What does code P1455 mean?

Q: What does code P1455 mean?

Exhaust Gas Temperature Sensor 1 Range Performance. P1455 on Volkswagen vehicles means the engine control module (ECM) has detected that exhaust gas temperature sensor 1 is not reporting a plausible temperature range during the expected operating conditions. The ECM compares the sensor signal against a modeled exhaust temperature and flags the code when the sensor's performance falls outside the allowed range for too long.

DTC codes / Volkswagen codes / P1455

P1455 · VolkswagenExhaust Gas Temperature Sensor 1 Range Performance

P1455 on Volkswagen vehicles means the engine control module (ECM) has detected that exhaust gas temperature sensor 1 is not reporting a plausible temperature range during the expected operating conditions. The ECM compares the sensor signal against a modeled exhaust temperature and flags the code when the sensor's performance falls outside the allowed range for too long.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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