Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
0B6
Specific fault index within the subsystem.
Frequently asked questions about P20B6
What does P20B6 mean?
Reductant metering unit heater - control performance problem. The control module judged the Reductant metering unit heater - control behaviour implausible for the current operating conditions.
Is P20B6 generic or manufacturer-specific?
P20B6 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P20B6 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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