Gabriel:Hi.
Here's how the buttons are wired to J453:
As you can see- the buttons are wired in clusters (i.e. left/right-side button banks).
Of course, anything is possible - but given the arrangement above, it's difficult to believe that a faulty J453 module could result in only the cruise control button being problematic and "the other buttons are working perfect".
However, and without knowing the results of the dealership scan - I guess it's possible!!
J453 is NOT part of the car's Component Protection regime. So yes - a second-hand (used) module from a wrecker should be OK if the part number is identical (try to source a module with the same software number (best outcome for compatibility).
What you will need to do is to replicate the module database from the old J453 into the new unit. To do this, you will need to extract this database from the old J453 BEFORE removing the module. The extraction process depends on what diagnostic device you are using - so don't forget to do this (makes life a lot easier!!).
Don
Last edited by DV52; 31-08-2021 at 11:20 AM.
Please don't PM to ask questions about coding, or vehicle repairs. The better place to deal with these matters is on-line, in the forum proper. That way you get the benefit of the expertise of the wider forum! Thank you.
Reply With Quote
Bookmarks