Q: Accidentally grounded out hot wire to chassis, now no electric available.

asked by on

I accidentally grounded a hot wire from the positive terminal to the body, now there's absolutely no electrical in the car. All the fuses are in tact, is there a relay I can test before checking/replacing the PCM?

My car has 56000 miles.

Hello. There are high current fusible links that should be tested before you look at the relays, particularly the circuit opening relay(s). These links are depicted on the factory wiring diagram for the vehicle. Since you short-circuited the battery, it’s worth testing the battery (voltage, load test as well) to see if perhaps the battery is simply not putting out sufficient voltage.

It’s a long shot, but nevertheless has to be done to rule out obvious possibilities. To do a proper and systematic check of the fusible links, wiring, and relays, and trace the "main circuits" to the point of failure requires the wiring diagrams. I recommend setting up an electric diagnostic with a certified technician in order to get this covered. They will be able to scope the situation out and let you know exactly what should be done so that you don’t have to guess.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Accidentally grounded out hot wire to chassis, now no electric available.

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: 2011 Lincoln MKZ has distinct pull/drift to left

I would first recommend having all of your tires on your 2011 Lincoln MKZ checked for incorrect tire conicity. Tire conicity is the ability of the tire to become cone shaped. If the tire tread becomes cone shaped this means...

Q: Hi my mom has a 99 toyota Camry and she just replaced her battery and now nothing works

There might be a pigtail cable on the battery cable that has been damaged. The battery cables usually have one or two smaller gauge wires that come off of the cable to power up other circuits. You can look at...

Q: Interested in purchasing a vehicle

As for the car itself, the Audi R8 is a fantastic car. Very sporty and likely extremely fun to drive. I can see where the option to buy one at a likely discounted price due to the flood damage would...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...