GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Century 🢒 Engine 🢒 Engine Electrical 🢒 Scan Tool Data List

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Battery Voltage

Data

Volts

12.6 Volts

Crank

Inputs

Yes/No

No

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Crank

Data

Yes/No

No

Volt Lamp

Inputs

On/Off

Off

LG8 Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Crank Request Signal

Engine Data 2

Yes/No

No

GEN F-Terminal Signal

Engine Data 2

%

0%

GEN L-Terminal Signal Command

Engine Data 2

On/Off

Off

Ignition 1 Signal

Engine Data 1, Engine Data 2

Volts

12.6 Volts

Starter Enable Relay Circuit Status

Outputs

OK/Fault/Invalid State

OK

Starter Relay Command

Engine Data 2

On/Off

Off

L36, L67 Powertrain Control Module (PCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

GEN F-Terminal Signal

Engine Data 2

%

0%

GEN L-Terminal Signal Command

Engine Data 2

On/Off

Off

Ignition 1 Signal

Engine Data 1

Volts

12.6 Volts

Starter Enable Relay Circuit Status

Output Driver Data

Fault/OK/Invalid State

OK

Starter Relay Command

Engine Data 2

On/Off

Off