What does code P2A4E mean?

Q: What does code P2A4E mean?

Alternative Fuel Temperature Sensor Circuit High. P2A4E means the powertrain control module (PCM) sees a voltage on the alternative fuel temperature sensor circuit that is higher than the expected range, usually because the signal wire is shorted to voltage or the sensor's ground path is open. The PCM uses this sensor to monitor the temperature of the alternative fuel (such as compressed natural gas or ethanol) so it can adjust fuel delivery and protect components, and a high signal forces it into a default strategy.

DTC codes / P2Axx · Hybrid propulsion / P2A4E

P2A4EAlternative Fuel Temperature Sensor Circuit High

P2A4E means the powertrain control module (PCM) sees a voltage on the alternative fuel temperature sensor circuit that is higher than the expected range, usually because the signal wire is shorted to voltage or the sensor's ground path is open. The PCM uses this sensor to monitor the temperature of the alternative fuel (such as compressed natural gas or ethanol) so it can adjust fuel delivery and protect components, and a high signal forces it into a default strategy.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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