GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: ignition ON, engine OFF.

Accy. Relay Command

Outputs

On/Off

On

Battery Voltage Signal

Data

Volts

12.6

Calibration ID

Module Information

Alphanumeric

xxxxx

Crank Voltage

Data

Volts

4.4

End Model Part Number

Module Information

Alphanumeric

xxxxxxxx

Julian Date of Build

Module Information

Numeric

xxxx

Ignition Accessory

Inputs

Active/Inactive

Active

Ign. Off/Run/Crank

Inputs

Active/Inactive

Active

Ignition 1 Run/Crank

Inputs

Active/Inactive

Active

Ignition 3

Outputs

Active/Inactive

Active

Software Part Number

Module Information

Alphanumeric

xxxxxxxx

Year Module Built

Module Information

Numeric

xxxx