GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

8 Digit GM Part Number

Module Information

Numeric

Varies

Auxiliary Lighting

Inputs

On/Off

Off

Battery Voltage

Data

0-16 Volts

Varies

Calibration ID

Module Information

Numeric

Varies

Courtesy Switch

Inputs

On/Off

Off

Inadvert. Power Output

Outputs

On/Off

On

LCM Headlamp Sw. Status

Inputs

On/Off

Off

Park Lamp Input

Inputs

On/Off

Off

PROM ID

Module Information

Numeric

Varies

Theater Dimming #1

Inputs

On/Off

On

Theater Dimming #1

Outputs

On/Off

Off

Theater Dimming #2

Inputs

On/Off

On

Theater Dimming #2

Outputs

On/Off

Off

Drivers Door Module (DDM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

8 Digit GM Part Number

Module Information 2

Numeric

Varies

Battery Voltage

Data

0-16 Volts

Varies

Calibration ID

Module Information 1

Numeric

Varies

Driver Dome/Buzzer Sw.

Inputs

On/Off

Off

LR Dome/Buzzer Sw.

Inputs

On/Off

Off

Pass. Dome/Buzzer Sw.

Inputs

On/Off

Off

PROM ID

Module Information 1

Numeric

Varies

RR Dome/Buzzer Sw.

Inputs

On/Off

Off

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

8 Digit GM Part Number

Module Information

Numeric

Varies

Battery Voltage

Data

0-16 Volts

Varies

Lt. Turning Signal Sw.

Inputs

On/Off

Off

PROM ID

Module Information 1

Numeric

Varies

Rt. Turning Signal Sw.

Inputs

On.Off

Off

Serial Number

Module Information

Numeric

Varies

Remote Function Actuator (RFA) Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

8 Digit GM Part Number

Module Information

Numeric

Varies

Battery Voltage

Data

0-16 Volts

Varies

Calibration ID

Module Information

Numeric

Varies

Courtesy Lamp Output

Outputs

On/Off

Off

Exterior Lamp Output

Outputs

On/Off

Off

Park Lamp Input

Inputs

On/Off

Off

Perimeter Lamp Output

Outputs

On/Off

Off

PROM ID

Module Information

Numeric

Varies