GM Service Manual Online
For 1990-2009 cars only
Table 1: Electronic Brake Control Module Scan Tool Data Parameters
Table 2: Electronic Brake Control Module Scan Tool Output Controls

Electronic Brake Control Module Scan Tool Data Parameters

Parameter

Expected Value

Definition

Operating Conditions: Ignition ON

ABS Active

No

The scan tool displays Yes or No. The scan tool will display Yes when the ABS is active and No during normal vehicle operation.

Brake Pressure Sensor

Varies

This displays psi. This is the current pressure at the brake pressure sensor.

Brake Pressure Sensor Input

Varies

This displays Volts. This is the current brake pressure sensor voltage.

Brake Temp Status

Normal

The scan tool displays Normal or Overtemp. The status of the brake temperature. Indicates if the brake temperature is above the traction control thermal cutoff point.

DRP Active

No

The scan tool displays Yes or No. The active status of the DRP. Indicates if DRP is currently active.

DRP Disabled

No

The scan tool displays Yes or No. The failed status of the DRP. Indicates if the EBCM disabled DRP due to a malfunction.

Ignition Voltage Signal

Varies

This displays Volts. This is the current ignition voltage signal.

Lateral Accelerometer Signal

Varies

This displays g.

Lateral Accelerometer Signal

Varies

This displays Volts. This is the current lateral accelerometer signal voltage.

Left TCS Isolation Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the driver side traction control system isolation solenoid.

Left TCS Prime Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the driver side traction control system prime solenoid.

LF Inlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the driver front inlet solenoid.

LF Outlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the driver front outlet solenoid.

LF Wheel Speed Sensor

0 km/h (0 mph)

This displays km/h (mph). This is the current vehicle speed at the driver front wheel speed sensor.

LR Inlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the driver rear inlet solenoid.

LR Outlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the driver rear outlet solenoid.

LR Wheel Speed Sensor

0 km/h (0 mph)

This displays km/h (mph). This is the current vehicle speed at the driver rear wheel speed sensor.

RF Inlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the passenger front inlet solenoid.

RF Outlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the passenger front outlet solenoid.

RF Wheel Speed Sensor

0 km/h (0 mph)

This displays km/h (mph). This is the current vehicle speed at the passenger front wheel speed sensor.

Rough Road Detected

Varies

This displays g.

RR Inlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the passenger rear inlet solenoid.

RR Outlet Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the passenger rear outlet solenoid.

RR Wheel Speed Sensor

0 km/h (0 mph)

This displays km/h (mph). This is the current vehicle speed at the passenger rear wheel speed sensor.

Pump Motor Relay Command

Off

The scan tool displays On or Off. This is the current state of the pump motor relay.

Pump Motor Relay Feedback Signal

Off

The scan tool displays On or Off. This is the current state of the pump motor relay feedback signal.

Right TCS Isolation Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the passenger side traction control system isolation solenoid.

Right TCS Prime Solenoid Command

Off

The scan tool displays On or Off. This is the current state of the passenger side traction control system prime solenoid.

Solenoid Relay Command

Off

The scan tool displays On or Off. This is the current state of the solenoid relay.

Solenoid Relay Feedback Signal

Off

The scan tool displays On or Off. This is the current state of the solenoid relay feedback signal.

Steering Position Sensor

Varies

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

Steering Sensor Is Centered

Yes

The scan tool displays Yes or No. Yes is displayed if the steering sensor is centered.

Switched Battery Voltage Signal

Varies

This displays Volts. This is the current switched battery voltage signal.

SWPS Signal A

Varies

This displays Volts. This is the current steering wheel position sensor A signal voltage.

SWPS Signal B

Varies

This displays Volts. This is the current steering wheel position sensor B signal voltage.

TCS Active

No

The scan tool displays Yes or No. This is the state of the traction control system.

TCS Enable

Enabled

The scan tool displays Enabled or Disabled. This is the state of the traction control system.

Vehicle Speed

0 km/h (0 mph)

This displays km/h (mph). This is the current vehicle speed.

VSES Active

Varies

The scan tool displays Yes or No. This is the state of the vehicle stability enhancement system.

VSES Enabled

Varies

The scan tool displays Yes or No. This is the state of the vehicle stability enhancement system.

Yaw Rate Sensor

0.0 °/sec

The scan tool displays 0.0°/sec. The scan tool displays the signal received from the yaw rate sensor .

Yaw Rate Sensor

0.0 °/sec

The scan tool displays 0.0°/sec. The scan tool displays the signal received from the yaw rate sensor .

Yaw Rate Signal

0 Volts

This displays Volts. This is the current yaw rate signal voltage.

Electronic Brake Control Module Scan Tool Output Controls

Scan Tool Output Control

Description

Automated Bleed

This is used in order to bleed ABS hydraulics. Refer to Antilock Brake System Automated Bleed Procedure .

LF Inlet Valve Solenoid

Commands the solenoid ON and OFF.

LF Outlet Valve Solenoid

Commands the solenoid ON and OFF.

LR Inlet Valve Solenoid

Commands the solenoid ON and OFF.

LR Outlet Valve Solenoid

Commands the solenoid ON and OFF.

RF Inlet Valve Solenoid

Commands the solenoid ON and OFF.

RF Outlet Valve Solenoid

Commands the solenoid ON and OFF.

RR Inlet Valve Solenoid

Commands the solenoid ON and OFF.

RR Outlet Valve Solenoid

Commands the solenoid ON and OFF.