Scan Tool Data Definitions

The Scan Tool Data Definitions contains a brief description of all IPC related parameters available on the scan tool.

8-Digit GM Part Number

The scan tool displays the GM 8-digit part number of the module.

Air Bag Lamp

The scan tool displays On/Off. The state of the air bag indicator as commanded by the IPC.

Antilock Discrete

The scan tool displays On/Off. When the discrete input is active to the IPC, the scan tool displays ON. When the discrete input is inactive, the scan tool displays OFF.

Antilock Lamp

The scan tool displays On/Off. The state of the ABS indicator as commanded by the IPC.

Battery Voltage

The scan tool displays 0-25.5 volts. The voltage measured at the battery positive voltage circuit of the IPC.

Brake Lamp

The scan tool displays On/Off. The state of the BRAKE indicator as commanded by the IPC.

Check Gages Lamp

The scan tool displays On/Off. The state of the CHECK GAGES indicator in the HUD.

Cruise Lamp

The scan tool displays On/Off. The state of the CRUISE indicator as commanded by the IPC.

Display Fuel Switch

The scan tool displays On/Off. The IPC monitors the Fuel Info button of the DIC switch. A closed switch is displayed as On.

Display Gage Switch

The scan tool displays On/Off. The IPC monitors the Gage Info button of the DIC switch. A closed switch is displayed as On.

Driver Door Ajar Sw

The scan tool displays On/Off. The state of the driver door ajar switch input detected by the DDM.

Driver Door Jamb Sw

The scan tool displays On/Off. The state of the driver door jamb switch input detected by the DDM (low input).

ECT Sensor

The scan tool displays -40 to +140°C (-40 to +284°F). The PCM monitors the voltage at the signal circuit of the engine coolant temperature sensor. The voltage is inversely proportional to the engine coolant temperature.

Engine Oil Level Switch

The scan tool displays OK/Low. The PCM monitors the signal circuit of the engine oil level switch, A open switch is displayed as Low.

Engine Oil Life Remaining

The scan tool displays 0-100%. The PCM is responsible for calculating and sending the correct oil life data to the IPC.

Engine Oil Pressure Sen

The scan tool displays 0-19 V. The PCM monitors the signal circuit of the engine oil pressure sensor.

Engine Speed

The scan tool displays 0-9999 RPM. The PCM is responsible for calculating correct engine speed data using the engine speed sensor input.

Engine Speed

The scan tool displays 0-9999 RPM. The IPC monitors the engine speed signal circuit from the PCM.

English/Metric Status

The scan tool displays English/Metric. The state of the units displayed on the IPC HUD as requested by the IPC.

English/Metric Sw

The scan tool displays Active/Inactive. The IPC monitors the Eng/Met button on the DIC switch, A closed switch is displayed as Active.

Fasten Seat Belts

The scan tool displays On/Off. The state of the fasten safety belt indicator as commanded by the IPC.

Fuel Tank Level Remaining

The scan tool displays 0-100%. The PCM calculates the amount of fuel remaining in the tank based on the signal circuit from the fuel level sensor.

High Beam Lamp

The scan tool displays On/Off. The state of the high beam indicator as commanded by the IPC.

High Beam Switch

The scan tool displays On/Off. The state of the high beam switch as detected by the head up display (HUD).

Hot Temp Lamp

The scan tool displays On/Off. The state of the hot coolant temperature indicator as commanded by the IPC.

Ignition 1

The scan tool displays On/Off. This indicates whether or not there is ignition 1 voltage at the IPC.

Ignition 3

The scan tool displays On/Off. This indicates whether or not there is ignition 3 voltage at the HUD.

Ignition Counter

The scan tool displays 0-50. The IPC and the HUD count the number of times the ignition is cycled.

Ignition Voltage

The scan tool displays 0-25.5 volts. The voltage measured at the HUD when the ignition is turned on.

Key In Ignition

The scan tool displays Yes/No. The instrument panel module (IPM) monitors the ignition key alarm switch. A closed switch is displayed as Yes with the key in the ignition.

km/h Lamp

The scan tool displays On/Off. The state of the km/h indicator as commanded by the IPC.

Left Rear Door Ajar Sw

The scan tool displays On/Off. The state of the left rear door ajar switch.

Left Rear Door Jamb Sw

The scan tool displays On/Off. The state of the left rear door jamb switch.

Low Brake Fluid

The scan tool displays On/Off. The IPC monitors the brake fluid level indicator switch. A closed switch is displayed as On.

Low Coolant Level

The scan tool displays On/Off. The state of the low coolant level indicator as commanded by the IPC.

Low Fuel Lamp

The scan tool displays On/Off. The state of the low fuel indicator as commanded by the IPC.

Lt Turning Signal Sw

The scan tool displays On/Off. The IPC and the HUD monitors the left turn signal supply voltage circuit. An active turn signal toggles between On and Off.

MPH

The scan tool displays On/Off. The state of the MPH indicator as commanded by the IPC.

Odo/Trip Switch

The scan tool displays On/Off. The IPC monitors the odo/trip button of the DIC switch. A closed switch is displayed as On.

Oil Pressure

The scan tool displays On/Off. The state of the oil pressure indicator as commanded by the IPC.

Outside Status

The scan tool displays Day/Night. The time of day as determined by the ambient light sensor.

Park Brake Switch

The scan tool displays On/Off. The IPC monitors the park brake switch. A closed switch is displayed as On.

Passenger Door Ajar Sw

The scan tool displays On/Off. The state of the passenger door ajar switch.

Passenger Door Jamb Sw

The scan tool displays On/Off. The state of the passenger door ajar switch input.

PROM ID

The scan tool displays the 4-digit number that identifies the PROM of the module.

Reset Switch

The scan tool displays On/Off. The IPC monitors the RESET switch of the DIC. A closed switch is displayed as On.

Right Rear Door Ajar Sw

The scan tool displays On/Off. The state of the right rear door ajar switch.

Right Rear Door Jamb Sw

The scan tool displays On/Off. The state of the right rear door jamb switch.

Rt Turning Signal Sw

The scan tool displays On/Off. The IPC and the HUD monitor the right turn signal supply voltage circuit. An active turn signal toggles between On and Off.

Serial Number

The scan tool displays the 4-digit serial number of the module.

Service Veh. Soon Lamp

The scan tool displays On/Off. The state of the SERVICE VEHICLE SOON indicator as commanded by the IPC.

Theft System Lamp

The scan tool displays On/Off. The state of the SECURITY indicator as commanded by the IPC.

Traction Off Lamp

The scan tool displays On/Off. The state of the TRACTION OFF indicator as commanded by the IPC.

Trip Reset Switch

The scan tool displays On/Off. The IPC monitors the trip reset button of the DIC switch. A closed switch is displayed as On.

Vehicle Speed

The scan tool displays 0-255 km/h (0-159 mph). The IPC and the HUD obtain vehicle speed data from the PCM on a dedicated input.

Vehicle Speed Sensor

The scan tool displays 0-255 km/p (0-159 mph). The PCM monitors the vehicle speed sensor signal circuit.

VF Dim

The scan tool displays 0-19 volts. The HUD monitors the VF dimming signal circuit of the HUD switch.

Volt Lamp

The scan tool displays On/Off. The state of the Charge indicator as commanded by the IPC.

Washer Fluid Level

The scan tool displays On/Off. The IPC monitors the windshield washer fluid level switch. A closed switch is displayed as On.

Year Module Built

The scan tool displays the 4-digit number which corresponds to the year that module was manufactured.