GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Century 🢒 Engine 🢒 Engine Cooling 🢒 Scan Tool Data List
Table 1: Instrument Panel Cluster (IPC) Scan Tool Data List
Table 2: Powertrain Control Module (PCM) 3.1 Liter (LG8) Scan Tool Data List
Table 3: Powertrain Control Module (PCM) 3.8 Liter (L36, L67) Scan Tool Data List

Instrument Panel Cluster (IPC) Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition Switch in RUN/Engine Running/Automatic Transmission in PARK/Air Conditioner is OFF

Coolant Hot Lamp

Inputs

On/Off

Off

Powertrain Control Module (PCM) 3.1 Liter (LG8) Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition Switch in RUN/Engine Running/Automatic Transmission in PARK/Air Conditioner is OFF

ECT Sensor

Eng 1, 2, EGR, EVAP, Fuel Trim, Misfire

°C/°F

Varies

FC Relay 1 Circuit Status

Output Driver Data

OK/Fault

OK

FC Relay 1 Command

ENG2

On/Off

Varies

FC Relay 2 and 3 Circuit Status

Output Driver Data

OK/Fault

OK

FC Relay 2 and 3 Command

ENG2

On/Off

Varies

Powertrain Control Module (PCM) 3.8 Liter (L36, L67) Scan Tool Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition Switch in RUN/Engine Running/Automatic Transmission in PARK/Air Conditioner is OFF

ECT Sensor

Eng 1, 2, EGR, EVAP, Fuel Trim, Misfire

°C/°F

Varies

FC Relay 1 Circuit Status

Output Driver Data

OK/Fault/Invalid State

OK

FC Relay 1 Command

ENG2

On/Off

Varies

FC Relay 2 and 3 Circuit Status

Output Driver Data

OK/Fault/Invalid State

OK

FC Relay 2 and 3 Command

ENG2

On/Off

Varies