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.
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 .
NO RELATED
Use the Manual With the Right Hardware
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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.