GM Service Manual Online
For 1990-2009 cars only

Body Control Module (BCM)

Ignition ON/Engine OFF/Vehicle in PARK/Headlamps in AUTO

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Manufacture Enable Counter

Module Information 1

0-255

0

Module Part Number

Module Information 1

Numeric

Varies

Security Calibration Number

Module Information 2

Numeric

Varies

Security Suffix

Module Information 2

Two Letters

Varies

Auto Learn Timer

Security Data

Seconds

0-600

Battery Voltage

Security Data

Volts

Varies

Ignition 1

Security Data

ACTIVE/INACTIVE

ACTIVE

Ignition 3

Security Data

ACTIVE/INACTIVE

ACTIVE

Passlock Code

Security Data

Open/Short/Tamper/Numeric

Valid Code 1-10

Passlock Data Voltage

Security Data

Volts

0.86-4.28 Volts

Passlock State

Security Data

Ignition Off/Tamper/Fail Enable/Fail Enable Dec/Seedkey Lrn Pend/Seedkey Learn/Auto Learn Pend/Learn Passlock/Monitor Passlock/Normal Decision/Auto Learn

Monitor Passlock

Security Lamp State

Security Data

ON/OFF/FLASHING

OFF

Tamper Timer

Security Data

Seconds

0-600

VCM Fail Enable

Security Data

YES/NO

NO

VCM Fuel Continue

Security Data

YES/NO

YES

VCM Learn Timer

Security Data

ACTIVE/INACTIVE

INACTIVE

VTD Fuel Disable

Security Data

ACTIVE/INACTIVE

INACTIVE

VTD Fuel Disable Until Ignition Off

Security Data

YES/NO

NO

VTD Password Learn Mode

Security Data

ACTIVE/INACTIVE

INACTIVE