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.
ICU (Integrated Control Unit): Description
The hydraulic control unit (HCU) and the controller anti-lock brake (CAB) used with this anti-lock brake system are combined (integrated) into one unit, which is called the integrated control unit (ICU). (Fig 1 ). The ICU is located on the driver's side of the vehicle, below the master cylinder. (Fig 2 ).
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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.