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Home >> Lexus >> 1996 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Component Tests and General Diagnostics >> Heater Main Relay Circuit
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Heater Main Relay Circuit



Circuit Description
The heater relay is switched on by signals from the air conditioning control assembly. It supplies power to the blower motor.

Wiring Diagram:





Inspection Procedure

Step 1:





Step 2:





Step 3:




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