What does code P26E5 mean?

Q: What does code P26E5 mean?

Starter Relay B Circuit Low. P26E5 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for starter relay B, which is the secondary relay in a dual-relay starter system used on some vehicles. The PCM commands the relay on by supplying voltage or ground, and when the circuit voltage stays below the expected threshold, the code is stored and the starter may not engage.

DTC codes / P26xx · Computer and output circuits / P26E5

P26E5Starter Relay B Circuit Low

P26E5 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for starter relay B, which is the secondary relay in a dual-relay starter system used on some vehicles. The PCM commands the relay on by supplying voltage or ground, and when the circuit voltage stays below the expected threshold, the code is stored and the starter may not engage.

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.