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Lexus
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2002
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ES 300 V6-3.0L (1MZ-FE)
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Component Tests and General Diagnostics
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Heater Relay Circuit
Heater Relay Circuit
CIRCUIT DESCRIPTION
The heater relay is switched on by signals from the A/C amplifier. It supplies power to the
blower motor
.
Wiring Diagram:
Step 1 - 3:
Step 3 (Continued) - 4:
INSPECTION PROCEDURE