Hi mate this is a normal case of water ingress into the cem and then shorting out the wiring plug is supplied by Volvo as part of a Volvo recommended repair I have carried out several of these repairs & have never had any problems after replacement plug & cem replaced. If you require the parts I have you can let me know. It is important that a new cem lid & boot are replaced at this point or the problem will only return.
|