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.
DTC P0461/16845 - Fuel Level Sensor Circuit Range/Performance
1996 Audi A4 Base, StandardSECTION DTC P0461/16845 - Fuel Level Sensor Circuit Range/Performance
NOTE:
DTC is set with ignition on when voltage signal is more than 10.8 volts for more than 15 seconds. If fuel level in fuel tank is too low (less than 3.2 gallons), combustion misfire, HO2S and fuel system malfunctions can occur. If any of these malfunctions occur, DTC P0461/16845 is also set.
- Ensure PCM coding is correct. See PCM CODING in this article. Ensure fuel tank contains more than 3.2 gallons of fuel. Ensure fuel gauge in instrument cluster if functioning properly. Correct problems as necessary. Erase DTC memory and test drive vehicle.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connectors. Connect VAG 1598/19 test box to PCM wiring harness. Terminal assignments of test box are identical to PCM connectors "A", "B", "C", "D" and "E".
- Using DVOM, check wiring harness between PCM and instrument cluster. See WIRING DIAGRAMS section. Repair wiring harness as necessary. Erase DTC memory and test drive vehicle.
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.