Operation CHARM: Car repair manuals for everyone.

Procedures



Caution: Programming/resetting resistance for heated oxygen sensor

WARNING: When replacing the HO2S perform the following:
- A code clear with a scan tool, regardless of whether or not a DTC is set
- HO2S heater resistance learn reset with a scan tool, where available

Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S failure.