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Premium Member
190 Posts
Discussion Starter #1 (Edited)
I'm starting this discussion of the Smart Access cable installation in case others are looking for info. This cable is needed for '18+ Mopar vehicles in order to read (and write w/ an unlocked PCM) the OBDII port using a HPtuners device.

Disclaimer: The smart access cable should be removed if you are taking vehicle to a dealer for warranty/repair as it would likely block their computers from reading fault codes!

It took me about 30mins to remove the instrument cluster bezel, unmount radio & security module, and install the cable.


The instrument cluster bezel was carefully removed w/ a plastic trim tool, then radio was unmounted. I did not disconnect cables from radio. I did disconnect neg battery terminal as an extra precaution.

2 security module mount location.jpg

Security module as seen looking down the radio hole. It is mounted w/ 3ea 1/4" nut screws. Used a small ratchet to remove.

3 security module connectors.jpg

The yellow/pink connector is where the smart cable plugs into.


Another view of the security module (flipped 180 degrees).


Smart access cable and the (4) radio and (3) security module screws.

2015 RT 5.7 M6
7,507 Posts
This should be a sticky. I see folks on HP tuners asking how to install this. Might be more as warranties are starting to expire on the +2018s.

LoL...I have the same red dice on my RT.
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