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.
2004 Infiniti FX45FACTORY OEM SERVICE PROCEDURE
Brake Control System
- Precautions
- Preparation
- On-Vehicle Service
- System Description
- Can Communication
- Trouble Diagnosis
- How To Proceed With Diagnosis
- Component Installation Location
- Schematic
- Wiring Diagram
- Control Unit Input/Output Signal Standard
- Consult-II Functions
- For Fast And Accurate Diagnosis
- Basic Inspection
- Inspection 1: Wheel Sensor System
- Inspection 2: Engine System
- Inspection 3: VDC/TCS/Abs Control Unit System
- Inspection 4: Pressure Sensor System
- Inspection 5: Steering Angle Sensor System
- Inspection 6: Yaw Rate/Side G-Sensor (2WD Model), Yaw Rate/Side/DECEL G-Sensor (AWD Models) System
- Inspection 7: Solenoid And VDC Change-Over Valve System
- Inspection 8: Actuator Motor System
- Inspection 9: Abs Actuator And Electric Unit (Control Unit) Power Supply And Ground System
- Inspection 10: Stop Lamp Switch System
- Inspection 11: Brake Fluid Level Switch System
- Inspection 12: When "St ANG Sen Signal" Appears On Self-Diagnosis Results Display
- Inspection 13: When "DECEL G Sen Set" Appears On Self-Diagnosis Results Display (AWD Model)
- Inspection 14: Can Communication System
- Component Inspection
- Symptom 1: Excessive Abs Function Operation Frequency
- Symptom 2: Unexpected Pedal Reaction
- Symptom 3: The Braking Distance Is Long
- Symptom 4: The Abs Function Does Not Operate
- Symptom 5: Pedal Vibration Or Abs Operation Sound Occurs
- Symptom 6: Vehicle Jerks During VDC/TCS/Abs Control
- Wheel Sensors
- Sensor Rotor
- Actuator And Electric Unit (Assembly)
- G Sensor
- Steering Angle Sensor
Factory Service Tools
Use the Manual With the Right Hardware
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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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