XC90 central locking issue.

Caddy1985 · May 22nd, 2022, 19:23

Hi all, I’m looking for some help/advice and to see if anyone has had any similar problems. I installed a new stereo in my recently acquired 2008 XC90. I fitted a dab aerial and also the harness to allow steering controls to be retained. All works great. However, I now can’t lock the car with the fob button and the passenger door won’t lock/unlock with the others when I use the key, not will the window go down with either passenger or drivers button. May just be coincidence, but I’m ask wondering if I could have disturbed something. It was working before and during the installation. I have noticed the passenger door seemed to lock and unlock when opened sometimes before it stopped working.

Cheers

Ant

SwissXC90 · May 23rd, 2022, 18:55

The easiest way is to connect VIDA and read the status of all doors and boot lid and bonnet (if alarm is fitted), and also actuate each doors lock individually. you very quickly see what works and what doesn't.

The harder way is to use a multimeter and check each lock's signal wire to the CEM. A lock more mucking about with wiring diagrams and hard-to-access CEM wire connectors.

The hardest way is to replace parts at random, which is like buying a lotto ticket. You might win....

Jab11041954 · Jan 10th, 2023, 21:42

Recently had to replace roof antenna on my XC90 Mk2 D5,Main Dealer job,,,OUCH.. Comms failed with Key Fobs and central lock system, Lads at main dealer said roof antenna`s are very sensitive !!

May 22nd, 2022, 19:23	#1
Caddy1985 New Member Last Online: Aug 8th, 2023 16:22 Join Date: May 2022 Location: Mansfield	XC90 central locking issue. Hi all, I’m looking for some help/advice and to see if anyone has had any similar problems. I installed a new stereo in my recently acquired 2008 XC90. I fitted a dab aerial and also the harness to allow steering controls to be retained. All works great. However, I now can’t lock the car with the fob button and the passenger door won’t lock/unlock with the others when I use the key, not will the window go down with either passenger or drivers button. May just be coincidence, but I’m ask wondering if I could have disturbed something. It was working before and during the installation. I have noticed the passenger door seemed to lock and unlock when opened sometimes before it stopped working. Cheers Ant

May 23rd, 2022, 18:55	#2
SwissXC90 Premier Member Last Online: Mar 20th, 2024 18:26 Join Date: Jan 2016 Location: Cross Country	The easiest way is to connect VIDA and read the status of all doors and boot lid and bonnet (if alarm is fitted), and also actuate each doors lock individually. you very quickly see what works and what doesn't. The harder way is to use a multimeter and check each lock's signal wire to the CEM. A lock more mucking about with wiring diagrams and hard-to-access CEM wire connectors. The hardest way is to replace parts at random, which is like buying a lotto ticket. You might win.... __________________ XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.

Jan 10th, 2023, 21:42	#3
Jab11041954 New Member Last Online: Jan 25th, 2023 22:24 Join Date: Aug 2017 Location: Winsford	XC90 Central Locking Recently had to replace roof antenna on my XC90 Mk2 D5,Main Dealer job,,,OUCH.. Comms failed with Key Fobs and central lock system, Lads at main dealer said roof antenna`s are very sensitive !!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)