Txv Solenoid

The TXV solenoid allows refrigerant to flow to the rear evaporator when two conditions exist:
1. the HVAC control module is providing an A/C request.
2. the auxiliary blower motor is in operation by either the auxiliary HVAC control module or auxiliary blower motor switch.

Power is provided to the TXV solenoid on the ignition 3 voltage circuit. Ground is provided by the TXV solenoid control, auxiliary HVAC control module, the auxiliary blower motor speed control circuits, the auxiliary blower motor switch and ground circuit.