Apr 18, 2025 · 2007 Escalade Having Communication Issues Vehicle Still Runs And Drives ! locks going on and off Gauges going crazy Slow acceleration Hesitant shifting ABS Light CEL Light …

Dec 28, 2010 · Re: Check Engine Code U0100 Hello Restomod, Welcome to the forum! I am sorry to hear of the vehicle issue you've encountered. If you would like my assistance …

Feb 13, 2021 · This code U0100 popped up last week when I started the truck, but it drove fine. I do have an unlocked pcm with a Hemifever tune. Couple weeks ago i installed a new tune for …

May 7, 2023 · The only code I got was U0100 which means no communication with ECM. Battery was fully charged during all of this and had the same results over many attempts. Eventually I …

Jun 21, 2024 · Hi Everyone, I have been chasing my tail for some time now and am hoping someone could shed some light on my issue. I have been searching through the forum with no …

Feb 2, 2019 · The truck never went into eco mode so I took it back home. I read the code and it was U0100. Letting the truck off for 3 hours the code is still there. Any of you had this issue? …

Aug 8, 2022 · Fixing PCM communication error - no-crank & radio giving anti-theft code error

Mar 11, 2024 · U0100-00 Lost Communication With ECM/PCM : No Sub Type Information 4 Electronic Shifter Module Codes P1C8C-16 System Voltage : Circuit Voltage Below Threshold …

Feb 16, 2025 · U0121 U0100 U11BC U1110 U0140 - this one, for the BCM, truck has had it for years, since being repaired after an accident, never poses a check engine or anyt issue, and …

Mar 1, 2025 · Hi everybody. I hope someone can help me. 2007 Cadillac SRX AWD 3.6 Just changed the ABS module and now no start - no crank. I put the code reader on the OBD and it …