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

ABS

On/Off

Off

ABS Active

ABS

Yes/No

No

Brake Switch

ABS

Applied/Released

Released

DRP Active

ABS/TCS

Yes/No

No

DRP Disabled

ABS/TCS

Yes/No

No

EBCM to PCM Requested Torque

TCS

N.m

Varies

Engine Speed

TCS

RPM

0

Ignition Voltage

ABS/TCS

Volts

B+

LF TCS Isolation Solenoid

TCS

Active/Inactive

Inactive

Left Front Wheel Speed

ABS/TCS

km/h or mph

0

Left Rear Wheel Speed

ABS/TCS

km/h or mph

0

LF Inlet Valve Solenoid

ABS

Active/Inactive

Inactive

LF Outlet Valve Solenoid

ABS

Active/Inactive

Inactive

LF TCS Prime Solenoid

TCS

Active/Inactive

Inactive

Low Traction Lamp

TCS

On/Off

Off

Motor Relay State

ABS/TCS

On/Off

Off

PCM To EBCM Delivered Torque

TCS

N.m

Varies

RF Inlet Valve Solenoid

ABS

Active/Inactive

Inactive

RF Outlet Valve Solenoid

ABS

Active/Inactive

Inactive

RF TCS Isolation Solenoid

TCS

Active/Inactive

Inactive

RF TCS Prime Solenoid

TCS

Active/Inactive

Inactive

Right Front Wheel Speed

ABS/TCS

km/h or mph

0

Right Rear Wheel Speed

ABS/TCS

km/h or mph

0

Rough Road Parameter

TCS

g

0

TCS Active

TCS

Yes/No

No

TCS Switch State

ABS/TCS

Pressed/Release

Pressed

TCS Warning Lamp

TCS

On/Off

Off

Valve Relay State

ABS/TCS

On/Off

On