GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: BCM powered and communicating with the scan tool.

Software Part Number

Module Information

8 digits

xxxxxxxx

Ambient Light Sensor

Data

Volts

0 - 5

Auto. Learn Timer

Security Data

Seconds

0 - 2550 (10 Sec resolution)

Battery Voltage

Data

Volts

12.5 Volts

Battery Power 2

Inputs

Present, Absent

Present

Battery Power 3

Inputs

Present, Absent

Present

Courtesy Switch

Inputs

On, Off

Off

Courtesy Ground

Input

Present, Absent

Present

Crank

Input

Yes, No

No

Door Handle Switch

Inputs

Active, Inactive

Inactive

Door Lock Switch

Inputs

Active, Inactive

Inactive

Door Lock Output

Outputs

On, Off

Off

Door Unlock Switch

Inputs

Active, Inactive

Inactive

Door Unlock Output

Outputs

On, Off

Off

Driver Door Switch

Inputs

Open, Closed

Closed

Driver Unlock Output

Outputs

On, Off

Off

Front Fog Lamp Relay

Outputs

On, Off

Off

Ground 2

Inputs

Present, Absent

Present

Headlamp Switch

Inputs

Active, Inactive

Inactive

Headlamps

Outputs

On, Off

Off

Horn Output

Outputs

On, Off

Off

His. DTC Cyc. Counts

Security Data

Counts

xxxx

Inadvert. Power Output

Input

On, Off

Off

Inadvert. Power Output

Outputs

On, Off

Off

Ignition 0

Inputs

On, Off

Off

Ignition 1

Inputs

On, Off

Off

Key In Ignition

Inputs

Yes, No

Yes

LCM Lights On Chime

Inputs

On, Off

Off

Left Turn Signal

Output

On, Off

Off

Low Tire Reset

Input

Active, Inactive

Inactive

Lock-out Timer

Security Data

Seconds

0 - 2550 (10 Sec resolution)

Lt. Turning Signal Sw.

Input

On, Off

Off

Park Brake Switch

Inputs

On, Off

Off

Parklamps

Outputs

On, Off

Off

Passkey Data Voltage

Security Data

Volts

0 - 5

RAP Output

Outputs

On, Off

Off

RFA Link In

Inputs

On, Off

On

RFA Link Out

Outputs

On, Off

Off

Right Turn Signal

Outputs

On, Off

Off

Rt. Turning Signal Sw.

Inputs

On, Off

Off

Seat Belt Status

Inputs

Buckled, Unbuckled

Buckled

Security Lamp State

Security Data

On, Off, Flashing

Off

Seed and Key Timer

Security Data

Seconds

0 - 2550 (10 Sec resolution)

Shift Select Switch

Inputs

Performance, Normal

Performance

TCS Switch

Inputs

Pressed, Not Pressed

Pressed

Theater Dimming 1

Outputs

On, Off

Off

Theft Data

Data

Volts

0 - 5

Theft Mode

Outputs

Armed, Disarmed

Disarmed

Trunk Ajar Switch

Inputs

On, Off

Off