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Home >> Jeep >> 2020 >> Grand Cherokee Laredo, AWD, Automatic T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0440 To P04CE >> DTC Troubleshooting >> P0461-Fuel Level Sensor 1 Performance >> Possible Causes

Possible Causes

Possible Causes
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)

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



Possible Causes
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  .