OBD-II Body Error Code B1103: How to Fix It

Q: Can I drive with error code B1103?

Yes, you can typically drive with this error code as it affects the fuel gauge accuracy but not engine performance. However, you'll need to manually track your fuel consumption until the issue is resolved.

Q: How much does it cost to fix a B1103 error code?

Repair costs range from $200-600 depending on whether you need a new fuel pump assembly ($150-400) or just electrical repairs. Labor costs vary by location and vehicle accessibility.

Q: Will B1103 cause my car to fail inspection?

In most areas, B1103 will not cause an emissions test failure since it's a body control module code, not an engine/emissions code. However, check your local inspection requirements to be sure.

Q: Can a bad fuel pump cause code B1103?

While B1103 specifically relates to the fuel level sensor signal, a failing fuel pump assembly can affect the integrated fuel level sensor, potentially triggering this code alongside fuel delivery issues.

Q: How do I prevent B1103 from happening again?

Keep your fuel tank at least 1/4 full to prevent the fuel pump from overheating, use quality fuel to minimize contamination, and have regular maintenance to catch electrical issues early.

Abstract

Error code B1103 indicates your vehicle's fuel level sensor is sending a low signal to the body control module. This typically means the fuel level sensor is faulty, has loose connections, or there's an issue with the wiring harness.