Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHRYSLER1999300M V6-3.5L VIN GREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONDIAGNOSTIC TROUBLE CODE DESCRIPTIONSP CODESCODE DESCRIPTIONS & POSSIBLE CAUSESP0463 FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
1999 Chrysler 300M V6-3.5L VIN G
P0463 Fuel Level Sending Unit Volts Too High
1999 Chrysler 300M V6-3.5L VIN GSECTION P0463 Fuel Level Sending Unit Volts Too High
NAME OF CODE
Fuel Level Sending Unit Volts Too High
WHEN MONITORED
Ignition on.
SET CONDITION
The fuel level sensor signal circuit voltage at the BCM goes above 4.8 volts.
THEORY OF OPERATION
The voltage at the fuel level sending unit sends a variable voltage to the body 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 fuel levels.
POSSIBLE CAUSES
- Open sensor signal circuit
- Fuel level sending unit failure
- Connector wires
- Connector terminals
- BCM Failure
Fuel Level Sending Unit Volts Too High
WHEN MONITORED
Ignition on.
SET CONDITION
The fuel level sensor signal circuit voltage at the BCM goes above 4.8 volts.
THEORY OF OPERATION
The voltage at the fuel level sending unit sends a variable voltage to the body 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 fuel levels.
POSSIBLE CAUSES
- Open sensor signal circuit
- Fuel level sending unit failure
- Connector wires
- Connector terminals
- BCM Failure
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.