Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle speed adaptation - limit reached
Cause:
    Intake/exhaust leak, AIR system, fuel pressure/pump, injector(s), EVAP canister purge valve

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Cruise Control Module Direction Low Input Conditions
Cause:
    Key on, then the PCM detected less than 7v on the Cruise Direction circuit with Quad Driver turned on.

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle speed adaptation - limit reached
Cause:
    Intake/exhaust leak, AIR system, fuel pressure/pump, injector(s), EVAP canister purge valve