What does code P26B3 mean?

Q: What does code P26B3 mean?

Fuel Shutoff Valve A Control Circuit Performance/Stuck Off. P26B3 indicates that the powertrain control module (PCM) has detected a performance fault in the control circuit for Fuel Shutoff Valve A, meaning the valve is not responding as commanded or is stuck in the off position. The PCM monitors the circuit and expects the valve to change state when energized or de-energized, but the feedback or electrical signature does not match the expected behavior.

DTC codes / P26xx · Computer and output circuits / P26B3

P26B3Fuel Shutoff Valve A Control Circuit Performance/Stuck Off

P26B3 indicates that the powertrain control module (PCM) has detected a performance fault in the control circuit for Fuel Shutoff Valve A, meaning the valve is not responding as commanded or is stuck in the off position. The PCM monitors the circuit and expects the valve to change state when energized or de-energized, but the feedback or electrical signature does not match the expected behavior.

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.