Change Engine Oil Lamp: The scan tool displays On/Off. The state of the CHANGE OIL SOON
indicator in the DIC as commanded by the PCM.
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 Hot Lamp Command: The scan tool displays On/Off. The state of the TEMP indicator
as commanded by the PCM.
Engine Oil Level Switch: The scan tool displays OK/Low. The PCM monitors the signal circuit
of the engine oil level switch, where an open switch is displayed as Low.
Engine Oil Life Remaining: The scan tool displays 0-100%. The PCM calculates the remaining
engine oil life.
Engine Speed: 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.
Fuel Tank Level Remaining: The scan tool displays 0-100%. The PCM calculates the amount
of fuel remaining in the tank based on the input from the fuel level sensor.
Generator Lamp Command: The scan tool displays On/Off. The state of the charge indicator
as commanded by the PCM.
Ignition 1 Signal: The scan tool displays 0-25.5 volts. The PCM displays the
voltage at the ignition 1 input.
Low Oil Lamp Command: The scan tool displays On/Off. The state of the Low Oil Level indicator
as commanded by the PCM.
MIL Command: The scan tool displays On/Off. The state of the MIL indicator as
commanded by 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.