GM Service Manual Online
For 1990-2009 cars only
Table 1: Electronic Brake Control Module (EBCM)
Table 2: Instrument Panel Cluster (IPC)
Table 3: Powertrain Control Module (PCM)

Electronic Brake Control Module (EBCM)

Ignition is ON, engine OFF, and vehicle is stationary

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

ABS Active

ABS Data

Yes/No

No

ABS Relay Command

ABS Data

On/Off

On

ABS Relay Feedback

ABS Data

On/Off

On

ABS Warning Lamp

ABS Data

On/Off

Off

Brake Fluid Level

ABS Data

Low/OK

OK

Brake Switch Status

ABS Data

Applied/Released

Released

Brake Temp Status

TCS Data

Normal/Over Temp

Normal

Configuration ID

ID Information

Numeric

Varies

DE Base Part Number

ID Information

Numeric

Varies

DE Build Sequence Number

ID Information

Numeric

Varies

DE Calibration Part Number

ID Information

Numeric

Varies

DE End Model Part Number

ID Information

Numeric

Varies

DE ROM Part Number

ID Information

Numeric

Varies

EBCM to PCM Requested Torque

TCS Data

%

90

Ignition Voltage

ABS Data

Volts

B+

Julian Date Code

ID Information

Numeric

Varies

Left Front Wheel Speed

    • ABS Data
    • TCS Data

km/h or mph

0

Left Rear Wheel Speed

    • ABS Data
    • TCS Data

km/h or mph

0

LF Inlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

LF Outlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

LF Rotor Temperature

TCS Data

°C/°F

Varies

LR Inlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

LR Outlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

PCM to EBCM Delivered Torque

TCS Data

%

10

Pump Motor Commanded State

ABS Data

On/Off

Off

Pump Motor Feedback State

ABS Data

On/Off

Off

RF Inlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

RF Outlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

RF Rotor Temperature

TCS Data

°C/°F

Varies

Right Front Wheel Speed

    • ABS Data
    • TCS Data

km/h or mph

0

Right Rear Wheel Speed

    • ABS Data
    • TCS Data

km/h or mph

0

Rough Road Parameter

    • ABS Data
    • TCS Data

g

0.00

RR Inlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

RR Outlet Valve Solenoid

ABS Data

Active/Inactive

Inactive

Switched Battery Voltage

ABS Data

Volts

B+

System ID

ID Information

Numeric

Varies

TCS Active

TCS Data

Yes/No

No

TCS Active Lamp

TCS Data

On/Off

Off

TCS Disable Lamp

TCS Data

On/Off

Off

TCS Enable Status

TCS Data

Enable/Disable

Disable

TCS Equipped

ID Information

Yes/No

Yes or No

TCS Failed

TCS Data

Yes/No

No

TCS Warning Lamp

TCS Data

On/Off

Off

Vehicle Speed

    • ABS Data
    • TCS Data

km/h or mph

0

Instrument Panel Cluster (IPC)

Ignition is ON, engine OFF, and vehicle is stationary

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

ABS Warning Lamp

Data Display

On/Off

Off

Ignition 1

Data Display

Volts

B+

Traction Off Lamp

Data Display

On/Off

Off

Powertrain Control Module (PCM)

Ignition is ON, engine OFF, and vehicle is stationary

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Torque Delivered Signal

Engine Data 2

%

10

Torque Request Signal

Engine Data 2

%

90

Traction Control

Transmission Data

Active/Inactive

Inactive

Traction Control Status

Engine Data 2

Active/Inactive

Inactive