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Home >> Lexus >> 2007 >> LS 460 V8-4.6L (1UR-FSE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Component Tests and General Diagnostics >> PTC Heater Circuit

PTC Heater Circuit

PTC Heater Circuit

DESCRIPTION
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.

Wiring Diagram:






Step 1-2:




Step 3:




Step 4:




Step 5-6:




INSPECTION PROCEDURE
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