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Home >> Ford >> 2005 >> Thunderbird >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC Control System - General Information >> Diagnosis And Testing >> Climate Control System >> Pinpoint Test A: No Communication With The Dual Automatic Temperature Control (DATC) Module >> Normal Operation
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Normal Operation

Under normal operation, the Dual Automatic Temperature Control (DATC) module receives battery voltage through circuit 29-FA10 (OG/GN) and ignition voltage through circuit 20-FA10 (PK/OG). A ground is provided for the DATC module through circuit 31-FA10 (BK).

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