What does code P26E6 mean?

Q: What does code P26E6 mean?

Starter Relay B Circuit High. P26E6 is a generic OBD-II code that indicates the engine control module (ECM) has detected an abnormally high voltage on the control circuit for starter relay B, which is often the secondary relay in a dual-relay starting system. The ECM commands the relay to engage the starter, but the voltage on the relay's control circuit remains higher than expected, suggesting a short to power, an open ground, or a faulty relay.

DTC codes / P26xx · Computer and output circuits / P26E6

P26E6Starter Relay B Circuit High

P26E6 is a generic OBD-II code that indicates the engine control module (ECM) has detected an abnormally high voltage on the control circuit for starter relay B, which is often the secondary relay in a dual-relay starting system. The ECM commands the relay to engage the starter, but the voltage on the relay's control circuit remains higher than expected, suggesting a short to power, an open ground, or a faulty relay.

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.