Scan Tool Data Definitions

The scan tool displays On or Off. This is the state of the 4WD indicator as commanded by the instrument panel cluster (IPC).

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

The scan tool displays 0.0 to 999999.9 miles (0.0 to 999999.9 kilometers). The DIC determines annual mileage travelled from the 4 kpm vehicle speed signal circuit from the PCM.

The scan tool displays 0-100%. The Balance between the right and left audio output.

The scan tool displays On or Off. This is the state of the charge indicator as commanded by the IPC.

The scan tool displays 0-18 volts. This is the voltage at the battery positive voltage circuit of the BCM.

The scan tool displays 0-19 volts. The battery voltage as monitored by the IPC.

The scan tool displays 0-18 volts. The voltage measured from the radio or amplifier's ignition positive voltage circuit to ground.

The scan tool displays Active or Inactive. This is the state of the brake assist as monitored by the IPC.

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

The scan tool displays 0.0 to 999.9 mph (0.0 to 999.9 km/h). The DIC calculates the average speed from the business trip distance and time.

The scan tool displays 0.0 to 9999.9 gallons (0.0 to 9999.9 liters). The DIC calculates the business trip fuel used based on the class 2 message from the PCM.

The scan tool displays 0.0 to 999999.9 miles (0.0 to 999999.9 kilometers). The distance traveled is determined using the 4 kpm vehicle speed signal circuit from the PCM.

The scan tool displays 0 to 100%. The DIC calculates the business trip percent of annual mileage from the total business mileage travelled and the annual mileage travelled.

The scan tool displays Open or Closed. The BCM monitors the signal circuit of the cargo door ajar switch. An open switch is displayed as Open with the door open.

The scan tool displays On or Off. This is the state of the cargo lamp as commanded by the IPC.

The scan tool displays On or Off. The scan tool displays On when the cargo lamps are requested from the switch.

The scan tool displays On or Off. This is the state of the change engine oil indicator as commanded by the IPC.

The scan tool displays On or Off. This is the state of the check coolant temperature indicator as commanded by the IPC.

The scan tool displays On or Off. This is the state of the check engine oil level indicator in the message center as commanded by the IPC.

The scan tool displays On or Off. This is the state of the check engine temperature indicator as commanded by the IPC.

The scan tool displays None, Headlamp, Turn Signal, Key in Ignition, Seat Belt, or Park Brake. The selected condition that produces the chime is displayed.

The scan tool displays OK or Low. The PCM monitors the coolant level switch signal circuit and a closed switch is displayed as OK.

The scan tool displays On or Off. The state of the cruise control indicator as commanded by the IPC.

The scan tool displays gallons (Liters). The DIC receives a class 2 message from the PCM indicating the cumulative fuel gallons (liters).

The scan tool displays Inactive or Active. Inactive is displayed when the PRNDL and the odometer or trip odometer vacuum florescent display cannot be dimmed from the dimmer switch. Active is displayed when the PRNDL and the odometer or trip odometer vacuum florescent display can be dimmed from the dimmer switch in the IPC.

The scan tool displays On or Off. The DIC monitors the signal circuit of the fuel button of the DIC switch. A closed switch is displayed as On.

The scan tool displays 32-127°C (89-260°F). This is the displayed coolant temperature gage data. This data may differ from the monitored coolant temperature from the PCM.

The scan tool displays 0- 100%. This is the displayed fuel gage data. The data may differ from the monitored fuel level in the PCM.

The scan tool displays 0 to 999999 miles (0 to 999999 kilometers). The scan tool displays the data on the odometer in the IPC.

The scan tool displays 29-157°C (84-315°F). This is the displayed transmission oil gage data. The data may differ from the monitored trans oil temperature from the PCM.

The scan tool displays 9999.9 miles (9999.9 kilometers). The scan tool displays the data on the trip odometer in the IPC.

The scan tool displays On or Off. The BCM monitors the signal circuit of the driver door ajar switch. An open switch is displayed as On with the door open.

The scan tool displays -39 to +140°C (-38 to +284°F). This is the engine coolant temperature as monitored by the PCM.

The scan tool displays 00 to 99 Hours. The DIC begins to calculate elapsed time when Elapsed Time is displayed on the DIC and the RESET button is pressed.

The scan tool displays 00 to 59 Minutes. The DIC begins to calculate elapsed time when Elapsed Time is displayed on the DIC and the RESET button is pressed.

The scan tool displays 00 to 59 Seconds. The DIC begins to calculate elapsed time when Elapsed Time is displayed on the DIC and the RESET button is pressed.

