A P0570 code on your 2022 Cadillac XT5 indicates a malfunction in the cruise control multi-function Input B circuit. This designates a specific circuit within the cruise control switch assembly.
Input B Circuit
Multi-function cruise switches have multiple input circuits (A, B, etc.) for different functions. Input B represents one specific switch function that the ECM monitors. The exact function mapped to Input B varies by manufacturer.
XT5 Cruise Control
The 2022 Cadillac XT5 features Super Cruise or adaptive cruise control depending on trim level. All systems use steering wheel-mounted controls with multiple circuits for various functions.
Input B Malfunction Causes
The specific switch function may have failed. Circuit wiring may be damaged or shorted. Clock spring problems affect this circuit. The switch may be stuck in one position. Connector issues prevent proper signal transmission.
Diagnostic Process
Use GM GDS2 to identify which function corresponds to Input B. Monitor that signal while operating the associated switch. Test for proper signal change when the button is pressed and released. Check circuit continuity and look for shorts or opens.