What does code P1140 mean?

Q: What does code P1140 mean?

Bank 2 Sensor 2 Resistance Too High. P1140 on Volkswagen vehicles means the engine control module has detected that the oxygen sensor heater circuit for Bank 2 Sensor 2 is drawing too much resistance, which usually indicates a failing heater element or a wiring problem. The computer monitors the heater current and flags the code when the circuit resistance exceeds the expected range for the sensor's temperature.

DTC codes / Volkswagen codes / P1140

P1140 · VolkswagenBank 2 Sensor 2 Resistance Too High

P1140 on Volkswagen vehicles means the engine control module has detected that the oxygen sensor heater circuit for Bank 2 Sensor 2 is drawing too much resistance, which usually indicates a failing heater element or a wiring problem. The computer monitors the heater current and flags the code when the circuit resistance exceeds the expected range for the sensor's temperature.

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.