Volkswagen Audi Error Code P1105: How to Fix It

Q: Can I drive my Volkswagen or Audi with error code P1105?

You can drive short distances, but the vehicle may have poor fuel economy and fail emissions tests. The check engine light will remain on, and prolonged driving may cause catalytic converter damage.

Q: What causes P1105 error code in VW and Audi vehicles?

Common causes include damaged oxygen sensor wiring from heat exposure, failed oxygen sensor heater element, corroded electrical connections, or rarely, ECU malfunctions.

Q: How much does it cost to fix P1105 error code?

Costs range from $50-150 for DIY wiring repairs to $200-400 for oxygen sensor replacement at a shop. Professional diagnosis typically costs $100-150.

Q: Will P1105 cause my car to fail inspection?

Yes, P1105 will cause your vehicle to fail emissions testing in most states because it indicates a malfunctioning oxygen sensor that affects emissions control.

Q: How do I know if it's the sensor or wiring causing P1105?

Test the oxygen sensor resistance with a multimeter. If resistance is normal (2-14 ohms) but you still get P1105, the problem is likely in the wiring harness or ECU.

Abstract

Error code P1105 in Volkswagen and Audi vehicles indicates a short circuit to positive voltage in the Bank 1 Sensor 2 oxygen sensor heater circuit. This downstream O2 sensor heater malfunction can cause poor fuel economy and failed emissions tests. The issue typically involves damaged wiring, a faulty oxygen sensor, or ECU problems.