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Hi! I'm going to retrofit the alarm and motion sensor to my 2018 XC40.
I thought it had an alarm because the red light was flashing, but no… there's neither an alarm nor a sensor. The sensor mounted in the dome light has factory wiring, so it's just a matter of installing it, but the alarm under the windshield wipers has no wiring at all, and I'll have to make some myself.
I know it has three wires:
-red (fuse 30)
-brown (negative)
-purple???
Can anyone tell me where to connect the brown and purple wires?
Posts: 11
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Joined: Feb 2025
01-26-2026, 10:34 AM
(This post was last modified: 01-26-2026, 10:40 AM by Szigi.)
(01-25-2026, 10:06 PM)trasgu_driver Wrote: Hi! I'm going to retrofit the alarm and motion sensor to my 2018 XC40.
I thought it had an alarm because the red light was flashing, but no… there's neither an alarm nor a sensor. The sensor mounted in the dome light has factory wiring, so it's just a matter of installing it, but the alarm under the windshield wipers has no wiring at all, and I'll have to make some myself.
I know it has three wires:
-red (fuse 30)
-brown (negative)
-purple???
Can anyone tell me where to connect the brown and purple wires?
Negative wire can be wiered anywere where you find a grounding point. Purplue is the lin cable, you will need to wire it to the CEM, the hard part will be to go past the firewall
I hope it helps and good luck!
Szigi
Posts: 102
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Joined: Feb 2024
Posts: 6
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Joined: Jan 2026
Yesterday, 09:57 AM
(This post was last modified: Yesterday, 10:00 AM by trasgu_driver.)
(01-26-2026, 12:22 PM)Marcp Wrote: Hi, this post explains everything.
https://forums.spaycetech.com/showthread...100&page=3
Hi mate! Thanks a lot for the info, it's really helpful for getting an idea! But...do you know where the CEM module is located on the XC40? And will the Orbit configuration be the same as on your XC60?
(01-26-2026, 10:34 AM)Szigi Wrote: (01-25-2026, 10:06 PM)trasgu_driver Wrote: Hi! I'm going to retrofit the alarm and motion sensor to my 2018 XC40.
I thought it had an alarm because the red light was flashing, but no… there's neither an alarm nor a sensor. The sensor mounted in the dome light has factory wiring, so it's just a matter of installing it, but the alarm under the windshield wipers has no wiring at all, and I'll have to make some myself.
I know it has three wires:
-red (fuse 30)
-brown (negative)
-purple???
Can anyone tell me where to connect the brown and purple wires?
Negative wire can be wiered anywere where you find a grounding point. Purplue is the lin cable, you will need to wire it to the CEM, the hard part will be to go past the firewall
I hope it helps and good luck!
Thanks a lot for the info…do you know where the CEM module is located on the XC40?
Posts: 11
Threads: 3
Joined: Feb 2025
(Yesterday, 09:57 AM)trasgu_driver Wrote: (01-26-2026, 12:22 PM)Marcp Wrote: Hi, this post explains everything.
https://forums.spaycetech.com/showthread...100&page=3
Hi mate! Thanks a lot for the info, it's really helpful for getting an idea! But...do you know where the CEM module is located on the XC40? And will the Orbit configuration be the same as on your XC60?
(01-26-2026, 10:34 AM)Szigi Wrote: (01-25-2026, 10:06 PM)trasgu_driver Wrote: Hi! I'm going to retrofit the alarm and motion sensor to my 2018 XC40.
I thought it had an alarm because the red light was flashing, but no… there's neither an alarm nor a sensor. The sensor mounted in the dome light has factory wiring, so it's just a matter of installing it, but the alarm under the windshield wipers has no wiring at all, and I'll have to make some myself.
I know it has three wires:
-red (fuse 30)
-brown (negative)
-purple???
Can anyone tell me where to connect the brown and purple wires?
Negative wire can be wiered anywere where you find a grounding point. Purplue is the lin cable, you will need to wire it to the CEM, the hard part will be to go past the firewall
I hope it helps and good luck!
Thanks a lot for the info…do you know where the CEM module is located on the XC40?
I have a V60 and the CEM is located in the leftside of the dashboard. You can peek at the footwell air vents if yours is there. It is mounted kinda high.
Szigi
Posts: 102
Threads: 2
Joined: Feb 2024
Hello,
Yes, it is located on the left-hand side, above the pedals, bolted to the side panel. Yes, the configuration in ORBIT is the same. At this link you can download the XC40 diagrams.
https://static.nhtsa.gov/odi/tsbs/2023/M...5-9999.pdf
Thank you