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U0100 Diagnostic Trouble Code Discussion for November 2014

Lost Communication With ECM


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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2006 Chrysler 300 C 5.7L Hesitation, Stall, Misfire VIN: 2C3KA63H16
U0100: Lost Communication With ECM / PCM. ... & the gas pedal is being pressed, the engine will produce a misfire, but won't shut down. Once it misfires for the second time, the check engine light will come on & P0700 will be logged in the PCM & U0100 in th...
November 07, 2014
2006 Dodge Dakota SLT 4.7L No Start, interrupted cranking VIN: 1D7HW42N76
U0100: FCM Lost communication with ECM/PCM. Ok, I have a 2006 Dodge Dakota that will not Start.(CNS)It only happened when the engine is cold 20F and under. When the key is rotated to the start position the engine will crank for anywhere between 0.5-1.0 sec or until the engine tries to fire. Then the sta...
November 13, 2014
2006 Dodge Dakota SLT 4.7L No Start, interrupted cranking VIN: 1D7HW42N76
U0100: FCM Lost communication with ECM/PCM. Ok, I have a 2006 Dodge Dakota that will not Start.(CNS)It only happened when the engine is cold 20F and under. When the key is rotated to the start position the engine will crank for anywhere between 0.5-1.0 sec or until the engine tries to fire. Then the sta...
November 17, 2014