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Chevrolet Equinox Service Manual: Electronic Brake Control Module Scan Tool Information Dynamics Control ABS Control

Chevrolet Equinox Service Manual / Chassis / Brake Control and Vehicle Dynamics / Electronic Brake Control Module Scan Tool Information Dynamics Control ABS Control

Table 1: Electronic Brake Control Module Scan Tool DataParameters
Table 2: Electronic Brake Control Module Scan Tool OutputControls

The electronic brake control module (EBCM) scan tool dataparameters list contains all ABS related parameters that areavailable on the scan tool. The list is arranged in alphabeticalorder. A given parameter may appear in any one of the datalists.

Electronic Brake Control Module Scan Tool DataParameters

Parameter

System State

Expected Value

Description

Operating Conditions: Ignition ON

ABS Pump Motor Voltage

0-V

The scan tool displays the commanded pump motorvoltage.

Acceleration Sensor Longitudinal Signal

Varies

The scan tool displays 0–5-V dependingon the vehicle's longitudinal acceleration.

Antilock Braking System

On

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

Brake Booster Electric Vacuum Pump

On/Off

The scan tool displays On or Off. On is displayed when theelectric vacuum pump motor is commanded On.

Brake Booster Vacuum Sensor Supply

4.8–5.2-V

The scan tool displays V. This is the voltage supplied to thebrake booster vacuum sensor.

Brake Booster Vacuum Sensor

Varies

The scan tool displays kPa (PSI) depending on the vacuumapplied to the brake booster.

Brake Fluid Level Sensor

OK

The scan tool displays OK when the brake fluid is at correctlevel 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 thestate of the brake pedal.

Brake pedal applied

Active

Brake Pressure Sensor

Brake pedal released

0–1-V

The scan tool displays 0–5-V dependingon the applied hydraulic brake pressure.

Brake pedal applied

1–5-V

Dynamic Rear Proportioning Status

On

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

Lateral Acceleration Signal

Varies

The scan tool displays 0–5-V dependingon the vehicle's lateral acceleration.

Left Front Inlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the left front inlet solenoid valve is commandedON.

Left Front Outlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the left front outlet solenoid valve is commandedON.

Left Front Wheel Speed Sensor

0-km/h (0-MPH)

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

Left Rear Inlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the left rear inlet solenoid valve is commandedON.

Left Rear Outlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the left rear outlet solenoid valve is commandedON.

Left Rear Wheel Speed Sensor

0-km/h (0-MPH)

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

Pump Motor Relay Feedback

Inactive

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

Primary Isolation Solenoid Valve Feedback

Inactive

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

Primary Prime Solenoid Valve Feedback

Inactive

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

Right Front Inlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the right front inlet solenoid valve is commandedON.

Right Front Outlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the right front outlet solenoid valve is commandedON.

Right Front Wheel Speed Sensor

0-km/h (0-MPH)

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

Right Rear Inlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the right rear inlet solenoid valve is commandedON.

Right Rear Outlet Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed when the right rear outlet solenoid valve is commandedON.

Right Rear Wheel Speed Sensor

0-km/h (0-MPH)

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

Secondary Isolation Solenoid Valve Feedback

Inactive

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

Secondary Prime Solenoid Valve Feedback

Inactive

The scan tool displays Inactive or Active. Active isdisplayed 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 currentposition 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 batteryvoltage.

Traction Control System

On

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

Variable Effort Steering Solenoid Valve Command

Varies

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

Variable Effort Steering Solenoid Valve Feedback

Varies

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

Vehicle Stability Enhancement System Relay Feedback

Active

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

Vehicle Stability System

On

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

Yaw Rate Signal Sensor

Varies

The scan tool displays 0–5-V dependingon the vehicle's yaw rate.

Electronic Brake Control Module Scan Tool OutputControls

Output Control

Description

ABS Left Front Solenoid Valves

Executes the left front ABS solenoids control function

ABS Left Rear Solenoid Valves

Executes the left rear ABS solenoids control function

ABS Pump Motor

Commands the ABS pump motor Increase or Decrease.

ABS Right Front Solenoid Valves

Executes the right front ABS solenoids controlfunction

ABS Right Rear Solenoid Valves

Executes the right rear ABS solenoids control function

Brake Booster Electric Vacuum Pump

Commands the electric vacuum pump motor ON or OFF.

Pressure Control Solenoid Valve

Commands the variable effort steering solenoid valve Increaseor Decrease.

Traction Control Left Front Solenoid Valves

Executes the left front traction control solenoids controlfunction

Traction Control Left Rear Solenoid Valves

Executes the left rear traction control solenoids controlfunction

Traction Control Right Front Solenoid Valves

Executes the right front traction control solenoids controlfunction

Traction Control Right Rear Solenoid Valves

Executes the right rear traction control solenoids controlfunction

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