Scan Tool Data Definitions

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

ALC Exhaust Solenoid: Indicates weather the exhaust solenoid is on or off.
Battery Voltage Signal: Range 10.0 - 16.0 V. Voltage measured by the suspension control module.
Compressor Relay: Indicates when the compressor relay is activated.
Compressor Temperature: Identifies when the compressor thermal trip has set.
Door Switch: Indicates if any doors or the hatch is open.
Engine Running: Indicates if the engine is running.
ERH Lamp Command: Indicates when the ERH lamp is commanded on.
ERH Switch: Indicates when the ERH switch is pressed.
Height Sensor Current: Indicates the current of the 5 volt reference circuit for both height sensors and the pressure sensor.
Height Sensor Supply Status: Indicates if the 5 volt reference circuit for both height sensors and the pressure sensor is active.
Ignition: Indicates when the ignition is on or off.
Ignition 3: Indicates switched voltage at the suspension module.
Inflator Switch: Indicates when the inflator switch is pressed.
Inflator Switch Lamp Command: Indicates when the inflator switch lamp is commanded on.
Left Height Sensor: Range 0.5 - 4.85 V. Indicates the vehicle height measured in volts.
Left Isolation Valve: Indicates when the inlet valve is active.
Neutral Switch: Indicates when the shifter is in neutral.
Number of DTCs: Indicates the number of DTCs set in the suspension module.
Park Switch: Indicates when the shifter is in park.
Ride Height Status: Indicates if the vehicle is in extended or normal ride height.
Right Height Sensor: Range 0.5 - 4.85 V. Indicates the vehicle height measured in volts.
Right Isolation Valve: Indicates when the inlet valve is active.
Total Valve Current: Indicates the total current that the inlet valves, exhaust valve, and compressor relay are using.
Tow / Haul Mode: Indicates when the transmission is in the tow / haul mode.
Trim Height Learned: Indicates if the trim height was learned after the calibration procedure.
Vehicle Speed: Indicates the speed of the vehicle.