Vectra Battery Drain Electrical Issue

Hi, I'm having a weird electrical issue with my 2005 Vauxhall Vectra diesel. The battery keeps draining, and it's now struggling to start. I've been told the 'terminal 30 continuous plus' is interrupted. Could a voltage drop cause this? Any ideas where to check? Mileage is 55434 km.

4 comment(s)

I had something similar on my Vectra. Check the fuse box and wiring harness first. It might be a bad connection or a short somewhere. Is it throwing any error codes?

Cheers! Which fuse box exactly, and any specific areas on the wiring harness I should focus on? And what exactly was the error code on your car?

The one under the bonnet, near the battery. I'm no expert, but my mechanic said it was a dodgy circuit breaker in there causing a constant drain. Honestly, I'd get it to a workshop; could be tricky to diagnose otherwise.

Thanks for the advice! Took it to a garage, and it turned out to be a defective battery causing a heavy discharge plus a wiring issue like you suggested. Repair cost was 290€ Appreciate the help!

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