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B1256 is a "malfunction in the refrigerant circuit". SDS says to check the refrigerant pressures and to check the evaporator temperature sensor and the refrigerant temp/pressure sensor.
B1269 is a a communication problem with the multi-function sensor. That sensor is located on the cabin intake, under the hood, passenger side.
Note that either of these can also be caused be a bad ACC module.
B1256 is a "malfunction in the refrigerant circuit". SDS says to check the refrigerant pressures and to check the evaporator temperature sensor and the refrigerant temp/pressure sensor.
B1269 is a a communication problem with the multi-function sensor. That sensor is located on the cabin intake, under the hood, passenger side.
Note that either of these can also be caused be a bad ACC module.
