Traveller Terminal 15 Ignition Fault

I own a Peugeot Traveller and had almost the same problem a few months back. Terminal 15 is the switched positive power supply from the ignition. The error and symptoms sound familiar. Check the wiring harness around the battery and starter motor first. A loose connection there can cause issues. Did you check the fuses? Any other electrical problems before this?

Thanks, I visually checked the wiring harness, but I'll look closer around the battery and starter motor. Was the issue consistent, or did it happen now and then? Which fuses did you check? Want to make sure I'm not missing something before diving in.

It started now and then, then got worse. I checked the fuses for the ignition and engine control unit (ECU). But Terminal 15 means you should check all the fuses in the fuse box. If the wiring looks okay and you're not good with electrics, take it to a workshop. Could save time and stress. Sounds like my issue. They'll likely say it's a cable or plug connection, costing around 95€.

Thanks for the advice. I checked the wiring harness again and found a corroded connector near the starter motor. Cleaned and re-secured it, and it started fine, error code gone. The 95€ estimate was spot on. Your experience really helped.