Code Definition

P0575 — Cruise Control Switch Signal Message Counter Incorrect

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0575

P0575 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0575 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

On vehicles where cruise control switch status is transmitted across the vehicle network rather than hard wired to the Engine Control Module, the sending module packages the switch state into a data frame that includes a rolling message counter and usually a checksum. The receiving module verifies that the counter increments in the expected sequence on every frame, which allows it to detect frames that have been lost, duplicated, delayed, or corrupted in transit and to reject stale switch data that could otherwise cause an unintended cruise control action. DTC P0575 sets when the ECM receives ...

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