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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 495 (HVAC Control System-General Information And Diagnostics - F250-F550 Super Duty) >> Diagnosis And Testing >> Climate Control System >> Pinpoint Tests >> Pinpoint Test P: No Operation In High Blower Setting - Manual Climate Control >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Under normal operation, in HI, the blower motor is grounded directly through the blower switch from circuit 261 (OG/BK). The blower switch receives its ground from circuit 57 (BK).

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