DTC codes / P26xx · Computer and output circuits / P26E0
P26E0 indicates that the powertrain control module has detected an abnormally low voltage on the sensor power supply D circuit, which is a dedicated 5-volt reference feed shared by multiple sensors. The computer compares the expected voltage on this circuit to the actual value and sets the code when the signal falls below the calibrated threshold, typically indicating a short to ground or an excessive current draw.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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