Pinpoint Test C: P0504, P0572, P0573, P1703 Or P1935: Notes
WARNING: This page is about a different car, the 2021 Ford F-150. 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
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PCM P0504:00 | Brake Switch "A"/"B" Correlation: No Sub Type Information | 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. |
| PCM P0572:00 | Brake Switch "A" Circuit Low: No Sub Type Information | 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. |
| PCM P0573:00 | Brake Switch "A" Circuit High: No Sub Type Information | 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. |
| PCM P1703:00 | Brake Switch Out Of Self Test Range: No Sub Type Information | 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. |
| PCM P1935:00 | Brake Switch/Sensor Signal: No Sub Type Information | A DTC that sets when the PCM does not receive the brake switch input on the brake switch signal circuit to deactivate the cruise control. |
Possible Sources
- Wiring, terminals or connectors
- Fuse 7 (10A)
- Stoplamp switch
- PCM