Question

I got the code C0278 on my 2003 Toyota 4runner, what needs to be replaced?

Answer 1

Hi there,

This code indicates an issue with the ABS solenoid relay. Here is a list of possible causes.

C0278 TOYOTA - Open or Short Circuit in ABS Solenoid Relay Circuit
Read more: https://www.autocodes.com/c0278_toyota.html