geoffbeaumont Posted May 16, 2021 Share Posted May 16, 2021 Guessing this is going to be one for a Vauxhall forum, but in case anyone on here has any ideas... The locks on my Zafira C (Tourer) went on the blink yesterday. That doesn't seem to be uncommon, usually down to broken wires, but the symptoms don't appear to add up. I can unlock the drivers door with fob or key, but the passenger doors remain deadlocked. So far that fits with a broken or shorted wire. However, everything I've read expects the tailgate and fuel filler to also remain locked as they're further out on the same loom - and they are both unlocking. Also, the lock buttons on the passenger doors are popping up. If it was one door I'd go with a mechanical failure, but all three at the same time points to an electrical fault somewhere central. Apparently there's a drain from the HVAC that can perish and leak on the BECM causing weird electrical issues including with the locks - but I can't see how you'd get quite this behaviour. There's also a wire in the drivers door which can short to ground causing the system to fail to sense that the drivers door is unlocked and not unlock the other doors - not sure if that's only if you have the central locking set to only open the drivers door on first press and the others on a second (I don't - it's set to open all), but I think if it was that the boot and fuel flap should stay locked too? Quote Link to comment Share on other sites More sharing options...
geoffbeaumont Posted May 21, 2021 Author Share Posted May 21, 2021 For the sake of anyone with the same issue who stumbles across this - the issue was a failed lock control module in the driver's door. Quote Link to comment Share on other sites More sharing options...
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