The P012B is a generic OBD-II powertrain trouble code. Its official definition is “Turbocharger/Supercharger Inlet Pressure Sensor – Circuit Range/Performance”.
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The P012A is a generic OBD-II powertrain trouble code. Its official definition is “Turbocharger/Supercharger Inlet Pressure Sensor Circuit”.
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The P0129 fault code, applicable to all car manufacturers, means that the atmospheric pressure is too low.