Neon L4-2.0L SOHC (1995)
Fuel Gauge Sender: Description and Operation
Fuel Level Sending Unit Voltage Too Low
NAME OF CODE:
Fuel Level Sending Unit Volts Too Low
WHEN MONITORED:
Ignition ON.
SET CONDITION:
The fuel level sensor signal circuit voltage at Powertrain Control Module (PCM) cavity 13 goes below 0.75 volt.
THEORY OF OPERATION:
The voltage at the fuel level sending unit sends a variable voltage to the powertrain control module to indicate fuel level. The purpose of this
feature is to prevent false setting of misfire and fuel system monitor codes when the vehicle is operating at low speeds.
POSSIBLE CAUSES:
-
Sensor signal circuit shorted to ground
-
Fuel level sending unit failure
-
Loss of fuel ignition switch output voltage
-
Instrument cluster printed circuit board failure
-
Powertrain control module
