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: LDCM Scan Tool Data List
Table 4: RDCM 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

Connsole Switch Illumination

Data

0-100%

Varies with Dimming Level

Driver Door Ajar Switch

Input Data 2

Open/Closed

Closed

DRL Ambient Light Sensor

Data

Volts

Varies with Ambient Light Level

Fog Light Switch Illumination

Data

0-100%

Varies with Dimming Level

Front Fog Light Switch

Input Data 1

Active/Inactive

Inactive

Headlamp Off Switch

Input Data 1

Active/Inactive

Active

HVAC Bulb Illumination

Data

0-100%

Varies with Dimming Level

Inadvertent Load Monitor

Input Data 1

Active/Inactive

Active

Left Turn Monitor

Input Data 1

Active/Inactive

Inactive

Passenger Door Ajar Switch

Input Data 2

Open/Closed

Closed

PRNDL Illumination

Data

0-100%

Varies with Dimming Level

Rear Fog Light Switch

Input Data 1

Active/Inactive

Inactive

Right Turn Monitor

Input Data 1

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

Ambient Light Sensor

Data 2

Counts

0-255

Brake Lamp

Inputs

On/Off

Off

Courtesy Switch

Inputs

Active/Inactive

Inactive

Head Lamp State

Inputs

On/Off

Off

High Beam Lamp

Inputs

On/Off

Off

Left Turn Signal

Inputs

On/Off

Off

Park Brake Switch

Inputs

Active/Inactive

Inactive

Right Turn Signal

Inputs

On/Off

Off

Switch Dimming

Data 2

Counts

0-255

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

Door Switch Pad Illumination

Data

0-100%

Varies with Dimming Level

RDCM 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

Door Switch Pad Illumination

Data

0-100%

Varies with Dimming Level