What does code P25DA mean?

Q: What does code P25DA mean?

Fuel Level Sensor C Circuit High. P25DA indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the fuel level sensor C circuit, which is typically a secondary or auxiliary fuel level sensor used in vehicles with multiple tanks or a saddle-style fuel tank. The PCM expects the sensor signal voltage to stay within a calibrated range, and a high reading usually means the circuit is open, shorted to voltage, or the sensor's internal resistance has increased beyond specification.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25DA

P25DAFuel Level Sensor C Circuit High

P25DA indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the fuel level sensor C circuit, which is typically a secondary or auxiliary fuel level sensor used in vehicles with multiple tanks or a saddle-style fuel tank. The PCM expects the sensor signal voltage to stay within a calibrated range, and a high reading usually means the circuit is open, shorted to voltage, or the sensor's internal resistance has increased beyond specification.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

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