Chrysler/Jeep/Dodge Skim Repair Alternatives

Thomas Technician Idaho Posted   Latest  
Unsolved
Driveability
Security
2006 Jeep Commander Limited Premium 5.7L (2 EZB) 5-spd (45RFE) — 1J8HG58236C168555
Vin Mismatch/Security System Activates While Driving

Good morning/afternoon DN. This is my first time posting and am hoping to get some insight from the wealth of knowledge here. Just a bit of my back ground I am a current ASE Master and FCA master with a dealership and have access to all the factory scan tools. I also service the independent shops for factory programming. Here is my dilemma. As FCA continues its supply chain issues and discontinues parts repairs become more challenging. I currently have 4 vehicles ( I used the Jeep Commander as one of my examples) that all have SKIM/security module issues. All the vehicles are CAN Bus Vehicles. FCA no longer produces parts for them. I have done quite a bit of research on alternative repair options. Does anyone have a good work around for the SKIM? I know of some companies that can flash the PCM and delete the SKIM option. Then I would unplug the SKIM module and the vehicle would forget the SKIM configuration. However the draw backs are the Security light may come on, TPMS light on (If equipped) , and RKE no long functions ( which I can work around with a good quality remote start start or keyless entry system). How ever the major draw back is the Front control module not receiving the disarm request for the Alarm system. If I swap the PCM,SKIM, FCM and ORC which I have done in the past everything will work as long as the option codes are the same. I know I am not the only person to run into this problem. What have you all seen and do you have any other suggestions? Is there a piece of equipment I can purchase to erase the SKIM information in a used module and then rewrite the correct VIN#? Thank you all in advance and truly appreciate the wealth of knowledge here.

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Jeffrey Mobile Technician
Illinois
Jeffrey
 

Why not just learn the security to the replacement part! PCM wise is really easy. I use a Autek to pull skim codes. Now if your raplacing a pcm that has SKIM to a car that doesn’, Drewtech has ways of disabling the SKIM. Now replacing SKIM modules gets a bit trickier. Would need to clone those modules. Keenan Laws has some really nice software that can be purchased thru Michael Christopherson…

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Thomas Technician
Idaho
Thomas
 

I agree Jeffery. PCM is really easy. The Autel allows me to write whatever VIN I want into the PCM. However with the SKIM its much more complicated. I can run the WCM replacement routine but won't let me overwrite the VIN . This is where I get the VIN conflict between the WCM and PCM. PIn numbers are not a big deal for me since I have LSID access for FCA at the dealer level. Thanks for taking…

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Robert Technical Support Specialist
New York
Robert
 

Disconnect SKIM from vehicle new PCM program and write VIN and mileage should be fine. If the SKIN is not connected it will not learn to look for SKIM

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Jeffrey Mobile Technician
Illinois
Jeffrey
 

So as far as the SKIM modules go, cloning them with adromeda research labs or VVDI prog works very well

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Arsalan Mechanic
District of Columbia
Arsalan
 

Just a question, Is it required to remove a SKIM module from ignition housing before installing a NON-SKIM module????? I'm asking this because I ordered a PCM online (Can't remember the company name) once I installed it they wanted me to remove the SKIM module before the vehicle can be started.

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Robert Technical Support Specialist
New York
Robert
 

Yes the SKIM has to be disconnected before plugin a non skim pcm,

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Arsalan Mechanic
District of Columbia
Arsalan
 

Got it, Thank You

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Thomas Technician
Idaho
Thomas
 

You do not have to remove the skim module- Just unplug it. I would tape the harness back and tag it not to plug it in. If it gets plugged in then the PCM will re-enable the SKIM system.

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Arsalan Mechanic
District of Columbia
Arsalan
 

Thank You

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Tim Technician
Pennsylvania
Tim
 

In the case of a failed skim you can copy eeprom data from the eeprom or mcu in the failed skim and dump it into a replacement used skim. Mike Christopherson and Pedro De La Torre are members here and teach a class on chrysler security where this is covered. You could probably also ship the original skim and a replacement used skim to one of them and they could transfer the data for you.

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Thanks
Christopher Owner/Technician
Arizona
Christopher
 

D max programer will let you erase and re-write vin inside skim module

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Brandon Diagnostician
California
Brandon
 

You guys tend to know far more than me but I remember in my earlier years the guy that showed me alot of things did a vin relearn and left it blank and said he did so to bypass the skim? This was a 2002 or 3 I think.

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