TSB - No Engine Crank Or No Engine Start Due To Electronic Lockup Of The WCM / SKREEM

March 04th, 2008 | Category: Electrical TSB, Jeep JK TSB & Recalls

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.

TSB 08-007-08

8 Comments so far

  1. John May 5th, 2008 10:19 pm

    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.

  2. rodney June 16th, 2008 12:35 am

    I have a JK built 05/2008, it rarely starts on the first crank. However it’s not covered by this TSB.

  3. Ibjeepr August 15th, 2008 10:58 pm

    I’ve had this problem twice. Got towed both times. They replaced the WCM the first time and said they replaced it with the new, improved one. The second time they said it was because the new, improved one was actually made with the same faulty parts. Hasn’t happned since though.

  4. ultrageek August 21st, 2008 12:08 am

    I’ve been hit by this 5 times in less than a year. they finally replaced the WCM a few months ago and have only had 1 of the two keys suffer the issue since. I’m in Colorado however and winter is on the way so we’ll have to wait and see if the cold has any effect. Thanks for the IOD/Battery recovery advice - it might prove very useful.

  5. Nick08JKUX December 9th, 2008 12:35 am

    I wish I would have read this TSB before this past weekend…just had it happen to me. I checked all the fuses and really just wasn’t sure what else to do. I had it towed to the dealership that I purchased it at, which just happened to be down the street. However, I had to wait about 1 1/2 hours for the tow truck, only to find out that I could have down one of the two options above and drove it to the dealer myself. I just got it back today and they replaced the WCM…we’ll see what happens…at least now I know what to do if it happens again. Thanks for posting this information.

  6. BRIAN December 18th, 2008 8:54 am

    This is also happening to the Dodge Sprinters.

  7. -MAW- January 7th, 2009 9:39 am

    is this the same as getting a click click click when trying to turn over the engine?

  8. Mike Hall May 30th, 2010 12:04 pm

    Is the WCM covered by jeep or do you pay for it

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