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what fuse controls the speedometer
The combination instrument fuse controls the braking of each switch.There are generally two fuse boxes on the car, one on the right side of the engine compartment, which is mainly responsible for the safety of external electrical appliances of the car, such as ECU, glass water, lamp, horn, ABS and other circuits; The other one is on the left side of the lower part of the steering column, which is mainly responsible for the normal operation of electric appliances in the vehicle such as cigarette lighter, window lifting, power seat and airbag.Generally, there are two fuse boxes on the vehicle. One is located inside the engine compartment, which is responsible for the normal operation of external electrical appliances of the vehicle, such as the safety protection of circuits such as lamp, horn, trip computer, air conditioning compressor and glass water motor. The other is located on the left side of the steering wheel or in the glove box, which is responsible for the normal operation of electrical appliances in the vehicle, such as window lifting, cigarette lighter Power seats and airbags, etc.
The following table describes the main electrical equipment, fuses, numbers and electrical equipment corresponding to each fuse position, Current intensity (AMPS) 10 engine control unit, gateway 5A 11 parking aid control unit (PDC) 5A 11 parking aid control unit (PLA) 5A 12 ASR button, esp button, RPA button / ABS control unit, ESP control unit, brake signal switch, tiptronic switch, steering aid control unit, headlights, LWR 5A 13 rcn110cd radio 7,5A 14 oil pump controller, reversing switch, diagnostic interface 5A 15 airbag control unit 5A 16 combination instrument control unit, headlamp switch, refrigerant pressure vessel sensor 5A 20 BCM, SRR / rhsh relay 5A 21 manual air conditioning, tiptronic switch, light switch, diagnostic interface, clinatronic control switch 10A 23 front door centralized control power supply.
Matters needing attention:
When the circuit breaks down or is abnormal, the current increases continuously, and the increased current may damage some important devices in the circuit, burn the circuit or even cause fire. If the fuse is correctly placed in the circuit, the fuse will fuse and cut off the current when the current abnormally rises to a certain height and heat, so as to protect the safe operation of the circuit.
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