thomaswilliams26
S90 Terminal 15 Ignition Issue
Summary of the thread
A 2017 Volvo S90 hybrid with 175,000 km is experiencing a Terminal 15 ignition positive error, preventing it from starting. The suspected cause is an electrical fault, possibly related to a cable or plug issue. Suggestions include checking the fuse box, looking for voltage drops, and cleaning battery terminals. Ultimately, a technician diagnosed the problem as a defective cable connection, which was repaired for 95€.
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4 comment(s)
thomaswilliams26 (community.author)
Thanks! When you say check for a voltage drop, where should I focus? Did you see corrosion or damage in specific areas of the wiring harness?
guenterlehmann7
Yeah, it was a pain. Honestly, it's hard to pinpoint without proper tools. In my case, the issue was more complex than I thought. I'd say get it to a workshop; they'll diagnose it properly. Could save you a lot of time and frustration.
thomaswilliams26 (community.author)
Took it to a technician. The Terminal 15 error was a defective cable connection. Repair cost 95€.
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VOLVO
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S90
guenterlehmann7
Sounds familiar! Check the fuse box first, then look for any voltage drop. Could be a circuit break somewhere. Give the battery terminals a good clean too just in case.