Thread: D2a driver's door lock actuator issue

sierrafery will be along soon. He knows these things.

Originally Posted by Tins

sierrafery will be along soon. He knows these things.

He does indeed JT. The resident D2 electrical guru.

Cheers mate.

Hi, just confirm the lock/unlock motor is not working while the superlock motor does? ...if it's so the problem is with the circuit to the actuator's connector pin 4 cos to pin 7 goes the common wire for both motors which if the other motor works means it's OK... continuity checks are needed: between pin 4 and C0733 pin 5 and if there is continuity then check from C0582 pin 2 to 0733 - 5 if there is continuity all the way the problem is within the fusebox(they used to suffer from corrosion)

PS.. be aware that at the door connector pin 4 and at C0733 pin 5 should be KR(pink/red) wire like at 0582-2 at the fusebox but there are cases when it's orange then at 0733 one side will be KR the other orange

Originally Posted by sierrafery

Hi, just confirm the lock/unlock motor is not working while the superlock motor does? ...if it's so the problem is with the circuit to the actuator's connector pin 4 cos to pin 7 goes the common wire for both motors which if the other motor works means it's OK... continuity checks are needed: between pin 4 and C0733 pin 5 and if there is continuity then check from C0582 pin 2 to 0733 - 5 if there is continuity all the way the problem is within the fusebox(they used to suffer from corrosion)

PS.. be aware that at the door connector pin 4 and at C0733 pin 5 should be KR(pink/red) wire like at 0582-2 at the fusebox but there are cases when it's orange then at 0733 one side will be KR the other orange

Hi mate. Yes superlocking servo is working but not lock/unlock. Many thanks i will check this out. If there is corrosion at the fuse box he can try to clean it and otherwise try a replacement fuse box. If he needs a replacement fuse box would he need a Nanacom to enable the new fuse box to play nicely or is it a straight swap? Cheers

Originally Posted by ozscott

Hi mate. Yes superlocking servo is working but not lock/unlock. Many thanks i will check this out. If there is corrosion at the fuse box he can try to clean it and otherwise try a replacement fuse box. If he needs a replacement fuse box would he need a Nanacom to enable the new fuse box to play nicely or is it a straight swap? Cheers

The fusebox must come from same modell(facelift or not), disconnect battery before the swap(do not unplug/plug that fusebox with battery connected) then after the swap and battery reconnection turn ignition to second position and let it so for 5 minutes(dont crank it at that stage, the red immobiliser LED might be on for a while, neglect it), after 5 minutes ignition off/on and he can crank it...that's the procedure to resynk the IDM with the BCU, nanocom is not needed.

It doesn't take much corrosion in the fusebox to cause all manner of weirdness ( I have a thread on here somewhere ). I was able to merely clean mine up using appropriate electronic cleaners.

IMG_5875.jpgIMG_5876.jpgIMG_5878.jpg

Yes, it only took that much. I thought my BCM was probably dead due to the number of issues, which continued to get worse. The fusebox is actually quite easy to remove and open. Hopefully this is all that's wrong for you. Good luck.