Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC C2228: CAN Signal Error TCM For SCC (Check TCM): General Description
The Advanced Vehicle Stability Management (AVSM) is a function of the Electronic Stability Control (ESC)/Electrolnic Stability Program (ESP) and Hydraulic Electronic Control Unit (HECU). The Smart Cruise Control (SCC) maintains the vehicle speed and or the distance ahead of the vehicle. The AVSM is used by the Smart Cruise Control (SCC) to slow or stop the vehicle by applying the brakes.
The AVSM/HECU communicates with the ETM, TCM, and SCC via CAN.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.