GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module
Table 2: Driver Door Module
Table 3: Driver Door Switch
Table 4: Passenger Door Module

Body Control Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

RUN MODE ON

Battery Voltage Signal

Data

Volts

9-16 Volts

LF Door Ajar Switch

Data

Door Closed/Ajar

Door Closed

LF Latch Solenoid Command

Data

Active/Inactive

Inactive

RF Door Ajar Switch

Data

Door Closed/Ajar

Door Closed

RF Latch Solenoid Command

Data

Active/Inactive

Inactive

Driver Door Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

RUN MODE ON

Battery Voltage Signal

Data

Volts

9-16 Volts

Deadbolt Actuator Command

Data

Idle/Lock/Unlock/Invalid

Idle

Driver Mirror Fold Motor Command

Data

Idle/Extend/Retract

Idle

Driver Mirror Heater

Data

Active/Inactive

Inactive

Driver Mirror Motors Command

Data

Idle/Up/Down/Left/Right/Left Up/Left Down/Right Up/Right Down

Idle

Driver Mirror Horizontal Position

Data

Counts

25-225 Counts

Driver Mirror Horizontal Position

Data

Volts

0.5-4.5 Volts

Driver Mirror Vertical Position

Data

Counts

25-225 Counts

Driver Mirror Vertical Position

Data

Volts

0.5-4.5 Volts

Driver Window Motor Command

Data

Idle/Up/Down

Idle

Driver Window Position

Data

Counts

Varies

Ext. Driver Door Handle Switch

Data

Active/Inactive

Inactive

Int. Driver Door Handle Switch

Data

Active/Inactive

Inactive

Lock Switch Indicator Command

Data

Active/Inactive

Inactive

Memory 1 Mirror Horizontal Position

Data

Counts

25-225 Counts

Memory 1 Mirror Horizontal Position

Data

Volts

0.5-4.5 Volts

Memory 1 Mirror Vertical Position

Data

Counts

25-225 Counts

Memory 1 Mirror Vertical Position

Data

Volts

0.5-4.5 Volts

Memory 2 Mirror Horizontal Position

Data

Counts

25-225 Counts

Memory 2 Mirror Horizontal Position

Data

Volts

0.5-4.5 Volts

Memory 2 Mirror Vertical Position

Data

Counts

25-225 Counts

Memory 2 Mirror Vertical Position

Data

Volts

0.5-4.5 Volts

Window Motor Sensor 1

Data

Active/Inactive

Inactive

Window Motor Sensor 2

Data

Active/Inactive

Inactive

Window Normalization

Data

Yes/No

Yes

Driver Door Switch

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

RUN MODE ON

Battery Voltage Signal

Data

Volts

9-16 Volts

Door Lock Switch

Data

Idle/Lock/Unlock

Idle

Drvr. LF Window Switch

Data

Idle/Up/Down/Express Up/Express Down

Idle

Drvr. RF Window Switch

Data

Idle/Up/Down/Express Up/Express Down

Idle

Mirror Direction Switch

Data

Idle/Up/Down/Left/Right/Left Up/Left Down/Right Up/Right Down

Idle

Mirror Fold Switch

Data

Idle/Extend/Retract

Idle

Mirror Select Switch

Data

Off/Driver/Passenger

Off

Passenger Door Module

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

RUN MODE ON

Battery Voltage Signal

Data

Volts

9-16 Volts

Door Lock Switch

Data

Idle/Lock/Unlock

Idle

Ext. Psgr. Door Handle Switch

Data

Active/Inactive

Inactive

Front Psgr. Window Position

Data

Counts

Varies

Front Psgr. Window Switch

Data

Idle/Up/Down/Express Up/Express Down

Idle

Int. Psgr. Door Handle Switch

Data

Active/Inactive

Inactive

Lock Switch Indicator Command

Data

Active/Inactive

Inactive

Memory 1 Mirror Horizontal Position

Data

Counts

25-225 Counts

Memory 1 Mirror Horizontal Position

Data

Volts

0.5-4.5 Volts

Memory 1 Mirror Vertical Position

Data

Counts

25-225 Counts

Memory 1 Mirror Vertical Position

Data

Volts

0.5-4.5 Volts

Memory 2 Mirror Horizontal Position

Data

Counts

25-225 Counts

Memory 2 Mirror Horizontal Position

Data

Volts

0.5-4.5 Volts

Memory 2 Mirror Vertical Position

Data

Counts

25-225 Counts

Memory 2 Mirror Vertical Position

Data

Volts

0.5-4.5 Volts

Passenger Window Motor Command

Data

Idle/Up/Down

Idle

Psgr. Mirror Fold Motor Command

Data

Idle/Extend/Retract

Idle

Psgr. Mirror Heater

Data

Active/Inactive

Inactive

Psgr. Mirror Horizontal Position

Data

Counts

25-225 Counts

Psgr. Mirror Horizontal Position

Data

Volts

0.5-4.5 Volts

Psgr. Mirror Motors Command

Data

Idle/Up/Down/Left/Right/Left Up/Left Down/Right Up/Right Down

Idle

Psgr. Mirror Vertical Position

Data

Counts

25-225 Counts

Psgr. Mirror Vertical Position

Data

Volts

0.5-4.5 Volts

Window Motor Sensor 1

Data

Active/Inactive

Inactive

Window Motor Sensor 2

Data

Active/Inactive

Inactive

Window Normalization

Data

Yes/No

Yes