Q: Bad fuse or defective key lock causing ignition problems.

asked by on

Vehicle will not start. It's not the battery. I believe it is either a fuse or a defective key lock.

Hello, it sounds like you have already had the battery tested and it tested good. The next thing that needs to be checked is to see if the starter is turning the motor over. If it is then you need two things for your car to run, and that is fuel and ignition. A qualified technician like one from YourMechanic can test for spark and fuel pressure. He may also test the computer for trouble codes to determine if it is in fact a fuse or ignition key.

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. Bad fuse or defective key lock causing ignition problems.

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 will jump start fine. But when I try to start it from the new battery, it all goes black and power goes out completely

Hi there. It sounds like your new battery may be faulty. If the vehicle jump starts ok, then this is a sign that the new battery is not providing enough cranking amps to engage the starter. It may have a...

Q: Remote car starter not working

If your vehicle has an aftermarket alarm that has an immobilizer that no longer functions; the alarm system will have to be removed and factory wiring repaired in order to start your vehicle. I suggest having a qualified mechanic help...

Q: How do I use the remote start?

If the vehicle is equipped with the remote start option, then the keyless entry system remote will have 4 buttons. The button at the top will have a curved arrow on it. Press the “lock” button before pressing the...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...