The scan tool displays OK or Low. This is the state of the engine oil level switch as monitored by the PCM. A closed switch is displayed as OK.

The scan tool displays 0-100 percent. This is the engine oil life index that is calculated and maintained by the PCM.

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.

The scan tool displays 0-9999 RPM. Engine speed is computed by the PCM from the 3X reference input. It should remain close to desired idle under various engine loads with the engine idling.

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

The scan tool displays -50 to +50. The Fade between the front and rear audio output.

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

The scan tool displays gallons. The DIC receives a class 2 message from the PCM indicating the fuel capacity.

The scan tool displays 0-5 volts. The PCM monitors the fuel level sensor signal circuit where 0 V is an empty tank.

The scan tool displays 0-5 volts. The PCM monitors the rear tank fuel level sensor signal circuit where 0 V is an empty tank.

The scan tool displays gallons (liters). This is the amount of fuel remaining in the fuel tank as determined by the PCM.

The scan tool displays 0-100%. The scan tool displays in percentage the amount of fuel remaining in the fuel tank as determined by the PCM.

The scan tool displays gallons (liters). This is the fuel tank rated capacity as determined by the PCM.

The scan tool displays On or Off. This is the state of the headlamp and the panel dimmer switch. The scan tool displays On when the headlamp and the panel dimmer switch is turned On or in auto position with the ambient light sensor in its dark state.

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

The scan tool displays On or Off. This is the position of the high beam switch where an active switch is displayed as On.

The scan tool displays Active or Inactive. The BCM monitors the signal circuit of the hood ajar switch. An open switch is displayed as Active with the hood open.

The scan tool displays 0-10,000 hours. This is the PCM accumulated engine run time hours provided to the IPC via the class 2 serial data link.

The scan tool displays Active or Inactive. The scan tool displays Active when the ignition switch is in the RUN or CRANK position

The scan tool displays Active or Inactive. The scan tool displays Active when the ignition switch is in the RUN position only.

The scan tool displays 0-16 volts. The ignition 1 signal represents the system voltage detected by the PCM at the ignition voltage circuit.

The scan tool displays the vehicle ignition voltage at the DIC ignition voltage circuit.

The scan tool displays 9-16 volts. The illumination input voltage is the ignition monitored voltage at the instrument panel lamp supply voltage circuit at the DIC.

The scan tool displays Yes or No. The BCM monitors the signal circuit of the ignition key alarm switch. The scan tool displays Yes when the ignition key is fully inserted into the ignition switch cylinder.

The scan tool displays On or Off. The BCM monitors the signal circuit of the left rear cargo door ajar switch. An open switch is displayed as On with the door open.

The scan tool displays On or Off. This is the state of the low coolant indicator as commanded by the IPC.

The scan tool displays On or Off. The IPC determines when to illuminate the indicator based on the class 2 message from the PCM indicating the fuel level percent.

The scan tool displays On or Off. This the state of the low oil lamp command as monitored by the PCM.

The scan tool displays On or Off. The IPC monitors the windshield washer solvent level switch, where a closed switch with low washer fluid is displayed as On.

The scan tool displays On or Off. The DIC monitors the signal circuit of the Menu button of the DIC switch. A closed switch is displayed as On.

The scan tool displays On or Off. This is the commanded state of the MIL (Malfunction Indicator Lamp) by the PCM.

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

The scan tool displays -40°C to +215°C (-40°F to +419°F). This is the PCM monitored coolant temperature data as provided to the IPC via the class 2 serial data link.

The scan tool displays 0-100%. This is the PCM monitored fuel level percent as provided to the IPC via the class 2 serial data link.

The scan tool displays 0-100%. This is the PCM monitored fuel level percent as provided to the DIC via the class 2 serial data link.

The scan tool displays -40°C to +215°C (-40°F to +419°F). This is the PCM monitored transmission oil temperature data as provided to the IPC via the class 2 serial data link.

The scan tool displays On or Off. The DIC monitors the signal circuit of the Trip button of the DIC switch. A closed switch is displayed as On.

The scan tool displays On or Off. The state of the oil pressure indicator in the message center as commanded by the IPC. The IPC monitors the engine oil pressure sensor signal where a low sensor resistance is proportional to low oil pressure.

The scan tool displays On or Off. The DIC monitors the signal circuit of the On/Off button of the DIC switch. A closed switch is displayed as On.

The scan tool displays On or Off. This is the state of the overspeed indicator as commanded by the IPC in the message center.

