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Electronic Brake Control Module Scan Tool Information

Table 1: Electronic Brake Control Module Scan Tool Data Parameters
Table 2: Electronic Brake Control Module Scan Tool Output Controls

The electronic brake control module (EBCM) scan tool data parameters list contains all ABS related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists.

Electronic Brake Control Module Scan Tool Data Parameters

Parameter

System State

Expected Value

Description

Operating Conditions: Ignition ON

ABS Pump Motor Voltage

-

0 V

The scan tool displays the commanded pump motor voltage.

Acceleration Sensor Longitudinal Signal

--

Varies

The scan tool displays 0-5 V depending on the vehicle's longitudinal acceleration.

Antilock Braking System

--

On

The scan tool displays On or Off. Off is displayed when the ABS is disabled.

Brake Fluid Level Sensor

--

OK

The scan tool displays OK when the brake fluid is at correct level and Low when the brake fluid is low.

Brake Pedal Position Sensor

Brake pedal released

Inactive

The scan tool displays Inactive or Active depending on the state of the brake pedal.

Brake pedal applied

Active

Brake Pressure Sensor

Brake pedal released

0-1 V

The scan tool displays 0-5 V depending on the applied hydraulic brake pressure.

Brake pedal applied

1-5 V

Delivered Torque

--

Varies

The scan tool displays 0-100% depending on the how much torque the engine is delivering.

Dynamic Rear Proportioning Status

--

On

The scan tool displays On or Off. Off is displayed when the dynamic rear proportioning system is disabled.

Lateral Acceleration Signal

--

Varies

The scan tool displays 0-5 V depending on the vehicle's lateral acceleration.

Left Front Inlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the left front inlet solenoid valve is commanded ON.

Left Front Outlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the left front outlet solenoid valve is commanded ON.

Left Front Wheel Speed Sensor

--

0 km/h (0 MPH)

The scan tool displays km/h (MPH) depending on the current speed of the left front wheel speed sensor.

Left Rear Inlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the left rear inlet solenoid valve is commanded ON.

Left Rear Outlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the left rear outlet solenoid valve is commanded ON.

Left Rear Wheel Speed Sensor

--

0 km/h (0 MPH)

The scan tool displays km/h (MPH) depending on the current speed of the left rear wheel speed sensor.

Pump Motor Relay Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the pump motor is commanded ON.

Primary Isolation Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the isolation solenoid valve is commanded ON.

Primary Prime Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the prime solenoid valve is commanded ON.

Requested Torque

--

Varies

The scan tool displays 0-100% depending on the how much torque is requested.

Right Front Inlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the right front inlet solenoid valve is commanded ON.

Right Front Outlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the right front outlet solenoid valve is commanded ON.

Right Front Wheel Speed Sensor

--

0 km/h (0 MPH)

The scan tool displays km/h (MPH) depending on the current speed of the right front wheel speed sensor.

Right Rear Inlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the right rear inlet solenoid valve is commanded ON.

Right Rear Outlet Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the right rear outlet solenoid valve is commanded ON.

Right Rear Wheel Speed Sensor

--

0 km/h (0 MPH)

The scan tool displays km/h (MPH) depending on the current speed of the right rear wheel speed sensor.

Secondary Isolation Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the isolation solenoid valve is commanded ON.

Secondary Prime Solenoid Valve Feedback

--

Inactive

The scan tool displays Inactive or Active. Active is displayed when the prime solenoid valve is commanded ON.

Steering Column Position

Steering wheel in straight position

-5 to +5°

The scan tool displays °. This is the current position of the steering angle sensor.

Steering wheel turned left until stop

450-550°

Steering wheel turned right until stop

-550 to -450°

System Voltage

--

11-14 V

The scan tool displays V. This is the current battery voltage.

Traction Control System

Traction control switch released

On

The scan tool displays On or Off. Off is displayed when traction control is disabled.

Traction control switch pressed

Off

Variable Effort Steering Solenoid Valve Command

--

Varies

The scan tool displays A. This is the current applied to the variable effort steering solenoid valve.

Variable Effort Steering Solenoid Valve Feedback

--

Varies

The scan tool displays A. This is the variable effort steering solenoid valve feedback signal.

Vehicle Stability Enhancement System Relay Feedback

--

Inactive

The scan tool displays Inactive or Active depending on the state of the stability control.

Vehicle Stability System

Traction control switch released

On

The scan tool displays On or Off. Off is displayed when stability control is disabled.

Traction control switch pressed for 5 s

Off

Yaw Rate Signal

--

Varies

The scan tool displays 0-5 V depending on the vehicle's yaw rate.

Electronic Brake Control Module Scan Tool Output Controls

Output Control

Description

ABS Left Front Solenoid Valves

Commands the solenoid valves ON or OFF.

ABS Left Rear Solenoid Valves

Commands the solenoid valves ON or OFF.

ABS Pump Motor

Commands the ABS pump motor Increase or Decrease.

ABS Right Front Solenoid Valves

Commands the solenoid valves ON or OFF.

ABS Right Rear Solenoid Valves

Commands the solenoid valves ON or OFF.

Automated Brake Bleed

This is used in order to bleed ABS hydraulics. Refer to Hydraulic Brake System Bleeding

Brake Pressure Sensor Calibration

This is used in order to calibrate the brake pressure sensor.

Pressure Control Solenoid Valve

Commands the variable effort steering solenoid valve Increase or Decrease.

Steering Wheel Angle Sensor Learn

This function activates the steering wheel angle sensor learn procedure.

Traction Control Left Front Solenoid Valves

Commands the solenoid valves ON or OFF.

Traction Control Left Rear Solenoid Valves

Commands the solenoid valves ON or OFF.

Traction Control Right Front Solenoid Valves

Commands the solenoid valves ON or OFF.

Traction Control Right Rear Solenoid Valves

Commands the solenoid valves ON or OFF.

Yaw Rate Sensor Learn

This function activates the yaw rate sensor learn procedure.

   


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