Electronic Parking Brake Control Module Scan Tool Information
WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
Parking Brake Control Module Scan Tool Data Parameters
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Ignition ON, Parking Brake Off | ||
| Battery Voltage | Varies | This displays the battery voltage (V). |
| Calculated System Temperature | Varies | The scan tool displays the parking brake control module temperature in degrees Celsius. |
| Electric Park Brake Calibration Test Status | Passed | The scan tool displays Passed or Failed. This parameter displays if the park brake calibration is properly programmed into the parking brake control module. |
| Park Brake Cable Position | Varies | The scan tool displays the current park brake position in counts. When the park brake is fully released the value will be 0 counts which will allow cable disassembly. The park brake cable position counts will display in range of 0-700 counts when released and 701-1300 counts when applied. |
| Park Brake Motor Command | Off | The scan tool displays On or Off. This parameter displays the status of the park brake motor. |
| Park Brake Motor Duty Cycle Command | Varies | The scan tool displays the pulse width modulated cycle as a percentage. |
| Park Brake Release Reason | None | The scan tool displays None, Ign. Cycled, Spd. Threshold, or Brake Applied. This parameter displays the reason the parking brake was released. |
| Park Brake Status | Released | The scan tool displays Applied, Released, Malfunction or Invalid. This parameter displays the current status of the parking brake. |
| Park Brake Switch | Inactive | The scan tool displays Applied, Released, Inactive, or Invalid. This parameter displays the current status of the parking brake switch. |
Parking Brake Control Module Scan Tool Output Controls
| Output Control | Description |
|---|---|
| Parking Brake Calibration | The electric parking brake module will activate the park brake calibration learn procedure when selected. During the learn procedure the rear brakes will cycle several times. |
| Parking Brake Cable Service Apply | The electric parking brake module will apply the parking brake cable tension to diagnose a possible EPB switch failure. |
| Parking Brake Cable Service Release | The electric parking brake module will release the parking brake cable to diagnose a possible EPB switch failure. |
| Parking Brake Cable Replacement Procedure | The electric parking brake module will unwind the parking brake cable for replacement or service when selected. |
| Park Brake Reset | The electric parking brake module will reset the park brake actuator when commanded. |
| Parking Brake Switch Diagnostics | The electric parking brake module will test the parking brake switch signals to verify they are working properly or if there is an open circuit. |