Central locking problem

jiwilson · Sep 2nd, 2018, 08:16

I have a obscure central locking problem. It occurs intermittently and I cannot detect any pattern.

Mostly the remote central locking works as it should. All doors lock and mirrors wind in, indicators flash as they should. The anti theft arms correctly.

But, occasionally, only the nearside doors and the boot locks. The anti theft arms correctly.
However the offside doors do not lock and the mirrors do not move.

If I leave the car to stand, do nothing to it, the functionality mysteriously returns.

Anyone got any idea of where I start???

Thanks in advance.

Ian Wilson

ma70 · Sep 2nd, 2018, 13:08

First port of call with something intermittent like this would have to be Vida/Dice and see what if any codes are stored.

Other than this, one possibility I'd look towards is maybe the DDM (prise the driver's window switchpack up and that's it) since when we bought our car the module was unplugged and this caused the mirrors and OS locks not to function. Or the wiring between driver's door and body, this can fatigue with age although not heard of it happening to a door on Volvo so far, only tailgates. So if you can't get the codes read then I'd suggest checking/wiggling the connector for the DDM firstly.

EDIT- one more thing, what's the battery voltage when you check it after the car has stood overnight? A failing battery can cause some mayhem with CAN networked cars. Not as likely as a bad connection IMO but worth a check to rule it out.

Theeggman · Sep 2nd, 2018, 14:23

You may get more response if you get this thread moved to the correct section. This one covers up to 2007.

ma70 · Sep 2nd, 2018, 17:12

Oh, it's a P3 then? well same things still apply regarding the battery voltage and code reading. Not sure if the DDM works the same way though.

jiwilson · Sep 3rd, 2018, 06:53

Thanks for the replies. Trying them now. Will (Or try!) to move thread....

jiwilson · Sep 3rd, 2018, 07:17

Admin.

Could you please delete this thread. I have restarted it in the correct group. Thank you

Sep 2nd, 2018, 08:16	#1
jiwilson retired and loving it! Last Online: Jul 21st, 2022 21:24 Join Date: Jul 2011 Location: Salisbury	Central locking problem I have a obscure central locking problem. It occurs intermittently and I cannot detect any pattern. Mostly the remote central locking works as it should. All doors lock and mirrors wind in, indicators flash as they should. The anti theft arms correctly. But, occasionally, only the nearside doors and the boot locks. The anti theft arms correctly. However the offside doors do not lock and the mirrors do not move. If I leave the car to stand, do nothing to it, the functionality mysteriously returns. Anyone got any idea of where I start??? Thanks in advance. Ian Wilson __________________ XC70 SE Lux 2008, Champagne (ish) VIN YV1BZ714681016186

Sep 2nd, 2018, 13:08	#2
ma70 Curmudgeon with a turbo Last Online: Jul 1st, 2020 17:48 Join Date: Nov 2014 Location: Congleton	First port of call with something intermittent like this would have to be Vida/Dice and see what if any codes are stored. Other than this, one possibility I'd look towards is maybe the DDM (prise the driver's window switchpack up and that's it) since when we bought our car the module was unplugged and this caused the mirrors and OS locks not to function. Or the wiring between driver's door and body, this can fatigue with age although not heard of it happening to a door on Volvo so far, only tailgates. So if you can't get the codes read then I'd suggest checking/wiggling the connector for the DDM firstly. EDIT- one more thing, what's the battery voltage when you check it after the car has stood overnight? A failing battery can cause some mayhem with CAN networked cars. Not as likely as a bad connection IMO but worth a check to rule it out. __________________ (current) '06 P2 S80 D5 SE LUX, Met. Gold/Black leather, 200k (past)'99 P1.5 V40 SE 1.8 (1731cc), Metallic Peacock Blue-Green, Black Leather, Winter Pack. 101k (past) '88 340 GL 1.7, gifted to me with "slipping clutch" that was a sticky linkage

Sep 2nd, 2018, 14:23	#3
Theeggman Senior Member Last Online: Aug 5th, 2019 17:22 Join Date: Sep 2014 Location: Okehampton	You may get more response if you get this thread moved to the correct section. This one covers up to 2007. __________________ Tim. 2005 XC70 Auto. Now Sold.

Sep 2nd, 2018, 17:12	#4
ma70 Curmudgeon with a turbo Last Online: Jul 1st, 2020 17:48 Join Date: Nov 2014 Location: Congleton	Oh, it's a P3 then? well same things still apply regarding the battery voltage and code reading. Not sure if the DDM works the same way though. __________________ (current) '06 P2 S80 D5 SE LUX, Met. Gold/Black leather, 200k (past)'99 P1.5 V40 SE 1.8 (1731cc), Metallic Peacock Blue-Green, Black Leather, Winter Pack. 101k (past) '88 340 GL 1.7, gifted to me with "slipping clutch" that was a sticky linkage

Sep 3rd, 2018, 06:53	#5
jiwilson retired and loving it! Last Online: Jul 21st, 2022 21:24 Join Date: Jul 2011 Location: Salisbury	Thanks for the replies. Trying them now. Will (Or try!) to move thread.... __________________ XC70 SE Lux 2008, Champagne (ish) VIN YV1BZ714681016186

Sep 3rd, 2018, 07:17	#6
jiwilson retired and loving it! Last Online: Jul 21st, 2022 21:24 Join Date: Jul 2011 Location: Salisbury	Admin. Could you please delete this thread. I have restarted it in the correct group. Thank you __________________ XC70 SE Lux 2008, Champagne (ish) VIN YV1BZ714681016186

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