| Table 1: | Electronic Brake Control Module Scan Tool Data Parameters |
| Table 2: | Electronic Brake Control Module Scan Tool Output Controls |
Parameter | System State | Expected Value | Description |
|---|---|---|---|
Operating Conditions: Ignition ON | |||
ABS Active | -- | No | The scan tool displays Yes or No. Yes is displayed if the ABS system is engaged. |
ABS Failed | -- | No | The scan tool displays Yes or No. Yes is displayed if there is an ABS fault. |
Accum. Pressure Sensor | -- | Varies | The scan tool displays MPa or PSI. The scan tool displays the amount of brake fluid pressure stored in the accumulator. |
Battery Voltage Signal | -- | Varies | This displays volts. This is the voltage status of the electronic brake control module (EBCM). |
Brake Fluid Level Status | -- | OK | The scan tool displays OK or Low. This is the state of the brake fluid level. |
Brake Pressure Sensor Input | -- | Varies | The scan tool displays 0-5 Volts. The scan tool displays approximately 1.5 volts when the ignition is ON. |
BPP Signal | -- | Released | The scan tool displays Applied or Released. This is the state of the brake pedal. |
Digital HWPS Index Pulse | -- | Varies | The scan tool displays High or Low. This is the state of the digital HWPS index pulse. Everytime the steering wheel turns, it toggles between high and low. |
Digital HWPS Phase A Pulse | -- | The scan tool displays High or Low. This is the state of the digital HWPS phase A pulse. Everytime the steering wheel turns, it toggles between high and low. | |
Digital HWPS Phase B Pulse | -- | The scan tool displays High or Low. This is the state of the digital HWPS phase B pulse. Everytime the steering wheel turns, it toggles between high and low. | |
DRP Active | -- | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
DRP Disabled | -- | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
Lateral Accelerometer Input | -- | 0 m/s ² (0 ft/s) | The scan tool displays the sideways acceleration of the vehicle in meters per second (m/s) or feet per second (ft/s). |
Longitudinal Accelerometer Sensor Signal | -- | 0 m/s ² (0 ft/s) | The scan tool displays the acceleration of the vehicle in meters per second (m/s) or feet per second (ft/s). |
LF Wheel Speed Sensor | -- | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left front wheel speed sensor. |
LF Inlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the left front inlet valve solenoid is commanded on. |
LF Outlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the left front outlet valve solenoid is commanded on. |
LR Wheel Speed Sensor | -- | OK | The scan tool displays OK or Low. This is the state of the washer fluid level. |
LR Inlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the left rear inlet valve solenoid is commanded on. |
LR Outlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the left rear outlet valve solenoid is commanded on. |
Pump Motor Command Voltage | -- | Varies | This displays Volts. This is the voltage status of the EBCM pump motor command. |
RF Inlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the right front inlet valve solenoid is commanded on. |
RF Outlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the right front outlet valve solenoid is commanded on. |
RF Wheel Speed Sensor | -- | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
RR Inlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the right rear inlet valve solenoid is commanded on. |
RR Outlet Solenoid Command | -- | Off | The scan tool displays On or Off. On is displayed when the right rear outlet valve solenoid is commanded on. |
RR Wheel Speed Sensor | -- | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
Steering Wheel Angle | -- | Varies | This displays degrees. This the signal received from the steering angle sensor. |
Steering Wheel Position | -- | Varies | This displays degrees. This is the signal received from the steering angle sensor. |
TCS Active | -- | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
TCS Failed | -- | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
VSES Active | -- | No | The scan tool displays Yes or No. The scan tool displays Yes when VSES is active, and No when VSES is inactive. |
VSES Failed | -- | No | The scan tool will display Yes or No depending on the state of the ABS indicator. |
Yaw Rate Sensor Input | -- | Varies | This displays Volts. The voltage varies depending on the angle of the vehicle. |
Output Control | Description |
|---|---|
ABS Motor Test | This is used in order to command the ABS pump motor On or Off. |
Automated Bleed | This is used in order to bleed ABS hydraulics. Refer to Antilock Brake System Automated Bleed Procedure . |
LF Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
LF Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
LR Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
LR Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
RF Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
RF Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
RR Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
RR Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
