| 03-18-2024, 09:43 PM | #1 |
|
Registered
0
Rep 4
Posts |
Trying to hardwire radar, am I doing something wrong?
2021 M550i, I plugged red into red and black into brown, yet my radar does not turn on when I plug it in. Am I supposed to be plugging into the magenta wire harness or only the black one? I shined a flashlight at my mirror to confirm it has auto dimming function.
Thanks |
| 04-28-2024, 10:16 AM | #2 |
|
New Member
0
Rep 11
Posts |
Hello, did you end up figuring this out? I would connect to a 12V battery to verify the cable works. If so, then connect a multimeter to your pins when the car is on and verify power and ground that way. If that is fine, then verify you have good contact points.
|
|
Appreciate
0
|
| 04-28-2024, 08:10 PM | #3 |
|
Lieutenant
 
266
Rep 482
Posts |
Anytime you doing anything like this you need a multimeter set to DC to measure what wires have 12Vdc. It's not a guessing game. Double check which wire has power.
__________________
2018 BMW M550i | BM3 stg 1 | Resonator Delete (X-pipe) | Dark Graphite Metallic
|
|
Appreciate
0
|
