What does code P26E1 mean?

Q: What does code P26E1 mean?

Sensor Power Supply D Circuit High. P26E1 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the sensor power supply D circuit, which is a dedicated 5-volt reference feed shared by multiple sensors. The PCM monitors this circuit and sets the code when the voltage exceeds the expected range, typically because the circuit is shorted to voltage or a sensor on that supply is drawing excessive current.

DTC codes / P26xx · Computer and output circuits / P26E1

P26E1Sensor Power Supply D Circuit High

P26E1 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the sensor power supply D circuit, which is a dedicated 5-volt reference feed shared by multiple sensors. The PCM monitors this circuit and sets the code when the voltage exceeds the expected range, typically because the circuit is shorted to voltage or a sensor on that supply is drawing excessive current.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

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