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Home >> Mercury >> 2009 >> Sable Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 577 (Cruise Control System) >> Diagnosis And Testing >> Speed Control >> Pinpoint Tests >> Pinpoint Test B: DTC P1703 or DTC P1572 - Brake On/Off Circuit Failure >> Normal Operation
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Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

The speed control deactivator switch interrupts the power signal to the powertrain control module (PCM) through circuit 307 (BK/YE) when the brake pedal is applied firmly and passes the stoplamp switch trip point. This is a redundant signal to the PCM.

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