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U0100 Diagnostic Trouble Code Discussion for August 2014

Lost Communication With ECM


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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2008 Chevrolet Suburban 2500 LT 6.0L MIL Lamp on, limp mode VIN: 3GNGK26K98
U0100: lost communication with ECM/PCM. Thanks in advance for any help with this. I'm this posting for my Technician and can supply additional information if requested. This vehicle is one of our News trucks that we service and there is no prior history regarding this problem. This vehicle was towed...
August 12, 2014
2008 Chevrolet Suburban 2500 LT 6.0L MIL Lamp on, limp mode VIN: 3GNGK26K98
U0100: lost communication with ECM/PCM. Thanks in advance for any help with this. I'm this posting for my Technician and can supply additional information if requested. This vehicle is one of our News trucks that we service and there is no prior history regarding this problem. This vehicle was towed...
August 13, 2014
2008 Mazda 3 S 2.3L Limp mode VIN: JM1BK32318
U0100: Loss of comm. ... have a customer with this mazda 3 and she said the check engine light came on and shifted hard, which im thinkiong limp mode, anyway when she got here it shifted fine, i scanned it with my modis and under engine..nothing so i rebooted it twice and still no...
August 27, 2014