Post #1490 I show which settings in AlfaOBD you need enabled to get the heated/vented seats to function.
Connect to your MX in Alfa, the settings are in the body computer.
Hope this helps
Removed the infotainment harness completely and plugged the 8.4 in direct to the truck.
Still same symptoms.
Hoping you guys are right and the addition of the 7 speed hvac module, bezel, and harness is the cure.
Thanks for the offer. I planned on converting anyway as I don’t like the cheap volume knob that comes with the infotainment bezel.
Just gotta figure out where to source parts.
No, it still has the 4 speed fan and bezel.
Not sure how far along you’ve followed so here is what is baffling me.
I start the truck and turn on the seat vents on high. The seat fans will run, I can hear the seat vent system working (in both seats). Then after 15 sec it will power off and...
I added. It’s an infotainment piece from before I knew anything about Alfa.
Follow on question. Is the 8.4 required for the heated/cooled seats? I removed the radio and put in my stock radio for diagnostics and the switch panel wouldn’t even light up when I pushed the buttons.
So did some more diagnostics and wire diagram tracing today.
I’m starting to think that I’m missing something on my tradesman that I need to establish communications to the CAN BUS system.
As I look at the wire diagrams from the HSM to the truck, I see that it should connect to a door module...
No luck on the new module. I’m to the point of wire tracing I think. Pulling down the schematics and will try and figure out if there is a short upstream of the heated seat module since this is doing it for both seats and for both heated and cooled functions I believe it isn’t a short in the...
Yes, I have the 8.4 radio. And yes I only turned on the driver side in those photos.
I unplugged and reconnected all the plugs, don’t see any loose connectors.
I turned the 4 codes off then back on again. Will give it overnight, but I don’t think this is the issue.
I checked the BCM for...
Thanks for the reply!
I thought the same at first but it's odo that the ventilation will actually run for 10ish seconds for the first try after starting the truck.
I pulled the data from the HSM in Alfa, any of these values look odd? Also, not sure if it’s related but when I run the diagnostic...
Gents, spent the last hour searching through this thread, awesome info.
I added heated/cooled seats to my RC 3500 Tradesman (seats from a 16 3500 Laramie)
I have the correct switch panel in and when I turn on the heated function or the ventilation function, it will turn on (I can hear the...
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