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.
2006 Infiniti Q45FACTORY OEM SERVICE PROCEDURE
Components Function Description
COMPONENT FUNCTION DESCRIPTION TABLE
| Component | Description |
|---|---|
| VDC/TCS/ABS control unit | Receives the information of various sensor signals, ECM and TCM, and then determines the vehicle driving status. Performs the calculations of target brake fluid pressure, by VDC actuator drive signal output and by engine torque required from the VDC/TCS/ABS control. |
| VDC actuator | Receives the actuator drive signal from VDC/TCS/ABS control unit, and then performs the brake fluid adjustment of each wheel caliper. |
| Yaw rate/side G sensor | Detects the yaw rate and side G of the vehicle. |
| Steering angle sensor | Detects the operating angle and direction of driver steering wheel. |
| Pressure sensor (Integrated in VDC actuator) |
Detects the fluid pressure (driver brake force) in VDC actuator. |
| Wheel sensor | Detects the rotation speed of each wheel. |
| VDC OFF switch | Cancels the VDC/TCS function. |
| ECM | Receives the command from VDC/TCS/ABS control unit, and then performs the controls of throttle motor and injector. |
Factory Service Tools
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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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