Scan Tool Data Definitions

Antilock Brake System

Diagnostic Information and Procedures

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 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 - 5.0 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).

Low Traction Lamp Command

- The scan tool displays On/Off. The scan tool displays On when the Low Traction Lamp is commanded on.

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.

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 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 DTC's are set.

Steering Wheel Position

- The scan tool displays - 1260 ° - + 1260 °. The scan tool displays 0 ° 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.

Traction Control Active

- The scan tool displays Yes/No. The scan tool displays Yes when the traction control system is active.

Traction Control Enabled

- The scan tool displays Yes/No. The scan tool displays Yes when the traction control system is enabled.

Traction Control Equipped

- The scan tool displays Yes/No. The scan tool displays Yes when the vehicle is equipped with traction control.

Traction Control Slip

- The scan tool displays Yes/No. The scan tool displays Yes when the rear wheel slip occurs during acceleration.

Traction Off Lamp Command

- The scan tool displays On/Off. The scan tool displays On when the traction off indicator is commanded on.

VSES Equipped

- The scan tool displays Yes/No. The scan tool displays Yes when the vehicle has been equipped with 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 - 5.0 Volts. The Scan tool displays 2.5 Volts when yaw rate is 0 deg/sec.