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Home >> Honda >> 2021 >> Pilot EX-L, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System / Engine Mechanical - Service, Testing & Troubleshooting >> System Description >> Auto Idle Stop (2019 2020 2021) >> Detail Information of the Control or Communication Signal >> Transmitting and received signals to/from climate control unit
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Transmitting and received signals to/from climate control unit

Target unit, sensor and switch Transmitting Signal Received Signal
ECON switch ECON ON/OFF mode selection signal -
Engine coolant temperature (ECT) sensor Engine warm-up information -
Windshield defrost button/switch Windshield defrost on/off signal -
Temperature and fan control button/switch (climate control unit) Cabin temperature and air volume setting information -
Outside air temperature sensor Outside air temperature information -
Rear A/C control panel Cabin temperature and air volume setting information -
Evaporator temperature sensor/in-car temperature sensor Air temperature adjustments made before and after -
Humidity sensor Humidity information in the cabin -
Sunlight sensor Sunlight information -
PCM - Auto idle stop implementation/prohibition determination information from the climate control system.