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HOMESERVICE MANUALSDODGE AND RAM2024DURANGO SRT HELLCAT PLUSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 88 (6.4L - DTCS P2017 TO P2110)DTC TROUBLESHOOTINGP2066 FUEL LEVEL SENSOR 2 PERFORMANCEENABLING/SET CONDITIONS AND POSSIBLE CAUSES - FUEL LEVEL SENSOR FAULTS
2024 Dodge and Ram Durango SRT Hellcat Plus

Enabling/Set Conditions And Possible Causes - Fuel Level Sensor Faults

2024 Dodge and Ram Durango SRT Hellcat PlusSECTION Enabling/Set Conditions And Possible Causes - Fuel Level Sensor Faults
WARNING: This page is about a different variant/trim than selected.

When Monitored - Circuit Faults (P0462, P0463, P2067, P2068, P2065-11, P2065-15): 

These diagnostics run when the following conditions are met:

  • With the ignition on.
  • Battery voltage above 10.4 volts.
  • No active fuel level missing message faults (PCM only).

When Monitored - Rationality Faults (P0461, P2066): 

These diagnostics run when the following conditions are met:

Single Tank System: 

  • With the engine running for more than two minutes.
  • After the PCM decides that a calibrated amount of fuel should have been consumed (between approximately one and five gallons depending on initial fuel level).
    • This is determined by the accumulated amount of fuel injected into the engine through the Fuel Injectors.

Saddle Tank System: 

  • The primary level rationality diagnostic runs when the Fuel Level Sensor 2 (Secondary) is reading empty.
  • The secondary level rationality diagnostic runs when the Fuel Level Sensor 1 (Primary) is reading full.

Dual Tank System: 

  • The primary level rationality diagnostic functions the same as the Single Tank System.
  • The secondary level rationality diagnostic runs when a fuel transfer event is occurring.
FAULT SETTING CRITERIA
Circuit Low/High Faults - (P0462, P0463, P2067, P2068, P2065-11, P2065-15) 
  • Circuit Low - The Fuel Level Sensor signal voltage is below approximately 0.2 volts for more than 3.2 seconds.
  • Circuit High - The Fuel Level Sensor signal voltage is above approximately 4.9 volts for more than 3.2 seconds.
Rationality Faults - Single Tank Systems  When the PCM does not detect a change in fuel level of greater than 0.06 volts after the calibrated amount of fuel should have been consumed the diagnostic will fail.
Rationality Faults - Saddle Tank Systems 
  • Primary Fault (P0461) - If the PCM does not detect a change in Fuel Level Sensor 1 of greater than 0.06 volts after the calibrated amount of fuel should have been consumed the diagnostic will fail.
  • Secondary Fault (P2066) - If the PCM does not detect a change in Fuel Level Sensor 2 of greater than 0.06 volts after the calibrated amount of fuel should have been consumed the diagnostic will fail.
Rationality Faults - Saddle Tank Systems 
  • Primary Fault (P0461) - If the PCM does not detect a change in fuel level of greater than 0.06 volts after the calibrated amount of fuel should have been consumed the diagnostic will fail.
  • Secondary Fault (P2066) - No change in Fuel Level Sensor 2 circuit voltage after a significant amount of fuel should have been transferred from the Auxiliary Fuel Tank to the Primary Fuel Tank.

Default Actions: 

  • The MIL is illuminated.
Possible Causes - Circuit Faults
FUEL LEVEL SENSOR HARNESS CONNECTOR DAMAGED OR NOT CONNECTED COMPLETELY
FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO GROUND (CIRCUIT LOW FAULT)
FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR RETURN CIRCUIT (CIRCUIT LOW FAULT)
FUEL LEVEL SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE (CIRCUIT HIGH FAULT)
FUEL LEVEL SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE (CIRCUIT HIGH FAULT)
FUEL LEVEL SENSOR RETURN CIRCUIT OPEN/HIGH RESISTANCE (CIRCUIT HIGH FAULT)
FAULTY FUEL LEVEL SENSOR
FAULTY BODY CONTROL MODULE (BCM)
Possible Causes - Rationality Faults
FUEL LEVEL SENSOR HARNESS CONNECTOR DAMAGED OR NOT CONNECTED COMPLETELY
FUEL TANK DAMAGED
OBSTRUCTION TO THE PRIMARY OR SECONDARY FUEL LEVEL SENSOR
PRIMARY OR SECONDARY FUEL LEVEL SENSOR FAULTY OR BROKEN
SECONDARY PUMP OR SIPHON TUBE LEAKING OR DISCONNECTED (SADDLE TANK SYSTEM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.