Fun2Fly.Cincy
Member
- :
- CX-9
Hello
I purchased my 2008 CX-9 Touring in July of 2008.
In August I installed an aftermarket trailer hitch and a plug-in Draw-tite wiring kit. It all worked fine. In October I accidentally left the moon roof open over night and the interior was rained on rather heavily. When I started the car up to move it indoors to dry out I noticed an electrical burning odor and some things stopped working. I found the fuse for the turn signals blown. I replaced it and it did not blow again. I took it to the dealer and they instantly said my trailer wiring was at fault and no warranty applied. They did not test anything. They just assumed. I chose to fix this myself. I bought the manuals from Mazda. I quickly found that the Body Control Module (BCM) is not functioning. This kills the turn signals, door locks and interior overhead lights among other things. I also have a few incorrect lights on the dash. I checked the turn signal wiring and it is not shorted with or without the trailer wiring plugged in. I am an automation engineer and I wire things for a living. I checked the turn signal circuit by putting voltage on the output of the BCM and they seem to function fine with and without the trailer wiring plugged in.
I hesitate to plug in a new BCM since I haven't yet been able to determine what killed the old one. I assume it had something to do with the water.
Any similar experiences or suggestions?
Thanks.....Frank
I purchased my 2008 CX-9 Touring in July of 2008.
In August I installed an aftermarket trailer hitch and a plug-in Draw-tite wiring kit. It all worked fine. In October I accidentally left the moon roof open over night and the interior was rained on rather heavily. When I started the car up to move it indoors to dry out I noticed an electrical burning odor and some things stopped working. I found the fuse for the turn signals blown. I replaced it and it did not blow again. I took it to the dealer and they instantly said my trailer wiring was at fault and no warranty applied. They did not test anything. They just assumed. I chose to fix this myself. I bought the manuals from Mazda. I quickly found that the Body Control Module (BCM) is not functioning. This kills the turn signals, door locks and interior overhead lights among other things. I also have a few incorrect lights on the dash. I checked the turn signal wiring and it is not shorted with or without the trailer wiring plugged in. I am an automation engineer and I wire things for a living. I checked the turn signal circuit by putting voltage on the output of the BCM and they seem to function fine with and without the trailer wiring plugged in.
I hesitate to plug in a new BCM since I haven't yet been able to determine what killed the old one. I assume it had something to do with the water.
Any similar experiences or suggestions?
Thanks.....Frank