DTC codes / P05xx · Vehicle speed, idle control and auxiliary inputs / P0569
P0569 means the cruise control module has detected a fault in the coast signal circuit, which is the input that tells the system the driver wants to reduce speed without braking. The computer monitors the voltage or switch state on the coast switch circuit and sets this code when the signal is out of range, stuck, or inconsistent with other cruise control inputs.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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