For 5.0L, REFER to: Powertrain Control Module (PCM) (303-14C Electronic Engine Controls - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Removal and Installation).
No | The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. |
|---|
P0504, P0572, P0573 OR P1703
Refer to Wiring Diagrams Cell 31 for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Cruise Control - System Operation and Component Description (419-03B Cruise Control - Vehicles With: Adaptive Cruise Control, Description and Operation).
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. |
Possible Sources
Wiring, terminals or connectors Stoplamp switch PCM
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