Skip the auto shop - Our mechanics make house calls

Q: are ESC/Traction and Brake light issues related?

asked by on

I was flagged down and told my brake lights were not working, however upon inspection we discovered that while driving, my driving lights are fully illuminated, but when pressure is applied to the brake pedal the lights turn off unless the brake pedal is FLOORED and then the lights come on. we replaced the brake pedal sensor and that fixed the problem for a day or so and then the issue continued. an extended issues in my car is dash lights for "service esc service traction" but has caused no changes in function of the car, and the lights come and go and varied intervals that make no sense (not related to speed, weather, driving conditions, driving time) Could these two issues be related? What should I look at first, there seems to be a million things that it could be, and I don't have a million dollars to spend experimenting :)

My car has 130000 miles.
My car has an automatic transmission.

This is an electrical issue and, as well, the issue involving the ESC system is probably electrical in nature, too. I would suggest downloading the diagnostic trouble codes that undoubtedly have been stored relative to the ESC malfunction to see if those codes implicate any part of the brake light circuit (e.g., there could be a common fuse which has an intermittent connection). If those codes are relevant, you will start with those codes but if not start with a simple trace of the brake light circuit to determine where and why that circuit is not completing when the brake light switch is confirmed closed. To perform the diagnostic, you must have the Factory Service Manual wiring diagram in hand, so it might be more efficient for you to simply request an electrical component/circuit diagnostic - brake light/ECS system and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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: Multiple warning lights due to electronic control module - 2009 Kia Borrego

As the problem is fairly uncommon, it is likely the engine ecu did experience a processing failure and caused many warning lights to illuminate once the computer lost communication with the other systems. All of the systems where warnings came...

Q: Where would I be able to get a professionals help from? Besides the dealership. I have water in my trunk, not the seal.

I just had a similar issue with a really substantial, and long standing, tail light water leak on a 1999 Nissan Sentra. High quality silicone sealant worked perfectly to create a bone dry environment once again. Typically the the taillights...

Q: Glow Plug coil lights up while driving.

Hi there. The controller to the glow plugs is malfunctioning and tripping the ECM (computer) and telling it that the engine has stalled. I recommend replacing the glow plug controller / timer unit. If you need further assistance with your...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.