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P2B79
Coolant Heater B Control Circuit Performance
Generic · engine
Data confidence
65%
The control module judged the Coolant Heater B Control behaviour implausible for the current operating conditions.
TuningBot DTC Database · v4.37.15
P2B79 Coolant Heater B Control Circuit Performance
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2B79 means
Related and nearby codes
How to read P2B79
P
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
B79
Specific fault index within the subsystem.
Frequently asked questions about P2B79
What does P2B79 mean?
Coolant Heater B Control Circuit Performance. The control module judged the Coolant Heater B Control behaviour implausible for the current operating conditions.
Is P2B79 generic or manufacturer-specific?
P2B79 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2B79 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