Control Module Communication Bus Off

The problems listed in my vehicle are the following • U0073: Control Module Communication Bus A Off • U0100: Lost Communication With Engine Control Module • U0121: Lost Communication with Electronic Brake Control Module • U0140: Lost Communication With Body Control Module • P0700: Transmission Control Module Requested MIL Illumination I believe this is due to a bad design in the wiring. Also the electric brake vacuum broke which is a common problem.

…The diagnostic read says – 1.)P0575 Cruise Control switch, 2.)P0700, 3.)U0101 - loss communication with transmission control module replace, 4.)Transmission input shaft speed sensor, 5.)Replace transmission electrical hydraulic control module, 6.)U0073 CAN bus Communication Is there a recall on this – this is very dangerous!!!

*What component failed:* Brake System Control Module / Brake System Control Module communication. DTCs U0073 (Control Module Communication Bus A Off), U1610, U053B — Permanent codes. Vehicle has been at dealer 4 times for same brake system failure since purchase at 26,000 miles, now 31,290 miles. Current RO XXX replaced Brake System Control Module and programmed. Failed again XXX, 2 days later, same brake warning and same Permanent codes. Vehicle currently at Rotolo Chevrolet, [XXX]. Dealer tech [XXX] submitted TAC case to GM engineering for assistance. Component is available for inspection at dealer upon request. *How safety was at risk:* The brake got very hard i almost crashed with my…

When driving, speedometer/RPM dial both go to 0. The “Service Stabilitrak” message comes on followed by the “Service Power Steering, Drive With Care” message. The check engine light will also sometimes appear. The transmission is also affected (jerking when changing gears, inability to accelerate properly, revving). Power steering goes in and out. Car doesn’t feel safe to drive while it’s happening. No triggers or commonalities known. Car goes back to normal when left off and turned back on. Code U0073 "Control Module Communication Bus 'A' Off” appeared with at home OBD2 scanner.

ECM - Engine System code P0700 and TCM - Transmission System code U0073. The truck went in to first gear and wouldn't go over 5 MPH on the highway. The dealer is saying it can't be replicated but it's happened multiple times to the vehicle in the past week. The truck was taken to the dealership and inspected but they claim nothing is wrong. The check engine light came on as well as the aforementioned codes.

two recalls in the past year is suppose to address the battery fire safety issue announed by gm in late 2020. days after the final software fix by gm weeks ago, the "check engine" light was lit on my chevy bolt. a follow up service appointment was needed to replace faulty hardware. today, after gm announced a THIRD recall. I used a popular third party obd2 app to check the health of my chevy bolt, 4 different issues were reported: U0293, P0AC4, U0100, and U0073. Note that GM software reports zero issues from GM's app. At this point, I trust what the third party app is reporting and NOT GM's app. It appears GM is hiding these issues from Chevy Bolt owners. I have a service appointment with…

My 2016 Colorado is having a power steering failure identical to the 2015 recall. Recall #16V054000 (issued February 2016) covered 2015 Colorados and Canyons with the same type of electric power steering (EPS) gear assembly prone to internal corrosion. Exact failure symptoms: Sudden stiff steering, steering wheel locks/stiffens “Service power steering” or “Stabilitrak” warnings DTC codes like U0073, U0101, C0545, etc. Defective part: Original gear assembly: GM part #23228020 Revised torque sensor cover kit (to prevent corrosion): GM part #84344239 The vehicle has been taken to the dealership in January when this failure first occured. The dealer claimed it was due to the corroded negative…

…Codes present from BCM are U0422 invalid data received, U1509, U0415, U0073, U0077, U0126, U0151. Service representative at dealer confirmed that Onstar will cause other problem do to error communication. Onstar device can shut down your vehicle. Electronic and computer problem can be unsafety on your vehicle. Onstar as well as Chevrolet/GM know that this is causing electrical problem but recommend to contact other shops to see if they can by pass that error and won’t take responsibility of what their are causing to all vehicles with 2G network

…Ford diagnostic report states: Description-U0073 Control module communication bus A off Failure type-88 Bus off Status-28 (Not current DTC) *Fault previously detected, not currently present* My concern with this info is if the fault was detected there is still fault! Am concerned that the faulty TCM and actuators caused issues with the clutch assembly and do not feel safe operating my 8 year old Ford due to skipping while accelerating in traffic. Vehicle one owner with 70,000 miles. No accidents and am young senior driver-age [XXX] . I can forward repair shop documentation. Thank you for your review and look forward to your recommendation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF…

UNKNOWN . Stabilitrak , power steering drive with care, and steering assist is reduced drive with care light turned on . I was on the freeway with my newborn and the car was slowly giving out and suddenly stopped while in the carpool lane . Took it to the car dealer and did a diagnostics and codes u100,u0101, u0415, and u0073 popped up . This is the second time this same exact thing has happened to me same messages popped up so I took it to the dealer and codes p0300 came out and p050D came out . This malfunction could have caused a serious injury to myself or my family .