Skip the auto shop - Our mechanics make house calls

Q: Electrical problems with car

asked by on

I had an electrical problem and ran a new ground wire. My car still has the same problem and now none of the electrical systems in the car work.

Hi there. On the right front wheel well, there are a series of fusible links which distribute battery power to all of the vehicle’s electrical systems. One is gray and is labeled "fusible link K," which supplies power to all of the interior electronic fuses in the fusebox. The power needs to be checked at the fuses of the interior accessories that are not operating to see if they correlate with the power loss. If power is present to all of the fuses that connect to the accessories not operating, then the link is ok. If not, the link will need to be replaced. If all non operating accessories have power, then the problem still lies in the grounding circuit.

By safely removing the negative battery terminal from the battery, the ground circuit can be checked for continuity with a ohmmeter. If the resistance is near 0 ohms, reconnect the battery. A voltage drop test needs to be conducted to the chassis ground and also from the chassis ground to the battery to ensure no excessive resistance is present. The voltage drop readings should not exceed 0.1 volts. All ground connections should be checked and cleaned if the ground side voltage drop is above 0.1 volts. You may want to enlist the help of a mechanic, like one from YourMechanic, who has the training and equipment to diagnose the electrical system issue.

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
  1. Home
  2. Questions
  3. Electrical problems with car

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: Car keeps dying

Hello. We will be happy to assist you. To find the cause of your drain a parasitic draw test must be performed. A parasitic draw test is performed by disconnecting the negative terminal of the battery and hooking a multimeter...

Q: Window came off track

Hi. If the window came off of the track then the door panel would need to come off to see why that occurred. Most of the time the window comes off because the regulator is failing and the window bound...

Q: Oil Change issues

Hello, thank you for writing in. Your issue is likely something small and silly that you are overlooking. Often the oil filter seal sticks to the engine rather than the old oil filter when you take it off. If this...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...