Rain sense wipers

[ralphkw1]

Anybody know what hardware and wiring is needed for the alphaobd settings to enable rain sensing wipers? I have this configuration on my rearview currently (see photo). I have a 2020 2500 Bighorn with level 2 package, tow mirrors, snow plow, auto sense rearview.

 

[loveracing1988]

Did you swap out the windshield? I've seen where someone added it to a standard windshield and it didn't function.

 

[Jimmy07]

Anybody know what hardware and wiring is needed for the alphaobd settings to enable rain sensing wipView attachment 15295ers? I have this configuration on my rearview currently (see photo). I have a 2020 2500 Bighorn with level 2 package, tow mirrors, snow plow, auto sense rearview.

What is the part number on this sensor?

Is there a small square “window” on the windshield frit pattern in front of it so it can look through the windshield? It looks like you already have the hardware.

 

[ralphkw1]

I'll have to look at the part number. Traveling for the next 3 weeks so won't be able to look for a while.

 

[ralphkw1]

Did you swap out the windshield? I've seen where someone added it to a standard windshield and it didn't function.

No. The photo is from the stock windshield.

 

[Jimmy07]

I'll have to look at the part number. Traveling for the next 3 weeks so won't be able to look for a while.

I can only deduce that’s the rain sensor. There’s nothing else it can be on an HD Ram, as that is exactly what the part looks like and there is only one part number for it. I do know that on the 5th gen 1500s, there are two part numbers for that sensor- one is humidity sensing only (because the 1500 uses a different type of AC compressor that takes humidity on the windshield into account for auto temp control), and the other is a humidity and rain sensing sensor. That’s why I’m curious on your part number. Are you sure you don’t have the rain sensing wipers feature? You would go into the radio settings > mirrors and wipers, and there would be a selection to turn rain sense on or off. If you’re sure you don’t have the feature, enable these settings in AlfaOBD and see if they start working:
VehConfig 2: Rain Sensor Present- YES
2014 CBC Config I/O & Feat: Humidity Sensor Long Present- YES
LIN & Misc: Humidity Rain Light Sensor Present- YES
CustSetMenu 1: Rain Sensitive Wipers CSM Present- YES