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Home >> Lexus >> 2008 >> IS 350 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning >> Air Conditioning System >> PTC Heater Circuit >> Description

PTC Heater Circuit: Description

The GLW RLY turns on when it receives a signal from the A/C amplifier. As a result, power is supplied to the heater glow plug.

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