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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Automatic Brake Hold >> System Description >> Component Parts >> Chassis Control System >> Component Location

Component Location

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A. Right hand side of Instrument panel above glove box(view with instrument panel removed) B. Engine room (RH side) (view with component removed from vehicle) C. Center console(view with component removed from vehicle)
D. Left rear of vehicle(view with luggage side lower finisher (LH) removed)        
No. Component Function
1. TCM (Transmission Control Module) Mainly transmits the following signals to chassis control module via CAN communication:
  • Current gear position signal

Refer to Component Location for detailed component location.
2. ECM (Engine Control Module) Mainly transmits the following signal to chassis control module via CAN communication:
  • Accelerator pedal position signal
  • Engine torque signal

Refer to Component Location for detailed component location.
3. BCM Body Control Module) Mainly transmits the following signal to chassis control module via CAN communication:
  • Brake pedal status signal

Refer to Component Location for detailed component location.
4. Combination meter Mainly transmits the following signal to chassis control module via CAN communication:
  • Seat belt buckle switch (driver side) signal

Mainly receives the following signals from chassis control module via CAN communication:
  • Automatic brake hold indicator lamp signal
  • Meter display signal

Refer to Component Location for detailed component location.
5. Chassis Control Module Refer to Chassis Control Module .
6. ABS (Anti-lock Braking System) actuator and electric unit (control unit) Refer to Component Location .
7. Electric Parking Brake Switch (Automatic Brake Hold Switch) Refer to Electric Parking Brake Switch .
8. Electric Parking Brake Control Module Mainly transmits the following signals to chassis control module via CAN communication:
  • Chassis control module prohibition signal
  • Automatic brake hold permission signal
  • Electric parking brake operation signal (switch)
  • Electric parking brake status signal
  • Electric parking brake malfunction signal

Refer to Electric Parking Brake Switch (Automatic Brake Hold Switch)  for detailed component location.