Scan Tool Data Definitions

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

Air Bag Lamp: The scan tool displays On/Off. The state of the Air Bag indicator as commanded by the IPC.

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

Battery Voltage (BCM): The scan tool displays 0-19 volts. The voltage measured at the battery positive voltage circuit of the BCM.

Battery Voltage (IPC): The scan tool displays 0-19 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.

Chime: The scan tool displays the commanded state of the audible chime. The scan tool displays NONE when no audible chime is commanded. The scan tool displays HEAD LAMP, KEY IN IGNITION, SEAT BELT, TURN SIGNAL and PARK BRAKE as commanded.

Dimming: The scan tool displays Active/Inactive. Active is displayed when the park lamps are ON.

Displayed Odometer: The scan tool displays 0-999999 km (miles). The displayed value in the odometer on the IPC.

Displayed Trip Odometer: The scan tool displays 0-999999 km (miles). The displayed value in the trip odometer on the IPC.

Driver Door Jamb Switch: The scan tool displays Open/Closed, where an open switch and an open door is displayed as Open.

ECT Sensor: The scan tool displays -40-151°C (-40-304°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 Life Remaining: The scan tool displays 0-100 percent. This display represents the engine oil life that is calculated by the PCM.

Engine Oil Pressure Sensor: The scan tool displays 0 to 5 volts. The PCM monitors the engine oil pressure sensor signal circuit where a low voltage indicates low pressure.

Engine Speed: The scan tool displays 0-9999 RPM. The displayed engine speed gage value in the IPC.

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

Fuel Level Sensor: The scan tool displays 0-5 volts. The PCM calculates the amount of fuel remaining in the tank based on the input from the fuel level sensor.

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

Ignition 1: The scan tool displays Active/Inactive. The BCM displays Active if it senses voltage at the ignition 1 input.

Ignition 3: The scan tool displays Active/Inactive. The BCM displays Active if it senses voltage at the ignition 3 input.

Key in Ignition: The scan tool displays Active/Inactive. The BCM monitors the key in ignition switch, where a closed switch and the key in the ignition is displayed as Active.

Left Turn Signal: The scan tool displays On/Off. The BCM monitors the left turn signal switch, where a closed switch is displayed as On.

Low Fuel Lamp: The scan tool displays On/Off. The IPC receives a class 2 message from the PCM requesting illumination.

MIL Command: The scan tool displays On or Off. The state of the malfunction indicator lamp as commanded by the PCM.

Module Part Number: The scan tool displays the GM part number of the IPC.

Monitored Coolant Temp: The scan tool displays 40°F-419°F (40°C-215°C). The IPC monitored coolant temperature data as provided by the PCM via the class 2 serial data link.

Monitored Fuel Level: The scan tool displays 0-100%. The IPC monitored fuel level percent as provided by the PCM via the class 2 serial data link.

Overspeed Lamp: The scan tool displays On/Off. The state of the overspeed indicator as commanded by the IPC.

Park Brake Switch: The scan tool displays On/Off. The BCM monitors the park brake switch signal circuit, where a closed switch and the park brake engaged is displayed as On.

Park Lamps: The scan tool displays On/Off. The state of the park lamps as commanded by the BCM.

Park Switch: The scan tool displays Open/Closed. The state of the park position switch, where a closed switch and the shifter in park is displayed as CLOSED.

PRNDL State: The scan tool displays the PRNDL state as provided to the IPC from the PCM via the class 2 serial data link.
Right Turn Signal: The scan tool displays On/Off. The BCM monitors the right turn signal switch, where a closed switch is displayed as On.

Security Lamp: The scan tool displays On/Off/Flashing. The state of the security indicator as commanded by the IPC.

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

Tow/Haul: The scan tool displays On/Off. The IPC monitors the trip reset switch, where a closed switch is displayed as On.

Trip Reset Switch: The scan tool displays Active/Inactive. The IPC monitors the trip reset switch, where a closed switch is displayed as On.

Vehicle Speed: The scan tool displays 0-255 km/h (0-155 mph). The displayed vehicle speed value on the speedometer. The IPC monitors the vehicle speed signal circuit from the PCM.

Vehicle Speed Sensor: The scan tool displays 0-255 km/h (0-155 mph). The PCM monitors the voltage at the signal circuit of the vehicle speed sensor. The voltage is proportional to the vehicle speed.