The scan tool displays Set or Released. The BCM monitors the park brake signal circuit, where a closed switch with the park brake applied is displayed as Set.

The scan tool displays Open or Closed. When the gearshift lever is in the park position, Closed is displayed.

The scan tool displays On or Off. The BCM monitors the signal circuit of the passenger door ajar switch. An open switch is displayed as On with the door open.

The scan tool displays 0.0-999.9 mph (0.0-999.9 km/h). The DIC calculates the average speed from the personal trip distance and time.

The scan tool displays 0.0-9999.9 gallons (0.0-9999.9 liters). The DIC calculates the personal trip fuel used based on the class 2 message from the PCM.

The scan tool displays 0.0-999999.9 miles (0.0-999999.9 kilometers). The distance travelled is determined using the 4 kpm vehicle speed signal circuit from the PCM.

The scan tool displays 0-100 percent. The DIC calculates the personal trip percent of annual mileage from the total personal mileage travelled and the annual mileage travelled.

The scan tool displays Fuel, Trip, Re/Set, Fuel Econ. The selected personalization feature is displayed.

The scan tool displays the PRNDL display of the vehicle. This is the state of the PRNDL range as communicated to the IPC by the PCM. The value of this data corresponds to the PRNDL display.

The scan tool displays On or Off. This is the state of the RAP relay as monitored by the BCM.

The scan tool displays a value range of 1-31 days. The scan tool displays the current day of the DIC real time clock.

The scan tool displays a value range of 1-12 hours. The scan tool displays the current hour of the DIC real time clock.

The scan tool displays a value range of 00-59 minutes. The scan tool displays the current minute of the DIC real time clock.

The scan tool displays all calendar months (JAN to DEC). The scan tool displays the current month of the DIC real time clock.

The scan tool displays a value range of 00-59 seconds. The scan tool displays the current second of the DIC real time clock.

The scan tool displays a value range of 00-99 years. The scan tool displays the current year of the DIC real time clock.

The scan tool displays Inactive or Active. This is the state of the Reduced Engine Power indicator as commanded by the IPC in the message center.

The scan tool displays Inactive or Active. This is the state of the Reduced Engine Power indicator as monitored by the PCM.

The scan tool displays On or Off. The DIC monitors the signal circuit of the Reset button of the DIC switch. A closed switch is displayed as On.

The scan tool displays On or Off. The DIC monitors the signal circuit of the Right Arrow button of the DIC switch. A closed switch is displayed as On.

The scan tool displays On or Off. The BCM monitors the signal circuit of the right rear door ajar switch. An open switch is displayed as On with the door open.

The scan tool displays On or Off. The BCM monitors the right turn signal control circuit and displays On when the right turn signal switch is activated.

The scan tool displays 9-12 volts. This is the vehicle Run/Accy/Rap voltage.

The scan tool displays Yes or No. This is the state of the driver seat belt as monitored by the BCM, where an open seat belt switch is displayed as Yes.

The scan tool displays On or Off. This is the state of the security lamp indicator as commanded by the IPC in the message center.

The scan tool displays On, Off or Flashing. This is the security lamp state as commanded by the BCM.

The scan tool displays On or Off. This is the state of the service 4WD indicator as commanded by the IPC.

The scan tool displays On or Off. This is the state of the service throttle soon indicator as commanded by the IPC.

The scan tool displays On or Off. This is the state of the Tow/Haul indicator as commanded by the IPC.

The scan tool displays On or Off. This is the state of trans fluid hot indicator as commanded by the IPC.

The scan tool displays On or Off. The IPC monitors the trip reset switch. A closed switch is displayed as On.

The scan tool displays On or Off. This is the state of the upshift lamp as commanded by the IPC.

The scan tool displays 0-255 km/h (0-159 mph). The BCM receives the vehicle speed information from the PCM 4 kpm vehicle speed signal circuit.

The scan tool displays 0-255 km/h (0-159 mph). The DIC receives the vehicle speed information from the PCM 4 kpm vehicle speed signal circuit.

The scan tool displays kilometers per hour (miles per hour). The IPC receives the vehicle speed from the PCM 4 kpm vehicle speed signal circuit.

The scan tool displays 0-255 km/h (0-159 mph). The PCM monitors the voltage at the signal circuit of the vehicle speed sensor. The voltage is proportional to the vehicle speed.

The scan tool displays 0-100%. The percentage of volume selected at the radio.

The scan tool displays On or Off. This is the state of the WAIT TO START indicator as displayed in the IPC.

The scan tool displays On or Off. This is the state of the water in fuel indicator in the message center as commanded by the IPC.