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Transit Electrical Issue

Hey, I'm having a weird electrical issue with my 2018 Ford Transit diesel. It's got about 142k km on the clock. The garage is saying there's a continuous plus interruption on Terminal 30. Basically, it starts really poorly. They think it's a heavily discharged or defective battery. Any ideas what could cause this? Could it be a fuse box issue or maybe a voltage drop somewhere?

A 2018 Ford Transit diesel is experiencing poor starting due to a continuous plus interruption on Terminal 30, suspected to be caused by a heavily discharged or defective battery. The issue might stem from a parasitic drain, possibly due to a faulty circuit breaker or other electrical faults. The solution involved replacing the faulty circuit breaker and the battery, resolving the starting problem.

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4 comment(s)

Sounds like a pain! I had a similar problem with my old Vauxhall Astra a few years back. Same symptoms – struggling to start. I was chasing a phantom drain for weeks. Did they check for parasitic drain on the battery? Could be something keeping the circuit alive even when the van is off.

Parasitic drain, huh? I'll have to ask them about that. So, with your Astra, was it actually a parasitic drain causing the issue, or something else entirely? And where did you find it?

Yeah, for me, it turned out to be a faulty aftermarket alarm system that was slowly draining the battery. In your case, could be anything from a bad module to dodgy wiring. Honestly, electrical gremlins can be a nightmare. I would take it to a workshop.

Thanks for the advice! You were right, it was a parasitic drain! Ended up being a faulty circuit breaker. Replaced it and got a new battery since the old one was toast from being constantly drained. Cost me about 290€. Appreciate the help!

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FORD

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TRANSIT