Hoping someone can help, I have just bought an Astra J se on a 10 plate. Checked the central door locks and although the key fob will lock and unlock the boot along with activating and deactivating the alarm, none of the passenger doors will lock or unlock. I can hear the relay activate in the boot. There is no bong sound when you open the door having removed the key from the ignition, I have checked fuse 10 in the glove box and this is not broken. There is 3 fault codes as follows
B3125 Driver Door Only Unlock Circuit, short circuit to ground, permanent
B3130 Doors Unlock Circuit, short circuit to ground, permanent
B3135 Doors Lock Circuit, short circuit to ground, permanent
Is there any other fuses I have missed or can anyone think of anything else.
That's what I also suspected, however I took the rubber boot off and removed the connected had a good look and it looked ok, appreciate the wire could be broken inside, I did spray it with contact cleaner. Also every other function on the door is working. Have not lead in separate power supply to the lock though. Do you know if there is more than one fuse on the astra j for the door locks?
Did you check the drivers door loom, it could also be the lock motor itself in the drivers door thats causing the system to fail......B3125 Driver Door Only Unlock Circuit, short circuit to ground, permanent
andyl. have you had a look in Haynes book of lies there is a wiring diagram in the rear of the book, well there is for the Zafira I don't know about the Astra J though..
Strangely bizarre went to remove the door card tonight and start to have a look. pressed the unlock button to take off the alarm and the central locking pings into action. Will give it a few days to see how it goes.
Annoyingly, the locks stopped working almost straight away, I have changed the door lock and again same as before. the alarm will work perfectly turning on and off just the central locking refuses to work, any ideas????
Water ingress to the BCM would be my best guess, its located under the heater in the middle of the car, accessed by removing the driver side footwell side panel, where your left foot is,... there is a rubber drain tube that runs from the heater, it get perished and drips water onto the BCM which then causes all sorts or electrical gremlins, with all the rain were having its plausible for this to have happened.
Astra J > Vauxhall Workshop Service and Repair Manuals > HVAC | Heating, Ventilation, and Air Conditioning | Repair Instructions | Air Conditioning Evaporator and Blower Module Drain Hose Replacement
Astra J > Vauxhall Workshop Service and Repair Manuals > Power and Signal Distribution | Data Communications | Repair Instructions | Body Control Module Replacement
If it has water damage then a replacement is not plug and play, easiest and quickest route is buy new and have it programmed by Vauxhall or a Vauxhall specialist.
Andy, still having issues with my astra j, fault just goes on and off by itself, can i put in an exact replica in plug and play ie from a 2010 1.6 se manual ??
You can buy these wiring looms off ebay I think there is one chap making them, please don't ask me his seller's name as I don't know it, but spend a few minutes searching for door wiring looms it should pop up somewhere.
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