Scan Tool Data List

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Scan Tool Data List

Scan Tool Parameter	Units Displayed	Cold Key On¹	Cold Idle¹	Hot Idle¹	55 MPH Cruise²
AFO Enable Circuit Status	FAULT/NO FAULT	NO FAULT	NO FAULT	NO FAULT	NO FAULT
AFO Relay Command	ALT FUEL/GASOLINE	ALT FUEL	ALT FUEL	ALT FUEL	ALT FUEL
Consecutive CNG Starts	0-100	0-100	0-100	0-100	0-100
FICM Diagnostic Circuit Status	FAULT/NO FAULT	NO FAULT	NO FAULT	NO FAULT	NO FAULT
FICM Even Bank Circuit Status	FAULT/NO FAULT	NO FAULT	NO FAULT	NO FAULT	NO FAULT
FICM Odd Bank Circuit Status	FAULT/NO FAULT	NO FAULT	NO FAULT	NO FAULT	NO FAULT
Fuel Gauge Select Switch	RELEASED/APPLIED	RELEASED	RELEASED	RELEASED	RELEASED
Fuel Mode Command	ALT FUEL/GASOLINE	ALT FUEL	ALT FUEL	ALT FUEL	ALT FUEL
Fuel Mode Switchover Reason	DTC SET/LOW FRP/LOW FTP/EXT. CRANK/100th START/ECT LOW TEMP/NOT SWITCHED	Varies	Varies	Varies	Varies
Fuel Rail Pressure Sensor	PSI	40 to 50 psi	40 to 50 psi	40 to 50 psi	40 to 50 psi
Fuel Rail Pressure Sensor	Volts	3.7V-4.0V	3.7V-4.0V	3.7V-4.0V	3.7V-4.0V
Fuel Rail Temperature Sensor	°C (°F)	near IAT	near IAT	near IAT	near IAT
Fuel Rail Temperature Sensor	Volts	near IAT	near IAT	near IAT	near IAT
Fuel Tank Pressure Sensor	PSI	200 to 4000 psi	200 to 4000 psi	200 to 4000 psi	200 to 4000 psi
Fuel Tank Pressure Sensor	Volts	Varies with Fuel Level	Varies with Fuel Level	Varies with Fuel Level	Varies with Fuel Level
Fuel Temperature Sensor	°C (°F)	near IAT	Cooler than IAT	Cooler than IAT	Cooler than IAT
Fuel Temperature Sensor	Volts	1.0V-4.5V	1.0V-4.5V	1.0V-4.5V	1.0V-4.5V
High Pressure Lockoff Solenoid Command	Fuel Flow/No Fuel Flow	Flow for 1 second then No Fuel Flow	Fuel Flow	Fuel Flow	Fuel Flow
Low Pressure Lockoff Solenoid Command	Fuel Flow/No Fuel Flow	No Fuel Flow	Fuel Flow	Fuel Flow	Fuel Flow
¹ For Cold Key On, Cold Idle, and Hot Idle ensure the following driving conditions are met: Vehicle in PARK A/C turned OFF No power steering load All accessories OFF Brake pedal released ² For 89 km/h (55 mph) cruise ensure the following driving conditions are met: Vehicle in Drive AC turned ON No power steering load Record the data after driving for approximately 1.6 km/h (1 mile).