B1B78

System pressure

B1B76

Front left air blend stepper actuator

B1B75

Front foot-face mode stepper actuator

B1B74

Front foot-defrost mode stepper actuator

B1B73

Local interconnection network bus 2 power supply circuit

B1B72

Local interconnection network bus 1 - power supply circuit

B1B71

Evaporator temperature sensor

B1B70

Local interconnection network bus circuit 2

B1B69

12 volt supply circuit

B1B67

Air intake servo potentiometer circuit