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Some of the repairs for C1214 require replacement of the BPMV as well as the EBCM. If the resistance between any pump circuit measured to the pump case is less than infinite then both the BPMV and EBCM have to be replaced. The wholesale cost of the BPMV unit is around $900. Use your GMPP. That way you will be covered against all possibilities.
The other reason is you get a 12 month/12K mile warranty on the repair which may last longer than the time remaining on you GMPP.
How could you go wrong with option #1? You pay $50+ less, for a brand new EBCM, and you don't have to turn a wrench on the car.
What's the downside given the two choices?
The only downside is that you end up with an OEM EBCM that could fail again. My 03 had the problem, so nothing was fixed after 01. I would still choose option #1 in this case though.
The only downside is that you end up with an OEM EBCM that could fail again. My 03 had the problem, so nothing was fixed after 01. I would still choose option #1 in this case though.
If the BPMV caused the EBCM to fail and all you repair is the EBCM you will repeat the problem again and again. ABSfixer can only replace a relay he cannot stop the new relay from suffering the same fate as the original relay.
You can't go wrong with option one although the replacement EBCM will have the same inferior relay that failed on the 1st one. The repaired units are repaired with better relays.