air handling module. The battery pulls cool air from the air box using Duct A. The battery discharges warm/hot air into the air box using Duct B. The parts are as follows... A- Cool air inlet to battery B- Warm air outlet from battery C- Expansion Valve D- Evaporator E- Exterior air inlet filter F- Temperature blend door actuator G- Outside air inlet H- Evaporator temperature sensor This system can run the A/C compressor to aid cooling via refrigeration. If the driver has not asked for A/C, a solenoid valve (Figure 9) is used to block refrigerant flow to the front evaporator. The fresh air inlet can also be blocked and the HV Battery ECM controls blower speed. Pro Tip: Your scan tool may not give you a bi-directional control option to activate the battery cooling fan. Requesting the HV Battery trouble codes activates the self-diagnostics, and the fan will run at MAXIMUM speed for 5-10 seconds. Figure 8: 2007 Ford Escape High Voltage Battery air cooling module. provide cool air to the battery cooling system may be all that is necessary. I would also mention again that any time their battery is overheated, damage is done...however small the amount. Figure 8 shows the air handling module of the HV Battery Cooling System on an '07 Ford Escape. This system can increase HV battery cooling capacity by using the HVAC refrigeration system. The battery blower fan is located inside the battery case. My hand is holding the union duct that connects the air inlet and outlet of the battery pack to the April 2022 7 Rodents!! They love warm places and seek them out. Those of us working in cold climates are used to this. From mouse nests in engine air filter boxes or under beauty covers, to chewed wiring and nests in vehicle cabins, the damage can be substantial and costly. Many people are driving substantially fewer clicks (Km) thanks to Covid (I hate that word!) and rodents are taking full advantage, turning parked vehicles into luxury homes. We have had numerous instances here and helping others over the phone with Hybrid Battery overheating caused by mice. MACS Service Reports Mike Bailey