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 Failed

ABS/TCS Data

Yes/No

No

ABS Pump Motor

ABS/TCS Data

On/Off

Off

ABS Warning Lamp

Normal Mode

On/Off

Off

Battery Voltage

ABS/TCS Data

Volts

B+

Brake Light Switch

ABS/TCS Data

Applied/Released

Released

Brake Switch

Normal Mode

Applied/Released

Released

Delivered Torque

TCS Data

N·m

Varies

DRP Disabled

ABS/TCS Data, Normal Mode

Yes/No

No

Eng. Torque Request

TCS Data

N·m

Varies

Left Front Wheel Speed

ABS/TCS Data

km/h or mph

0

Left Rear Wheel Speed

ABS/TCS Data

km/h or mph

0

LF Inlet Valve Solenoid

ABS/TCS Data

On/Off

Off

LF Outlet Valve Solenoid

ABS/TCS Data

On/Off

Off

Low Trac: TCS Active

Normal Mode

On/Off

Off

LR Inlet Valve Solenoid

ABS/TCS Data

On/Off

Off

LR Outlet Valve Solenoid

ABS/TCS Data

On/Off

Off

Rear TCS isolation Solenoid

TCS Data

On/Off

Off

Rear TCS Prime Solenoid

TCS Data

On/Off

Off

Requested Torque

TCS Data

N·m

Varies

RF Inlet Valve Solenoid

ABS/TCS Data

On/Off

Off

RF Outlet Valve Solenoid

ABS/TCS Data

On/Off

Off

Right Front Wheel Speed

ABS/TCS Data

km/h or mph

0

Right Rear Wheel Speed

ABS/TCS Data

km/h or mph

0

RR Inlet Valve Solenoid

ABS/TCS Data

On/Off

Off

RR Outlet Valve Solenoid

ABS/TCS Data

On/Off

Off

TCS Failed

TCS Data

Yes/No

No

TCS Switch State

TCS Data

Pressed/Release

Pressed

TCS Warning Lamp

Normal Mode

On/Off

Off

Traction Control Equipped

Normal Mode

Yes/No

Yes

Valve Relay State

ABS/TCS Data

On/Off

On

VSES Equipped

Normal Mode

Yes/No

No