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Home >> Ford >> 2007 >> Mustang Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 95 (Cruise Control System) >> Diagnostic Tests >> Speed Control >> Pinpoint Tests >> Pinpoint Test B: DTC P1703 - Brake Switch Out of Self-Test Range >> Normal Operation
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Normal Operation

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

When the brake pedal is applied, the stoplamp switch supplies voltage to the stoplamps through circuit 511 (LG). This signal is also supplied to the PCM to indicate the brake pedal is applied. When the PCM senses the voltage from the stoplamp switch, the speed control is deactivated.

The speed control deactivator switch interrupts the power signal to the 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.

DTC P1703 - sets when there is an open or short in the deactivator switch circuits or when there is an open or short in the stoplamp circuits.

Possible Causes

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