GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 Engine 🢒 Engine Cooling 🢒 Scan Tool Data List
Table 1: Instrument Panel Cluster (IPC)
Table 2: Powertrain Control Module (PCM) 5.7 Liter LS1

Instrument Panel Cluster (IPC)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition ON/Engine OFF

Engine Coolant Temperature

Data

Degrees Celsius (°C)/Degrees Fahrenheit (°F)

Varies

Coolant Level Input

Inputs

OK/Low

OK

Powertrain Control Module (PCM) 5.7 Liter LS1

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Key ON, Engine OFF

ECT Sensor

Engine Data 1, Engine Data 2, Engine Data 3

Degrees Celsius (°C)/Degrees Fahrenheit (°F)

Varies

FC Relay 1 Command

Engine Data 2, Engine Data 3

Off/On

Off

FC Relay 2 & 3 Command

Engine Data 2, Engine Data 3

Off/On

Off