P1820 Diagnose-Fehlercode (5 Interpretationen)

The control module detected improper operation of the Transmission Transfer Case Clockwise Shift Relay Coil circuit. This is the manufacturer-specific definition used by Ford.

The control module detected a fault associated with the Pump for 4WD Motor High Overcurrent Detected 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 that the Shift Fork Position Sensor 1 System voltage stayed below the expected range. This is the manufacturer-specific definition used by Mitsubishi.

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

The control module detected a short circuit to battery voltage in the Pressure Control Valve 2 (N216) circuit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18228. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).