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Home >> Toyota >> 2016 >> Highlander Limited, FWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System (Manual A/C) - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) >> Circuit Tests >> IG Power Source Circuit [12/2013 - ] >> Description

IG Power Source Circuit [12/2013 - ]: Description

Power source voltage is supplied to the air conditioning amplifier assembly when the Ignition switch is ON. This power is used for operating the air conditioning amplifier assembly, servo motors, etc.