The control module judged the Coolant Pump "B" Control signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.
TuningBot DTC Database · v4.37.15
P261B Coolant Pump "B" Control Circuit Range/Performance
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P261B means
Related and nearby codes
How to read P261B
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 P261B
What does P261B mean?
Coolant Pump "B" Control Circuit Range/Performance. The control module judged the Coolant Pump "B" Control signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.
Is P261B generic or manufacturer-specific?
P261B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P261B 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
