TSB - No Engine Crank Or No Engine Start Due To Electronic Lockup Of The WCM / SKREEM
NUMBER: 08-007-08
GROUP: Electrical
DATE: March 04, 2008
SUBJECT:
No Engine Crank Or No Engine Start Due To Electronic Lockup Of The WCM / SKREEM
OVERVIEW:
This bulletin involves the replacement of the Wireless Control Module (WCM). The WCM is
also referred to as the Sentry Key Remote Entry Module (SKREEM).
MODELS:
2007 - 2008 (JK) Wrangler
NOTE: This bulletin applies to vehicles built on or before November 30, 2007 (MDH 1130XX).
SYMPTOM/CONDITION:
The customer may experience a no engine crank and/or a no engine start condition. Also, the remote keyless entry (RKE) system may not operate. This condition may be due to an electrostatic discharge (ESD) from the ignition key into the Wireless Control Module (WCM), causing the WCM to electronically lockup. This condition may occur more
frequently in dry and/or cold weather conditions where a sufficient electrostatic charge is more easily produced. This condition is corrected by the replacement of the WCM.
Until the WCM is replaced, the WCM may be reset (unlocked) by either: disconnecting and then reconnect the battery negative cable at the battery, or by removing the IOD fuse (with the key out of the ignition switch), waiting 30 seconds, and reinstall the IOD fuse.
2 Comments so far
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i had this problem back in january, it sucked. i didnt know what to do. i had it towed. thanks to the forum ill know what to do for next time.
I have a JK built 05/2008, it rarely starts on the first crank. However it’s not covered by this TSB.