O/D OFF light problems
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Blind spot light in mirrors doesn't turn off 
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2016 Renault Megane Talisman 1.6dCi 131HP 100000 miles
The blind spot in the mirrors doesn't function correctly, but is turned ON. Sometimes it even stays on after the car is turned off and the rear view mirrors are folded. The problem is usually in the OBD port. After the service is done and the OBD Tester is connected several times, the wiring behind the OBD port can get loose and this results in the Blind spot light issue.
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Best answer (according to macesn)
MA
Remove the plastic cover for the fusebox above OBD port (the drivers foot area) and this gives you access to the wiring harnes behind the OBD port. Wiggle the harness and use zipties if neccesary to fix the wires in the position that re-connects the GROUND or just fixes some wierd connection. This usually fixes the blind spot error.
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CommentCar wont work. Odb faulty, immobilizer wont disarm, keycard not workin
2015 Renault Megane 102000 miles
Hiya all, dunno if anyone has any suggestions. Renault Mégane Mk3 2015 1.5 diesel won’t lock or unlock on keycard, won’t start, and OBD port isn’t working.
The other day the car locked as i walked away, since then i can only use manual key to open lock. The keycardr eader says keycard not recognised, its always said that, but the car used to start with/without the key card inserted. Now nothing. I've changed battery on keycard no result.
Odb wont connect to anything, spoke to one mechanic and he said its like my car had a stroke.
Many thanks
Spike
---+ Update: Battery checks out fine.
The other day the car locked as i walked away, since then i can only use manual key to open lock. The keycardr eader says keycard not recognised, its always said that, but the car used to start with/without the key card inserted. Now nothing. I've changed battery on keycard no result.
Odb wont connect to anything, spoke to one mechanic and he said its like my car had a stroke.
Many thanks
Spike
---+ Update: Battery checks out fine.
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