Electronic Brake Control Module Scan Tool Information (With HP4)
The electronic brake control module (EBCM) scan tool data parameters list contains all ABS related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists.
Electronic Brake Control Module Scan Tool Data Parameters
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Vehicle in Service Mode | |||
| ABS Pump Motor Voltage | - | Varies | The scan tool displays the pump motor voltage. |
| Antilock Braking System | - | Inactive | The scan tool displays Inactive or Active. Active is displayed when the antilock braking system is in traction control event. |
| Antilock Braking System Status | - | No | The scan tool displays No or Yes. If there is an ABS malfunction the scan tool will display Yes. |
| Brake Booster Electric Vacuum Pump | - | Varies | This displays voltage of the Electric Vacuum Pump |
| Brake Controls Brake Pedal Position Sensor without Offset | - | Varies | This displays mm. This is the value used to compare the position of the primary piston sensors. |
| Brake Controls Brake Pedal Position Sen. 5 Volt Supply Voltage | - | Varies | This displays volts. This is the voltage supply to the brake controls brake pedal position sensor. |
| Brake Controls Brake Pedal Position | - | Varies | The scan tool displays the brake pedal counts. Learned or Not Learned. This is the brake controls brake pedal position sensor zeroed or learned value. |
| Brake Boost Power Status | - | Enabled | The scan tool displays Enabled or Disabled. |
| Brake Master Cylinder Pressure Sensor | - | Varies | This displays psi/kpa. This is the current brake applied pressure. |
| Brake Fluid Level Sensor | - | Varies | This displays volts. This is the voltage supply to the brake fluid level sensor signal. |
| Brake Pedal Position Sensor Signal | Brake pedal released | Released | The scan tool displays Applied or Release depending on the state of the brake pedal. |
| Brake pedal applied | Applied | ||
| Brake Pressure Sensor | Brake pedal released | 0-1.55 V | The scan tool displays 0-5 V depending on the applied hydraulic brake pressure. |
| Brake pedal applied | 1.55-5 V | ||
| Dynamic Rear Proportioning Status | - | No | The scan tool displays No or Yes. If the EBCM disables the dynamic rear proportioning due to a fault the scan tool will display Yes. |
| Engine Drag Control Status | - | No | The scan tool displays No or Yes. If the EBCM detects an ABS event, it sends a signal to the ECM to reduce engine power and Yes is displayed on the scan tool. |
| High Pressure Accumulator Sensor | - | Varies | This displays the pressure of the accumulator. |
| Ignition Voltage | - | Varies | This displays volts. This is the voltage status of the electronic brake control module (EBCM). |
| Lateral Acceleration | - | Varies | The scan tool displays the current lateral acceleration in m/s2 |
| Left Front Inlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the left front inlet solenoid valve is commanded ON. |
| Left Front Outlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the left front outlet solenoid valve is commanded ON. |
| Left Front Wheel Speed Sensor | - | 0 km/h (0 MPH) | The scan tool displays km/h (MPH) depending on the current speed of the left front wheel speed sensor. |
| Left Rear Inlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the left rear inlet solenoid valve is commanded ON. |
| Left Rear Outlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the left rear outlet solenoid valve is commanded ON. |
| Left Rear Wheel Speed Sensor | - | 0 km/h (0 MPH) | The scan tool displays km/h (MPH) depending on the current speed of the left rear wheel speed sensor. |
| Longitudinal Acceleration | - | Varies | The scan tool displays the current longitudinal acceleration in m/s2 |
| Panic Brake Assist Status | - | No | The scan tool displays No or Yes. If the EBCM disables the panic brake assist due to a fault the scan tool will display Yes. |
| Regenerative Braking Status | - | Active | The scan tool displays Active or Inactive. |
| Right Front Inlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the right front inlet solenoid valve is commanded ON. |
| Right Front Outlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the right front outlet solenoid valve is commanded ON. |
| Right Front Wheel Speed Sensor | - | 0 km/h (0 MPH) | The scan tool displays km/h (MPH) depending on the current speed of the right front wheel speed sensor. |
| Right Rear Inlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the right rear inlet solenoid valve is commanded ON. |
| Right Rear Outlet Solenoid Valve Command | - | Off | The scan tool displays Off or On. On is displayed when the right rear outlet solenoid valve is commanded ON. |
| Right Rear Wheel Speed Sensor | - | 0 km/h (0 MPH) | The scan tool displays km/h (MPH) depending on the current speed of the right rear wheel speed sensor. |
| Steering Wheel Angle Sensor Signal | Steering wheel in straight position | -5 to +5° | The scan tool displays °. This is the current position of the steering angle sensor. |
| Steering wheel turned left until stop | 450-550° | ||
| Steering wheel turned right until stop | -550 to -450° | ||
| System Voltage | - | 11-14 V | The scan tool displays V. This is the current battery voltage. |
| Traction Control System | - | No | The scan tool displays No or Yes. If there is a traction control malfunction the scan tool displays Yes. |
| Vehicle Stability System Status | - | No | The scan tool displays No or Yes. If there is a stability control malfunction the scan tool displays Yes. |
| Yaw Rate | - | Varies | The scan tool displays the current yaw rate in °/s. |
Electronic Brake Control Module Scan Tool Output Controls
| Output Control | Description |
|---|---|
| Automated Brake Bleed | This is used in order to bleed ABS hydraulics. |
| ABS Pump Motor | This is used in order to command the ABS pump motor On or Off. |
| ABS Left Front Solenoid Valves | Commands the solenoid valve ON or OFF. |
| ABS Right Front Solenoid Valves | Commands the solenoid valve ON or OFF. |
| ABS Left Rear Solenoid Valves | Commands the solenoid valve ON or OFF. |
| ABS Right Rear Solenoid Valves | Commands the solenoid valve ON or OFF. |
| Traction Control Left Front Solenoid Valves | Commands the solenoid valve ON or OFF. |
| Traction Control Right Front Solenoid Valves | Commands the solenoid valve ON or OFF. |
| Traction Control Left Rear Solenoid Valves | Commands the solenoid valve ON or OFF. |
| Traction Control Right Rear Solenoid Valves | Commands the solenoid valve ON or OFF. |
| Rear Brake Caliper Piston Extend | Commands the rear brake caliper piston to Extend Travel |
| Rear Brake Caliper Piston Retract | Commands the rear brake caliper piston to Retract Travel |
| Left Park Brake Actuator | Commands the park brake actuator ON or OFF. |
| Right Park Brake Actuator | Commands the park brake actuator ON or OFF. |
Electronic Brake Control Module Configuration/Reset Functions
| Functions | Description |
|---|---|
| Yaw Rate Sensor Learn | This learn is used to calibrate the multi-axis acceleration sensor. |
| Steering Angle Sensor Learn | This learn is used to calibrate the steering angle sensor. |
| Park Brake Calibration | This learn is used to calibrate the rear electronic parking brakes. |