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 C1742-81: Variant Error - ESC (Check ESC): General Description
The main features of CAN (Controller Area Network) bus system are:
- Signals are broadcast in both directions.
- The Multi-master principle.
- High availability by locating failed control units.
- Standardization in accordance with ISO 11898.
Vehicle electronically control need many informations of each module to increase convenience/safety by optimum control. The control module can either receive data from the each module by using CAN communication. The CAN communication is one of the vehicle communications method, which is now widely used to transfer the vehicle data.
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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.