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

Hatch/Trunk Ajar Switch

Input Data 2

Open/Closed

Closed

Hatch/Trunk Release Switch

Input Data 2

Active/Inactive

Inactive

Folding Top Ajar Switch

Input Data 2

Open/Closed

Closed

Folding Top Release Switch

Input Data 2

Active/Inactive

Inactive

IPC 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 / Park Brake Applied

Park Brake Switch

Inputs

Active/Inactive

Active

PCM 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 / Park Brake Applied

PRND Position

Eng 2, 3, Cruise Control

Transaxle Gear Selector Position

Park

Transmission Range

ENG 1, 2, 3, Cruise Control, Freeze Frame/Failure Records

Transaxle Gear Position

Park/Neutral