What does code P26F1 mean?

Q: What does code P26F1 mean?

Starter Relay A Stuck Off. P26F1 means the engine control module (ECM) commanded the starter relay on, but the circuit remained electrically open or the relay contacts stayed open, so no current reached the starter solenoid. The ECM detects this by monitoring the relay control circuit and the starter current feedback, and it sets the code when the expected voltage or current signature is missing during a crank request.

DTC codes / P26xx · Computer and output circuits / P26F1

P26F1Starter Relay A Stuck Off

P26F1 means the engine control module (ECM) commanded the starter relay on, but the circuit remained electrically open or the relay contacts stayed open, so no current reached the starter solenoid. The ECM detects this by monitoring the relay control circuit and the starter current feedback, and it sets the code when the expected voltage or current signature is missing during a crank request.

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.