GM Service Manual Online
For 1990-2009 cars only

The EBCM Scan Tool Data Lists contain all the antilock brake system related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The column, 'Data List,' indicates the location of the parameter within the scan tool menu selections.

Use the EBCM Scan Tool Data Lists as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all the diagnostic procedures with the ABS Diagnostic Starting Point. Use the EBCM Scan Tool Data Lists only after the following is determined:

    • There is no published DTC procedure nor published symptom procedure for the customer concern.
        OR
    • The DTC or symptom diagnostic procedure indicated by the diagnostic system check does not resolve the customer concern.

The Typical Data Values are obtained from a properly operating vehicle under the conditions specified in the first row of the Scan Tool Data List table. Comparison of the parameter values from the suspect vehicle with the Typical Data Values may reveal the source of the customer concern.

The ID Information menu is located on the EBCM main screen.

EBCM Scan Tool Data List

Ignition is ON, engine OFF, and vehicle is stationary

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

ABS Warning Lamp

Normal Mode

On/Off

Off

ABS Pump Motor

ABS/TCS Data 1

On/Off

Off

ABS Relay Feedback

ABS/TCS Data 1

On/Off

Off

Brake Switch

ABS Data

Applied/Released

Released

Chime

Normal Mode

On/Off

Off

Desired Throttle Position

ABS/TCS Data 1

%

0

DTC Status

Normal Mode

Yes/No

No

Engine Speed

ABS Data

RPM

0

Left Front Wheel Speed

ABS/TCS Data 1, ABS Data

km/h or mph

0

Left Rear Wheel Speed

ABS/TCS Data 1, ABS Data

km/h or mph

0

Low Trac: TCS Active

Normal Mode

On/Off

Off

Part Number

System

Numeric

Varies

Pump Monitor Status

ABS Data

On/Off

Off

Right Front Wheel Speed

ABS/TCS Data 1, ABS Data

km/h or mph

0

Right Rear Wheel Speed

ABS/TCS Data 1, ABS Data

km/h or mph

0

Stop Lamp Switch Status

Normal Mode

Applied/Released

Released

System Type

System Data

Numeric

Varies

TCS Switch State

ABS/TCS Data 1, ABS Data

Pressed/Release

Pressed

TCS Warning Lamp

Normal Mode

On/Off

Off

Throttle Angle

ABS Data

%

0

Throttle Pedal Position

ABS/TCS Data 1

%

0

Traction Control Equipped

Normal Mode

Yes/No

Yes

Valve Relay State

ABS/TCS Data 1, ABS Data

On/Off

On