GM Service Manual Online
For 1990-2009 cars only

BCM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Battery power is the only requirement for Module Information 1, Module Information 2, Data, Inputs and most Outputs. The Rear Defog Output requires the engine running.

8 Digit GM Part Number

Module Information 2

Numeric

XXXXXXXX

Battery Voltage

Data

Volts

12.8 Volts

Calibration ID

Module Information 1

Numeric

XXXX

Component Serial # 8-11

Module Information 2

Numeric

XXXX

Component Serial # 12

Module Information 2

Numeric

X

Component Serial # 13-1

Module Information 2

Numeric

XXXX

Component Serial # 17-1

Module Information 2

Numeric

XX

Door Jamb Switch

Inputs

On/Off

Off

Door Key Cyl. Unlock Sw.

Inputs

On/Off

Off

Door Lock Output

Outputs

On/Off

Off

Door Lock Switch

Inputs

Idle/Lock/Unlock

Idle

Door Unlock Output

Outputs

On/Off

Off

Driver Door Ajar Sw.

Inputs

On/Off

Off

Driver Door Jamb Sw.

Inputs

On/Off

Off

Driver Unlock Output

Outputs

On/Off

Off

Fuel Level

Data

Gallons

varies

Ignition Counter

Data

Numeric

varies

Julian Date of Build

Module Information 1

Numeric

XXXX

Passenger Door Ajar Sw.

Inputs

On/Off

Off

PROM ID

Module Information 1

Numeric

XXXX

Real Time Clock Hours

Real Time Clock

Numeric

Varies

Real Time Clock Minutes

Real Time Clock

Numeric

Varies

Real Time Clock Seconds

Real Time Clock

Numeric

Varies

Rear Defog Output

Outputs

On/Off

Off

Year Module Built

Module Information 1

Numeric

XXXX

MMM Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Battery power is the only requirement for Module Information, Data, Inputs and Outputs.

8 Digit GM Part Number

Module Information

Numeric

XXXXXXXX

Battery Voltage

Data

Volts

12.8 Volts

Calibration ID

Module Information

Numeric

XXXX

Julian Date of Build

Module Information

Numeric

XXXX

Left Mirror Outputs

Outputs

Idle/Left/Right/Up/Down

Idle

Left Mirror Switches

Inputs

Idle/Left/Right/Up/Down

Idle

Lt. Horiz. Mirror Pos.

Data

Volts

0.25 -  4.75

Lt.Vertical Mirror Pos.

Data

Volts

0.25 -  4.75

Memory Recall Switches

Inputs

Idle/Memory 1/Memory 2/Set/Exit

Idle

PROM ID

Module Information

Numeric

XXXX

Right Mirror Outputs

Outputs

Idle/Left/Right/Up/Down

Idle

Right Mirror Switches

Inputs

Idle/Left/Right/Up/Down

Idle

Rt. Horiz. Mirror Pos.

Data

Volts

0.25 -  4.75

Rt. Vertical Mirror Pos.

Data

Volts

0.25 -  4.75

Year Module Built

Module Information

Numeric

XXXX