Scan Tool Data Definitions
- Battery 1
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The scan tool displays 0-19 volts. The battery voltage as monitored by the ECM.
- Coolant Gauge Position
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The scan tool displays 0-100%. The BCM receives a serial data message from the PCM/ECM regarding the engine coolant temperature and converts the data to percentage.
- Driver Door Switch
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The scan tool displays High or Low. The state of the driver door switch as commanded by the BCM.
- ECT
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The scan tool displays -40 to +151°C (-40 to +304°F). The ECM 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 Left (3.0L)
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The scan tool displays 0-100%. The ECM calculates the remaining engine oil life.
- Engine Oil Life Remaining (2.2L)
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The scan tool displays 0-100%. The PCM calculates the remaining engine oil life.
- Engine Speed
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The scan tool displays 0-9999 RPM. Engine speed is computed by the ECM. It should remain close to desired idle under various engine loads with the engine idling.
- Fuel Gauge Position
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The scan tool displays 0-100%. The BCM calculates the amount of fuel remaining in the tank based on the serial data messages from the ECM/PCM regarding fuel level.
- Fuel Level
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The scan tool displays the amount of fuel left in Gallons or Liters. The ECM/PCM calculates the amount of fuel remaining in the tank based on the input from the fuel level sensor.
- Fuel Level Sensor (3.0L)
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The scan tool displays the state of the fuel level in Volts. The ECM monitors the signal circuit of the fuel level sensor and displays the current voltage.
- Key in Ignition
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The scan tool displays Yes or No. The state of the key in ignition switch as commanded by the BCM.
- Liftgate Ajar Switch
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The scan tool displays High or Low. The state of the liftgate switch as monitored by the BCM.
- Low Brake Fluid
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The scan tool displays Yes or No. The state of the brake fluid level switch as commanded by the BCM.
- Low Coolant
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The scan tool displays Yes or No. The state of the coolant level switch as commanded by the BCM.
- Low Oil Pressure
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The scan tool displays Yes or No. The state of the engine oil pressure sensor as commanded by the ECM.
- Low Oil Pressure Switch
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The scan tool displays Open or Closed. The state of the engine oil pressure switch as commanded by the ECM.
- Oil Life Reset Switch
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The scan tool displays High or Low. The BCM calculates the remaining engine oil life.
- Pass Door Switches
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The scan tool displays High or Low. The state of the passenger door switches as monitored by the BCM.
- Software Date-Day
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The scan tool displays the day the software was created for the BCM installed in the vehicle.
- Software Date-Month
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The scan tool displays the month the software was created for the BCM installed in the vehicle.
- Software Date-Year
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The scan tool displays the year the software was created for the BCM installed in the vehicle.
- Software ID
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The scan tool displays a numeric value. The identification of the BCM software installed in the vehicle.
- Vehicle Speed
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The scan tool displays 0-255 km/h (0-155 mph). The ECM/PCM monitors the signal circuit of the vehicle speed sensor.