	·	part

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Where the electrical system is used

1 product across 1 domain contain it, directly or inside a sub-assembly

• Automobiles 1 Pickup Truck

Used in 1 assembly

Pickup Truck

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics bydelectronic.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks