Skip the auto shop - Our mechanics make house calls

Q: ABS, Trac Off, and Airbag light on after battery change.

asked by on

purchased 2000 venture van. It was advertised with bad battery. I jumped it, test drove and decided to buy it. I drove it home with the old battery in place. There were no issues. No panel warning lights, no problems with trans. Car ran great. After getting home, I installed a new battery reinstalled fuse block. When I switched the key on, I had a ABS warning light, Trac Off and Airbag light. These stay on constantly now although the brakes seem fine and the trans will shift hard sometimes, sometimes not. Everything was fine before the battery change. Could I be missing a connection. The battery connector to the fuse block spartks when I remove it and reinstall it. It didn't do that initially either.

My car has 206000 miles.
My car has an automatic transmission.

You may have damaged the systems when last you disconnected and connected the positive cable to the fuse block and without using the battery ground. I would recommend disconnecting just the battery ground, and then leaving it off for ten minutes then reconnecting it to see if lights go off. If not, then have a mechanic scan the systems to see if they were damaged. For help with this, a certified technician, like one from YourMechanic, can come to your car’s location to inspect the warning lights and make sure the battery installment was done correctly.

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!
  1. Home
  2. Questions
  3. ABS, Trac Off, and Airbag light on after battery change.

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: How to make a 3 years old, 45000 miles car driving like a new car

Hello. The vehicle may not ever feel like it did when you drove it off the lot. Overtime, wearing and driving over certain bumps can cause slight alterations to the feeling of the drive. In order to get the car...

Q: AC doesn't work, compressor still works

Hello. If there is no air blowing out of the vents then the compressor is typically not the problem. It is common for the blower motor to fail and cause this as well as the blower resistor. Both of these...

Q: Service ESC

The Electronic Stability Control (ESC) system is your car's traction control system. The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic...

Related articles

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...
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.