ABS and TC2 Lights ON after accident repair

[ADOR]

After almost a month after the accident, I finally got back the H2 from the repair shop. They fixed the Right Rear Quarter panel damage, bumper, replaced upper and lower control arms (bent), replaced rear right tire, etc.

After driving for few miles on the day I picked up the H2, the ABS and TC2 lights came on. I turned off the engine and re-started. Lights went out. After driving for couple of more days and about 30-35 miles total, the 2 lights came on again today. I turned off and re-started the engine. Went out for few miles, then came back again. I will be taking back the H2 to the shop this Monday.

Any idea on what is the possible cause of the ABS and TC2 warning lights?

 

[Renagade132]

Maybe the sensors that report those trouble codes got damaged or went bad after the hit?

 

[SuperBuickGuy]

the most hated troubleshooting of all - a bad connection somewhere.

 

[abearden]

I agree with SuperBuickGuy: bad connection for the wheel speed sensor. That's the common link between ABS and TC that comes to mind.

 

[ADOR]

Thanks guys. It was indeed a bad speed sensor. The shop replaced the sensor and the warning lights went away.