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Toyota Truck
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2006
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Highlander 2WD V6-3.3L (3MZ-FE)
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Component Tests and General Diagnostics
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Heater Main Relay Circuit
Heater Main Relay Circuit
Heater Relay Circuit
DESCRIPTION
The heater relay is switched on by signals from the A/C amplifier assembly. It supplies power to the
blower motor
.
Wiring Diagram:
Step 1:
Step 1(Continued)-3:
Step 4:
INSPECTION PROCEDURE