Insignia Terminal 15 Ignition Circuit Error

Sounds familiar. I had a similar issue with my old Peugeot a while back. Car wouldn't start, and it turned out to be a voltage drop somewhere in the system. Did you check the starter solenoid? I'd start there.

Thanks. Could you elaborate on where exactly the voltage drop was located in your Peugeot? Knowing that might give me a starting point for investigating the Insignia. Is there a specific area of the starter solenoid that I should be inspecting for potential issues?

Honestly, I can't remember exactly where the voltage drop was, it was a while ago. I messed around with it for a bit but eventually I just took it to a workshop. It's probably best if you do the same.

I appreciate the input. After considering the error codes, I've decided to take it to a trusted mechanic. The issue was, as suspected, a defective plug connection. Repair cost was 95€ Thank you!