Horn not working
I recently had an independent mechanic fit a new air con unit, and he was convinced it wasn't required and was an electrical fault, turns out he did something to the car while troubleshooting it and now my horn isn't working.
Volvo are saying its the clock spring and it needs to be programmed by them to fix, just looking for a second opinion is this the ECM ? and are all ECMs from 2004 on the same. They are fairly expensive and it looks like I can get one second hand. Has anyone any experience getting these ECM modules installed and programmed by an indy.
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