What does code P26EB mean?

Q: What does code P26EB mean?

Alternative Fuel Control Module System Voltage. P26EB indicates that the alternative fuel control module has detected an abnormal voltage level on its power supply or internal reference circuit, which can disrupt the module's ability to manage alternative fuel components such as injectors or pressure regulators. The computer sets this code when the monitored voltage falls outside the manufacturer's expected range for a calibrated time, often signaling a wiring, connection, or module fault rather than a fuel system issue.

DTC codes / P26xx · Computer and output circuits / P26EB

P26EBAlternative Fuel Control Module System Voltage

P26EB indicates that the alternative fuel control module has detected an abnormal voltage level on its power supply or internal reference circuit, which can disrupt the module's ability to manage alternative fuel components such as injectors or pressure regulators. The computer sets this code when the monitored voltage falls outside the manufacturer's expected range for a calibrated time, often signaling a wiring, connection, or module fault rather than a fuel system issue.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.