TuningBot DTC Database · v4.37.15
Manufacturer-specific interpretation for BMW. All interpretations of P166A
The control module detected improper operation of the Battery temperature circuit. This is the manufacturer-specific definition used by BMW.
Battery temperature sensor
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Battery temperature sensor circuit. The control module detected improper operation of the Battery temperature circuit. This is the manufacturer-specific definition used by BMW.
P166A is a manufacturer-specific code. In this database it is documented for: BMW. The same number can mean something different on other brands.
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.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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