This bulletin applies to 2013 Jeep Wranglers equipped with a 2.8L engine and built before Oct. 10, 2012. The customer may experience a no-crank/no-start condition. Upon diagnosis, the technician may find an active B2204 ECU configuration mismatch. This condition may be caused by the vehicle’s voltage dropping below 4.5 volts for greater than 200 msec. The WCM will lose information from the EEPROM. Lost information can include key programming.
This bulletin applies to 2013-2014 Buick Encore vehicles equipped with a 4-cylinder engine. The concern may involve an intermittent engine no-crank condition.
This bulletin applies to 2009-2011 Cadillac Escalade 2WD hybrid models where a no-crank concern is present, along with multiple codes set in different modules. After recording the codes, you may wonder which codes you should start with.
Some 1997-2007 Ford Crown Victoria models may exhibit a no-crank condition due to an open circuit in the starter relay to starter motor circuit at the starter motor connections.
This bulletin applies to 2012 GMC Sierra 4WD trucks. You may experience a vehicle that has a P0633 set in the ECM. Also, you will not be able to clear the DTC. Code P0633 will set as an indicator that the ECM is in learn mode and not as a fault indicator.
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