The control module detected that the signal in the Engine Coolant Bypass Valve D Control circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.15
P26BF Engine Coolant Bypass Valve D Control Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P26BF means
Related and nearby codes
How to read P26BF
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P26BF
What does P26BF mean?
Engine Coolant Bypass Valve D Control Circuit High. The control module detected that the signal in the Engine Coolant Bypass Valve D Control circuit stayed above the expected operating range.
Is P26BF generic or manufacturer-specific?
P26BF is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P26BF at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
