So, unexpectedly, she went through that sequence. Crank, start, die. Crank, start die. No crank. All of the warning lights were on. I disconnected the battery, she went through the same sequence.

Here is what I learned (thanks to the wisdom contained in the forum. Look for it).

There is a SKREEM Module -- Sentry Key Remote Entry Module. It reads your electronic key. This sequence is what occurs when the SKREEM Module goes bad.

The cost -- surprisingly -- is reasonable. $140 from Chrysler for a rebuilt with a $500 core charge (as of the date of this post). Also available new from "Auto Parts ASAP" (at $800, I think no core charge) and from "Factory OEM Parts of Tampa, Fla" (at $140, I assume with a core charge). They will require your VIN number and milage as part of the ordering process.

The SKREEM is a small electronic module and it is located behind the instrument cluster. It has 2 connectors attaching to 3 connections (the one on the left is a double connector). Its mercedes part number is "170 820 1826" and the book describes it as a door lock module. A chrysler alternitive number which is mentioned in the forum is "50 9954 1 AA". I will attempt to attach a photo, but I am electronically challenged. There are photos available on the forum.

Replacement is simple, once the instrument panel has been removed.

The SKREEM Module has a "learning" sequence to mate your particular key's electronic signature to the Module. Insert Key, turn to accessory, wait for a minute or so, then start. That should have been sufficient education for the Module.


I might also mention the "solder pin connections" issue with the PMC(?) module (see forum). That was my first attempt, but was not my problem. It is a Very Easy thing to do and I believe worthwhile. That module lifts out in 2 minutes, cover comes off in another 2 minutes, careful inspection of the 3 solder joints at the bottom right for fracturing of the solder takes another 2 minutes (I found 1 fracture), re-soldering takes another 3 or 4 minutes, then reassemble. A quick and pleasing preventative maintenance job.

Don