Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Instrument panel, ECT signal - open circuit/short to positive
Cause:
    Wiring open circuit/short to positive, instrument panel

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Low Engine Coolant Circuit Conditions
Cause:
    Engine running, then the PCM detected that the Engine Coolant Switch signal was low (indicating an open circuit) for 20 seconds

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Instrument panel, ECT signal - open circuit/ short to positive
Cause:
    Wiring open circuit/short to positive, instrument panel