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.

ABS Warning Lamp

Off

The scan tool will display On or Off depending on the state of the ABS indicator.

BPMV Pressure Sensor

0.0 Bar

The scan tool will display BAR or PSI. This is a reading of the pressure applied to brake pedal.

Brake Switch

Released

The scan tool displays Applied or Released. This is the state of the brake pedal.

DRP Active

No

The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP).

DRP Disabled

No

The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP).

EBTCM to PCM Requested Torque

0 N·m

The scan tool displays the Requested Torque signal in N·m.

Engine Speed

0 RPM

The scan tool displays the current engine speed in RPM.

Ignition Voltage

Varies

The scan tool displays 0-17 Volts. The scan tool displays the level of ignition voltage at the EBCM.

Lateral Accelerometer Sensor

0 g

The scan tool will display 0 g. The scan tool displays the lateral accelerometer signal received from the sensor.

Left Front Wheel Speed

0 km/h (0 mph)

This displays km/h (mph). This is the current speed of the left front wheel speed sensor.

LF Inlet Valve Solenoid

Inactive

The scan tool will display Active or Inactive. The scan tool displays the commanded state of the LF inlet solenoid valve.

LF Outlet Valve Solenoid

Inactive

The scan tool will display Active or Inactive. The scan tool displays the commanded state of the LF outlet solenoid valve.

LF TCS Isolation Solenoid

Inactive

The scan tool will display Active/Inactive. This displays the commanded state of the solenoid valve.

LF TCS Prime Solenoid

Inactive

The scan tool will display Active/Inactive. This displays the commanded state of the solenoid valve.

Left Rear Wheel Speed

OK

The scan tool displays OK or Low. This is the state of the washer fluid level.

Low Traction Lamp

Off

The scan tool will display On/Off. This will indicate the state of the Low Traction Indicator.

LR Inlet Valve Solenoid

Off

The scan tool displays Active or Inactive. The scan tool displays the commanded state of the LR inlet solenoid valve.

LR Outlet Valve Solenoid

Off

The scan tool displays Active or Inactive. The scan tool displays the commanded state of the LR outlet solenoid valve.

Motor Relay State

Off

The scan tool display On /Off. This is the commanded state of the ABS pump motor relay.

PCM to EBTCM Delivered Torque

0 N·m

The scan tool displays the Delivered Torque signal in N·m

RF Inlet Valve Solenoid

Off

The scan tool displays Active or Inactive. The scan tool displays the commanded state of the RF inlet solenoid valve.

RF Outlet Valve Solenoid

Off

The scan tool displays Active or Inactive. The scan tool displays the commanded state of the RF outlet solenoid valve.

RF TCS Isolation Solenoid

Inactive

The scan tool will display Active/Inactive. This displays the commanded state of the solenoid valve.

RF TCS Prime Solenoid

Inactive

The scan tool will display Active/Inactive. This displays the commanded state of the solenoid valve.

Right Front Wheel Speed

0 km/h (0 mph)

This displays km/h (mph). This is the current speed of the right front wheel speed sensor.

Rough Road Parameter

0g

The scan tool will display 0-g. The scan tool displays the EBCM calculation of the road surface roughness. This information is sent to the engine controller via a serial data message to be used for misfire detection.

RR Inlet Valve Solenoid

Off

The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR inlet solenoid valve.

RR Outlet Valve Solenoid

Off

The scan tool displays Active or Inactive - The scan tool displays the commanded state of the RR outlet solenoid valve.

Right Rear Wheel Speed

0 km/h (0 mph)

This displays km/h (mph). This is the current speed of the right front wheel speed sensor.

Speed Range 1 Calibrated

Yes

The scan tool displays Yes or No. Yes indicates speed range 1 is fully calibrated and the TPM system has full tire pressure detection capability from 31-65 km/h (19-40 mph). No indicates the TPM system is in the calibration process in speed range 1 and has no tire pressure detection capability in speed range 1.

Speed Range 1 Tire Pressure

No

The scan tool displays Yes or No. Yes indicates the TPM system has detected a low tire pressure condition in speed range 1. No indicates the TPM system has not detected a low tire pressure condition in speed range 1.

Speed Range 2 Calibrated

Yes

The scan tool displays Yes or No. Yes indicates speed range 2 is fully calibrated and the TPM system has full tire pressure detection capability from 65-95 km/h (40-59 mph). No indicates the TPM system is in the calibration process in speed range 2 and has no tire pressure detection capability in speed range 2.

Speed Range 2 Tire Pressure

No

The scan tool displays Yes or No. Yes indicates the TPM system has detected a low tire pressure condition in speed range 2. No indicates the TPM system has not detected a low tire pressure condition in speed range 2.

Speed Range 3 Calibrated

Yes

The scan tool displays Yes or No. Yes indicates speed range 3 is fully calibrated and the TPM system has full tire pressure detection capability from 95-120 km/h (59-74.5 mph). No indicates the TPM system is in the calibration process in speed range 3 and has no tire pressure detection capability in speed range 3.

Speed Range 3 Tire Pressure

No

The scan tool displays Yes or No. Yes indicates the TPM system has detected a low tire pressure condition in speed range 3. No indicates the TPM system has not detected a low tire pressure condition in speed range 3.

Speed Range 4 Calibrated

Yes

The scan tool displays Yes or No. Yes indicates speed range 4 is fully calibrated and the TPM system has full tire pressure detection capability from 120-145 km/h (74.5-90 mph). No indicates the TPM system is in the calibration process in speed range 4 and has no tire pressure detection capability in speed range 4.

Speed Range 4 Tire Pressure

No

The scan tool displays Yes or No. Yes indicates the TPM system has detected a low tire pressure condition in speed range 4. No indicates the TPM system has not detected a low tire pressure condition in speed range 4.

TCS Active

No

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

TCS Switch State

On

The scan tool displays On/Off. The scan tool will display the state of the Traction Control Switch.

TCS Warning Lamp

Off

The scan tool will display On or Off depending on the state of the TCS indicator.

TPM Indicator/Message

Off

The scan tool displays On or Off indicated if the TPM is currently requesting a warning lamp to illuminate or a message to be displayed.

TPM System Enabled

Yes

The scan tool displays Yes, or No. Yes indicates the TPM System has been enabled in the RCDLR. No indicates the TPM System has not been enabled in the RCDLR.

Valve Relay State

Off

The scan tool will display On/Off depending on the state of the VSES relay.

VES Auto Learn Complete

Yes

The scan tool will display YES/NO depending if the VSES auto learn is completed.

VES Malfunction

Not Set

The scan tool displays Set or Not Set.

VSES Active

No

The scan tool displays Yes or No. The scan tool displays Yes when VSES is active, and No when VSES is inactive.

VSES Failed

No

The scan tool will display Yes or No depending on the state of the VSES system.

VES Steering Angle Sensor

Varies

The scan tool displays -720° to approximately +720°. The scan tool will display the signal received from the Steering Angle 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 .

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.

Steering Angle Sensor Centering

Performs the steering wheel centering procedure.