Skip the auto shop - Our mechanics make house calls

Q: None of my electrical components are working

asked by on

Battery, fuses, and power to fuses are good, but none of the electrical components are working. No lights, No ignition, No gauges

My car has 80000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. If nothing operates, the circuit is not complete. What you want to do is select one of the non-working circuits and simply trace the circuit until you find the open. Inasmuch as nothing works, you are likely to find a major power distribution device (could be a relay, a central ground, an overlooked fuse, even the ignition key) that is not functioning. To trace the circuit you will need the wiring diagram. YourMechanic, in your local area, has such diagrams for all vehicles, and could assist you with the diagnosis. In principle circuits are simple. They have a beginning and an end and they are "closed" when operating an electrical "load" (the "load" could be a device, bulb, solenoid, etc.). If the circuit is open and thus the "load" is malfunctioning (or the load is just simply not functioning at all), you just have to simply trace the circuit to find the open or broken segment. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Obd codes 33,34, and 43 what does this mean? 1993 Chevrolet K1500

Hi - the diagnostic trouble codes you mention are: 33- Manifold Absolute Pressure circuit/sensor malfunction: wiring open circuit/shorted circuit to positive, hose blocked/leaking, MAP sensor, 34- manifold Absolute Pressure circuit/sensor malfunction: wiring shorted to ground, 42- ignition control module circuit...

Q: Car starts, then shakes and idles rough

The fuel injection fuel regulator is leaking fuel into the intake when you are running and causing excessive fuel to get into the engine and this is the reason you smell gas fumes from the tail pipe. The fuel regulator...

Q: Turn knob to four wheel drive but won't go into four wheel drive. I changed the switch and actuator but it won't work

Hello. The 4WD system consists of a module, encoder motor, and actuator. The module operates the transfer case (component that sends power to the front differential). The transfer has an encoder motor that shifts the transfer case by the commands...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...