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Scan Tool Data Definitions



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.

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