teamzr1
Supporting vendor
There is a common C5 issue across the board of all model years of C5 related to ABS, traction control, etc
Many many owners have had this problem and either got it shoved by a dealer charging $2,000 (US) to replace the ETBCM controller
or maybe half that for a used one
In almost all cases the problem is a $2 relay
To save weight and money GM uses all over the controllers a simple very small relay
Over time, heat and bad roads this relay either is dead or stuck in one position
If you or a friend can swing a soldering iron, the relays can be bought via cyberspace for about $2 ( I buy several so have spares and no one uses these anymore )
Many many owners have had this problem and either got it shoved by a dealer charging $2,000 (US) to replace the ETBCM controller
or maybe half that for a used one
In almost all cases the problem is a $2 relay
To save weight and money GM uses all over the controllers a simple very small relay
Over time, heat and bad roads this relay either is dead or stuck in one position
If you or a friend can swing a soldering iron, the relays can be bought via cyberspace for about $2 ( I buy several so have spares and no one uses these anymore )
- Best is pull off the top radiator hose to get free room for the ETBCM controller is below that
- remove about 6 screws from mount and pop controller off
- Put that on a table and take the screws off that hold the 2 case halves together.
- It will be a bit of bitch to then crack the 2 apart as there is sealant between the 2
- Once open notice below in my image, the white colored small square relay
- clean any crap around it and un-solder the 4 legs and take out.
- take new relay and clips those 4 leads down so not as long and install it same direction as old one
- Solder those 4 legs and BTW check if anything else needs to be re-flowed with solder.