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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 107 (Air Conditioning System (Manual) (Diagnostic Codes & Circuit Tests)) >> AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) >> PTC Heater Circuit >> Description

PTC Heater Circuit: Description

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PTC heater relays are closed in accordance with signals from the air conditioning amplifier and power is supplied to the PTC heater installed on the radiator heater unit.

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