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Home >> Lexus >> 1999 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Control Module HVAC >> Testing and Inspection >> Back-Up Power Source Circuit
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Back-Up Power Source Circuit

CIRCUIT DESCRIPTION

This is the back-up power source for the A/C control assembly. Power is supplied even when the ignition switch is off and is used for DTC memory, etc.




WIRING DIAGRAM

Step 1:




Step 2:




INSPECTION PROCEDURE
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