[Fred2.0]

Now you need to research a Ram Security Gateway Module Bypass for the Promaster, something like this - 2018+ FCA Security Gateway Module Bypass. This is new territory here, your the first, I think.

Actually you should verify that your van has the Security Gateway Module first, IIRC someone reported that it was behind the glove box or next to the steering column.

How does it look like? How can I verify it?

 

[phil]

I haven't seen any photos of one on a Promaster and I assume a Promaster mechanic at a dealer would know.

 

[Fred2.0]

Visited Walmart and Autozone. And there are few obd connectors. I don’t which one is suitable for my van. Are they all the same or they gonna work with limited vehicles? Maybe they have some different interfaces? How should I choose? Who knows? And they kinda expensive: $40-$65 !!!
Should I order from amazon instead? Who has experience working with them?

 

[Fred2.0]

You would need Bluetooth obd reader a yellow obd cable and the alfaobd app. If you want to do it yourself.

By the way, what is yellow obd cable and why do i meed it?

 

[Fred2.0]

Found the dealership. They said they can enable the cruise control just for $129

 

[Fred2.0]

Can anybody tell me which fuse responsible for cruise control in ram promaster 3500?

 

[Fred2.0]

Ordered Rostra CC from Amazon

 

[filmcan]

@Fred, Thanks for all your research. I trust your attention to detail. Please let us know how the Rostra worked out. Some people have reported problems with the Rostra. Thanks again