GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Malibu 🢒 Engine 🢒 Engine Cooling 🢒 Scan Tool Data List
Table 1: Body Control Module (BCM)
Table 2: Powertrain Control Module (PCM)

Body Control Module (BCM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

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

High Coolant Temp Lamp

SPI Data

On/Off

Off

Low Coolant Lamp

SPI Data

On/Off

Off

Low Coolant Level

BCM Data

OK/Low

OK

Powertrain Control Module (PCM)

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

°C/°F

Varies

FC Relay 1 Circuit Status

Output Driver

Fault/OK

OK

FC Relay 1 Command

Eng 2

On/Off

Off

FC Relay 2 and 3 Circuit Status

Output Driver

Fault/OK

OK

FC Relay 2 and 3 Command

Eng 2

On/Off

Off