Result:

p0565

Generic
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    Cruise Control "On" Signal

GM
Type:
    Powertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description:
    Cruise Control Switch Circuit Conditions
Cause:
    Engine running, and with the Cruise Switch on, the PCM detected a Cruise switch input that was under 0.5v or over 1.0v, or with the Resume/Accel Switch on, it detected an input under 1.2v or over 1.7v, or with Set Coast Switch on, an input under 3.0v or over 3.5v

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