Volvo Troubleshooting Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.working after noon till just after midnight.
My recommendation is to try new batteries in your key fobs, then have them reprogrammed to the vehicle. This would be my first step prior to looking into wiring issues or a concern with modules (central electronics module).
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I will opt out and let another see if there are more steps you can do DIY.