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Home >> Mercury >> 2007 >> Montego AWD V6-3.0L VIN 1 >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Pinpoint Tests >> Test B: DTC P1703 - Brake On/Off Circuit Failure
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Test B: DTC P1703 - Brake On/Off Circuit Failure

PINPOINT TEST B: DTC P1703 - BRAKE ON/OFF CIRCUIT FAILURE


B1-B2:






B2-B3:






B4-B6:






Normal Operation
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 speed control deactivator switch trip point. This is a redundant signal to the PCM.

Possible Causes
- Fuse
- Circuit 307 (BK/YE) open or short to voltage
- Circuit 1140 (VT) open
- Speed control deactivator switch
- PCM
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