P1619 Diagnostic Trouble Code (7 interpretations)

The control module detected improper operation of the Engine Oil Life Monitor Reset circuit. This is the manufacturer-specific definition used by Chevrolet.

The control module detected a fault associated with the Main Relay circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.

The control module detected improper operation of the Engine control module (ECM) internal reference voltage. This is the manufacturer-specific definition used by Land Rover.

The control module detected that the Map Cooling Thermostat Control signal stayed below the expected range. This is the manufacturer-specific definition used by MINI.

The control module detected an interruption (open circuit) in the Glow plug relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.

The control module detected a short circuit to ground in the Glow Plug Relay (J52): Open or circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18027. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

The control module detected a fault associated with the CAN data bus, digital multifunction display - MIL request circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volvo.