What does code P1107 mean?

Q: What does code P1107 mean?

Oxygen Sensor Heating Circuit Bank 2 Sensor 1 Short To B+. P1107 on Volkswagen vehicles means the engine control module (ECM) has detected a short to battery voltage in the oxygen sensor heater circuit for Bank 2 Sensor 1, which is the upstream sensor on the cylinder bank that does not contain cylinder 1. The ECM monitors the heater control circuit and flags this code when the voltage on the control side is higher than expected, indicating the wire is touching a power source or the heater element has failed internally.

DTC codes / Volkswagen codes / P1107

P1107 · VolkswagenOxygen Sensor Heating Circuit Bank 2 Sensor 1 Short To B+

P1107 on Volkswagen vehicles means the engine control module (ECM) has detected a short to battery voltage in the oxygen sensor heater circuit for Bank 2 Sensor 1, which is the upstream sensor on the cylinder bank that does not contain cylinder 1. The ECM monitors the heater control circuit and flags this code when the voltage on the control side is higher than expected, indicating the wire is touching a power source or the heater element has failed internally.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.