GM Service Manual Online
For 1990-2009 cars only
Table 1: BCM Scan Tool Data List
Table 2: LDCM Scan Tool Data List
Table 3: SCM Scan Tool Data List

BCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On and Engine Off / Doors, Hatch or Trunk, and Hood Closed / No Switches On / Vehicle in Park or Neutral

Ignition 1

Input Data 1

On/Off

On

Ignition 2

Input Data 1

On/Off

On

Ignition 3

Input Data 1

On/Off

On

Key In Ignition

Input Data 1

Active/Inactive

Active

Key Out of Ignition

Input Data 1

Active/Inactive

Inactive

Current Power Mode

Input Data 1

Power Mode

Run

Driver Door Ajar Switch

Input Data 2

Open/Closed

Closed

Passenger Door Ajar Switch

Input Data 2

Open/Closed

Closed

Column Lock State

Input Data 2

Current State

Ignition On Unlocked

Column Feedback

Input Data 2

Active/Inactive

Active

Column Lock/Unlock A

Input Data 2

Active/Inactive

Inactive

Column Lock/Unlock B

Input Data 2

Active/Inactive

Inactive

LDCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On and Engine Off / Doors, Hatch or Trunk, and Hood Closed / No Switches On / Vehicle in Park or Neutral

Door Ajar

Inputs

Closed/Ajar

Closed

Memory 1 Select Switch

Inputs

Active/Inactive

Inactive

Memory 2 Select Switch

Inputs

Active/Inactive

Inactive

SCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On and Engine Off / Doors, Hatch or Trunk, and Hood Closed / No Switches On / Vehicle in Park or Neutral

Column Position Feedback

Column Info

Volts

0-5 Volts

Colunm In/Out Switch

Column Info

Active/Inactive

Inactive

Column In/Out Motor

Column Info

Active/Inactive

Inactive

Column Out Motor Stop

Column Info

Volts

0-5 Volts

Column In Motor Stop

Column Info

Volts

0-5 Volts

Memory 1 Stored Position

Column Info

Volts

0-5 Volts

Memory 2 Stored Position

Column Info

Volts

0-5 Volts

Memory 3 Stored Position

Column Info

Volts

0-5 Volts