Scan Tool Data List

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

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/Manual Transmission in NEUTRAL/Air Conditioner is OFF
Check Coolant Temp	Outputs	On/Off	Off
Check Engine Temp	Outputs	On/Off	Off
Displayed Coolant Temp	Data	Celsius (C)/Fahrenheit (F)	87°C (189°F)
Low Coolant	Outputs	On/Off	Off
Monitored Coolant Temp	Data	Celsius (C)/Fahrenheit (F)	87°C (Fluctuates range 82-93°C) 189°F (Fluctuates range 180-200°F)
Reduced Engine Power	Outputs	On/Off	Off

Powertrain Control Module (PCM) 4.3L Scan Tool Data List

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition Switch in RUN/Engine running/Automatic Transmission in PARK/Manual Transmission in NEUTRAL/Air Conditioner is OFF
Coolant Level Switch	Engine Data 2	Low/OK	OK
ECT Sensor	Engine Data 2	Degrees	87°C (189°F)

Powertrain Control Module (PCM) 4.8L, 5.3L, and 6.0L Scan Tool Data List

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition Switch in RUN/Engine running/Automatic Transmission in PARK/Manual Transmission in NEUTRAL/Air Conditioner is OFF
Coolant Level Switch	Engine Data 2	Low/OK	OK
ECT Sensor	Engine Data 1 Engine Data 2	Degrees	87°C (189°F)

Powertrain Control Module (PCM) 8.1L Scan Tool Data List

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition Switch in RUN/Engine running/Automatic Transmission in PARK/Manual Transmission in NEUTRAL/Air Conditioner is OFF
Coolant Level Switch	Engine Data 2	Low/OK	No
ECT	Engine Data 1 Engine Data 2 Engine Data 3	Degrees	87°C (189°F)