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P26AB
Engine Coolant Bypass Valve A Stuck/Open
Generic · engine
Data confidence
65%
The control module registered the fault condition described as "Engine Coolant Bypass Valve A Stuck/Open".
TuningBot DTC Database · v4.37.15
P26AB Engine Coolant Bypass Valve A Stuck/Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P26AB means
Related and nearby codes
How to read P26AB
P
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
6AB
Specific fault index within the subsystem.
Frequently asked questions about P26AB
What does P26AB mean?
Engine Coolant Bypass Valve A Stuck/Open. The control module registered the fault condition described as "Engine Coolant Bypass Valve A Stuck/Open".
Is P26AB generic or manufacturer-specific?
P26AB is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P26AB 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