Seville V8-273 4.5L (1989)
Status Lights
Data Parameters
BD20
The commanded blower voltage is read in volts from -2.9 to 18.0 Volts.
BD21
The coolant temperature is displayed in degrees Celsius (°C) from -40° to 151°C. This value is sent from the ECM to the BCM. If this circuit
malfunctions as determined by the ECM, the ECM will send the BCM a "Failsoft" value for display.
