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Old 10-17-2019, 03:10 PM   #1
vancecee
 
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Default key fob not working

I have a 2005 2500 sprinter.
the door locks, open and lock fine from the dash switch but not from the fob, unless it is about 90 plus degrees. then it works fine.
I live in florida.
I did change the door lock module under the driver seat, no help.
is there any one who has had this same problem?
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Old 10-17-2019, 05:18 PM   #2
autostaretx
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Default Re: key fob not working

The radio portion of the RKE (remote key entry) system is handled by the SKREEM module which is located behind the instrument panel (under the top-of-dash "hump").

The antenna runs up the driver's side A pillar ... many people have gotten it to work better by simply extracting the antenna wire and laying along the windshield's defroster slot.

The temperature sensitivity makes it sound like the radio(s) are "drifting" off-frequency ... and heat can definitely affect that.
It could be the fob, it could be the SKREEM (receiver).

Go to this directory/page: http://www.diysprinter.co.uk/referen...service_scans/
and fetch down the SKREEM files which begin with: http://www.diysprinter.co.uk/referen...087Skreem5.jpg
(that, then http://www.diysprinter.co.uk/referen...088Skreem5.jpg and onward up the 089, 090...)

The SKREEM has to be programmed by a dealer (or SOS Diagnostics) to match your ECM and your keys, so a simple "parts swap" ain't gonna fly.

This is going to sound stupid, but sometimes holding the fob under your chin (so your neck forms a reflector) can help. The shape and volume of the area there kind'a match the 315 MHz frequency. (if you're in the US/Canada market)

--dick
p.s. 2006 service manual (regarding pillar removal,etc): http://diysprinter.co.uk/reference/2006-VA-SM.pdf
__________________
2005 T1N 118" Freightliner 2500 Passenger Wagon (2.7L, 15" tires, standard (short) roof)
Get YOUR Sprinter's full configuration datacard by entering your VIN to https://www.datamb.com/
http://diysprinter.co.uk/reference <-- lots of service documentation, Thanks to Jens Moller and Arnie_Oli
((as always: this post may go through a couple of post-posting edits... so maybe give it ten minutes before commenting))
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