Skip the auto shop - Our mechanics make house calls

Q: After brake switch & assembly replacements, brake lights stay on

asked by on

The brake lights on my van are staying on. Twice, I have replaced the brake switch plus the brake assembly and switch. Each time I replaced those parts the car would perform well for only about two days. What is the problem that is causing the replacements to not keep working well after only two days? Thanks.

A: Hello. This sounds like you may have a shor...

Hello. This sounds like you may have a short in the wiring that goes to the brake light switch. I would recommend having a qualified professional use a digital multimeter to test the brake switch circuit for excess resistance. If the resistance in this circuit is out of specification, there is most likely a short in the wiring somewhere. Finding this short would require tracing the wires through the car and testing resistance in different locations to determine exactly where the short is located. Once the short is found, it may be repaired or the whole harness may require replacement depending on the extent of the damage.

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

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 interior/dome lights won't turn on.

Hi there. For the interior lights not working after replacing the battery, first check the switch to make sure that the light is on. If the light is on the door selection and will not turn on, then one of...

Q: Truck turns over but doesn't start

It is quite possible that the fuel filter is what is causing your no start issue. If the fuel filter becomes clogged with debris, the fuel pressure at the fuel rail will decrease due to the restriction. If the fuel...

Q: Difficult to control in wind and veers above 60 mph

Hello there. This sounds like a more unusual situation. Ford uses the rollover stability control system as an additional safety feature to help prevent rollovers. A bit of body movement in normal wind speeds would not be abnormal. It should...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control 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...