GM Service Manual Online
For 1990-2009 cars only

Powertrain Control Module 2.4L

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

HVAC Data

°C/°F

Varies

FC Relay 1 Command

HVAC Data

ON/OFF

OFF

FC Relay 2 Command

HVAC Data

ON/OFF

OFF

FC Relay 1 Circuit Status

HVAC Data

OK/Open/Short/Invalid State

OK

FC Relay 2 Circuit Status

HVAC Data

OK/Open/Short/Invalid State

OK