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.
Abs (Anti-Lock Brake System): Description: Notes
This specification applies to HCU (Hydraulic Control Unit) and ECU (Electronic Control Unit) of the HECU. (Hydraulic and Electronic Control Unit)
This specification is for the wiring design and installation of ABS/ESC ECU.
This unit has the functions as follows.
- Input of signal from Pressure sensor, Steering angle sensor, Yaw & Lateral G sensor, the wheel speed sensors attached to each wheel.
- Control of braking force / traction force / yaw moment.
- Failsafe function.
- Self diagnosis function.
- Interface with the external diagnosis tester.
Installation position : engine compartment
- Brake tube length from Master cylinder port to HECU inlet port should be max. 1 m
- The position should not be close to the engine block and not lower than the wheel.
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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.
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