ellarichter6
Peugeot 1007 Brake Light Failure
Summary of the thread
The brake lights on a 2009 Peugeot 1007 diesel failed, displaying an error message on the infotainment system. The issue was suspected to be related to the brake light switch circuit. After checking continuity and voltage, the problem persisted. A closer inspection revealed a small piece of debris causing a short circuit in the connector. Cleaning the connector resolved the issue, restoring the brake lights and clearing the error message.
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4 comment(s)
ellarichter6 (community.author)
Thanks. I've visually inspected the connector and wiring, but I didn't see any corrosion or damage. Could you tell me more about how you troubleshooted your Opel Astra, especially any voltage or resistance checks you did?
paulheld9
I spent ages checking fuses and relays. I even swapped the bulbs! Eventually, I took it to a workshop. They plugged in their diagnostic tool, confirmed it was the switch, and replaced it. It was the quickest and easiest way to deal with it. Maybe it's worth getting a second opinion?
ellarichter6 (community.author)
Thanks for the suggestion. I looked at the connector more closely with a magnifying glass. There was a small piece of debris causing a short circuit. After cleaning the connector, it seems to be working now. The error message is gone, and the brake lights are working. Repair cost: 0€.
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PEUGEOT
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1007
paulheld9
Hey! I had a similar issue on my old Opel Astra, though it was a petrol engine, not diesel. The symptoms you describe – brake light failure and the error message – sound familiar. In my case, it was a faulty brake light switch. Did you check the connector and wiring leading to the switch itself? Sometimes, it’s not the switch but a corroded connector or a frayed wire causing the problem.