PINPOINT TEST B : P0504, P0572, P0573, Or P1703: Notes

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Cruise Control for schematic and connector information.

Normal Operation and Fault Conditions

Refer to Cruise Control , Brake Switch.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Conditions
P0504	Brake Switch A / B Correlation	A DTC that sets when the PCM does not sense the correct sequence of the brake pedal input signal from both the cruise control deactivator and stoplamp switches when the brake pedal is pressed and released.
P0572	Brake Switch A Circuit Low	A DTC that sets when the PCM detects an open in the stoplamp switch signal. The PCM monitors the vehicle speed, the engine speed, the engine torque and the stoplamp input during start and stop driving cycles. If the stoplamp switch input to the PCM is always off during start and stop driving cycles, this DTC sets in continuous memory.
P0573	Brake Switch A Circuit High	A DTC that sets when the PCM detects a short to voltage on the stoplamp switch signal. The PCM monitors the vehicle speed, the engine speed, the engine torque and the stoplamp switch input during start and stop driving cycles. If the stoplamp lamp switch input to the PCM is always on during start and stop driving cycles, this DTC sets in continuous memory.
P1703	Brake Switch Out Of Self -Test Range	A DTC that sets in the PCM during the self-test, when the stoplamp switch input signal is high or does not cycle high and low.