DTC B1350 is designed in order to disengage the A/C compressor clutch in the event that the coolant temperature exceeds 126°C (258°F). The heater and A/C programmer receives the coolant temperature information from the PCM via the class 2 serial data bus. While DTC B1350 is current the IPC displays ENGINE HOT -- A/C COMPRESSOR OFF on the DIC in order to warn the operator.