Result:

p1621

Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Instrument panel, ECT signal - short to ground
Cause:
    Wiring short to ground, instrument panel

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Control Module Long Term Memory Performance Conditions
Cause:
    Key on or engine running, then the PCM detected a fault in the non-volatile memory had occurred

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM) - internal memory performance
Cause:
    ECM

Jaguar
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM)
Cause:
    ECM

Mazda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM) - incorrect immobilizer code after cranking
Cause:
    Immobilizer word code not programmed

Saab
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    AC compressor clutch relay - high output
Cause:
    Wiring short to positive, AC compressor clutch relay

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Instrument panel, ECT signal - short to ground
Cause:
    Wiring short to ground, instrument panel

Look for code