Scan Tool Data Definitions

The ABS scan tool data definitions contain a brief description of all ABS related parameters available on the scan tool. The parameters available on the scan tool are listed below in alphanumeric order.

4WD Status: The scan tool displays Two wheel drive/Four wheel drive. The scan tool displays Two wheel drive when engine torque is being delivered to only one axle.
ABS Lamp Command: The scan tool displays On/Off. The scan tool displays On when the ABS indicator is commanded ON.
ABS Pump Motor: The scan tool displays On/Off. The scan tool displays On when the ABS pump motor is commanded ON.
ABS Relay Command: The scan tool displays On/Off. The scan tool displays On when the system relay is commanded ON.
ABS Stop State: The scan tool displays On/Off. The scan tool displays On when the ABS is active.
Brake Switch Status: The scan tool displays On/Off. The scan tool displays On when the brake is applied.
Brake Warning Lamp Command: The scan tool displays On/Off. The scan tool displays On when the red brake warning indicator is commanded ON.
Diff. Pressure/Fluid Level Switch: The scan tool displays Ok/Low. The scan tool displays Ok when the brake fluid reservoir has an adequate fluid level and a brake fluid pressure differential is not present.
Digital SWPS Phase A: The scan tool displays Low/High. The scan tool displays Low when the Digital SWPS Phase A signal voltage is 0 volts.
Digital SWPS Phase B: The scan tool displays Low/High. The scan tool displays Low when the Digital SWPS Phase B signal voltage is 0 volts.
Delivered Torque: The scan tool displays 25-95%. The scan tool displays 25% when the powertrain control module (PCM) is providing the minimum percentage of available torque in an attempt to eliminate wheel slip.
DRP Active: The scan tool displays Yes/No. The scan tool displays Yes when the DRP is active.
Lateral Accelerometer Input: The scan tool displays 0-5 Volts. The Scan tool displays 2.5 Volts when lateral acceleration is 0 g.
Left Front Wheel Speed: The scan tool displays 3-257 km/h (2-160 mph). The scan tool displays 3 km/h (2 mph) when the vehicle is not moving or is moving at speeds less than or equal to 3 km/h (2 mph).
LF Dump Valve Command: The scan tool displays On/Off. The scan tool displays On when the left front dump valve solenoid is commanded ON.
LF Dump Valve Feedback: The scan tool displays On/Off. The scan tool displays On when the left front dump valve solenoid is energized.
LF Iso. Valve Command: The scan tool displays On/Off. The scan tool displays On when the left front isolation valve solenoid is commanded ON.
LF Iso. Valve Feedback: The scan tool displays On/Off. The scan tool displays On when the left front isolation valve solenoid is energized.
LR Dump Valve Command: The scan tool displays On/Off. The scan tool displays On when the left rear dump valve solenoid is commanded ON.
LR Iso. Valve Command: The scan tool displays On/Off. The scan tool displays On when the left rear isolation valve solenoid is commanded ON.
Left Rear Wheel Speed: The scan tool displays 3-257 km/h (2-160 mph). The scan tool displays 3 km/h (2 mph) when the vehicle is not moving or is moving at speeds less than or equal to 3 km/h (2 mph).
Master Cylinder Pressure Sensor Input (kPa or psi): The scan tool displays 0-13,800 kPa (0-2000 psi). The scan tool displays 0 kPa (0 psi) when the brake is released.
Master Cylinder Pressure Sensor Input (Volts): The scan tool displays 0.50-4.5 volts. The scan tool displays 0.50 volts when the master cylinder pressure is low.
Pre-Charge Command: The scan tool displays On/Off. The scan tool displays On when the pre-charge pump is commanded ON.
Pre-Charge Feedback: The scan tool displays On/Off. The scan tool displays On when the pre-charge pump is energized.
Requested Torque: The scan tool displays 40-95%. The scan tool displays 40% when the electronic brake control module (EBCM) requests the minimum percentage of available torque in an attempt to eliminate wheel slip.
Rear Dump Valve Command: The scan tool displays On/Off. The scan tool displays On when the rear dump valve solenoid is commanded ON.
Rear Dump Valve Feedback: The scan tool displays On/Off. The scan tool displays On when the rear dump valve solenoid is energized.
Rear Iso. Valve Command: The scan tool displays On/Off. The scan tool displays On when the rear isolation valve solenoid is commanded ON.
Rear Iso. Valve Feedback: The scan tool displays On/Off. The scan tool displays On when the rear isolation valve solenoid is energized.
Rear Wheel Speed: The scan tool displays 3-257 km/h (2-160 mph). The scan tool displays 3 km/h (2 mph) when the vehicle is not moving or is moving at speeds less than or equal to 3 km/h (2 mph).
RF Dump Valve Command: The scan tool displays On/Off. The scan tool displays On when the right rear dump valve solenoid is commanded ON.
RF Dump Valve Feedback: The scan tool displays On/Off. The scan tool displays On when the right front dump valve solenoid is energized.
RF Iso. Valve Command: The scan tool displays On/Off. The scan tool displays On when the right front isolation valve solenoid is commanded ON.
RF Iso. Valve Feedback: The scan tool displays On/Off. The scan tool displays On when the right front isolation valve solenoid is energized.
Right Front Wheel Speed: The scan tool displays 3-257 km/h (2-160 mph). The scan tool displays 3 km/h (2 mph) when the vehicle is not moving or is moving at speeds less than or equal to 3 km/h (2 mph).
Right Rear Wheel Speed: The scan tool displays 3-257 km/h (2-160 mph). The scan tool displays 3 km/h (2 mph) when the vehicle is not moving or is moving at speeds less than or equal to 3 km/h (2 mph).
RR Dump Valve Command: The scan tool displays On/Off. The scan tool displays On when the right rear dump valve solenoid is commanded ON.
RR Iso. Valve Command: The scan tool displays On/Off. The scan tool displays On when the right rear isolation valve solenoid is commanded ON.
Stability System Active: The scan tool displays Yes/No. The scan tool displays Yes when the VSES is active.
Stability System Enabled: The scan tool displays Yes/No. The scan tool displays Yes when the VSES is initialized and no VSES related DTCs are set.
Steering Wheel Sensor Signal: The scan tool displays 0.8-3.8 volts. The scan tool displays 2.5 volts when the steering wheel is centered with the front wheels directed straight ahead.
Steering Wheel Position: The scan tool displays -1260 degrees to +1260 degrees. The scan tool displays 0 degrees when the steering wheel is centered with the front wheels directed straight ahead.
System Voltage: The scan tool displays 9.0-17.5 volts. The scan tool displays the current battery positive voltage level at the EBCM.
TCS Iso. Valve Command: The scan tool displays On/Off. The scan tool displays Off when the TCS Iso. Valve is commanded OFF.
VSES Equipped: The scan tool displays Yes/No. The scan tool displays Yes when the vehicle has been equipped with vehicle stability enhancement system (VSES).
VSES Relay Command: The scan tool displays On/Off. The scan tool displays On when the VSES relay is commanded ON.
Yaw Rate Sensor Input: The scan tool displays 0-5 volts. The Scan tool displays 2.5 volts when yaw rate is 0 deg/sec.