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Home >> Toyota >> 2011 >> Matrix Base, Automatic >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System (Diagnostic Codes (B1412 - B1499) & Circuit Tests) >> Air Conditioning System >> Circuit Tests >> Back-up Power Source Circuit >> Description

Back-up Power Source Circuit: Description

The back-up power source circuit for the A/C amplifier is shown below. Power used for DTC memory etc. is supplied even when the ignition switch is turned off.

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