P1623 Diagnostic Trouble Code (9 interpretations)

The control module detected a fault associated with the Pedal Position Sensor Potentiometer Supply circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

The control module detected improper operation of the Malfunction indicator lamp (MIL) circuit. This is the manufacturer-specific definition used by Kia.

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

The stored code identifies a fault of the ECU internal fault. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

The control module detected the fault condition "Safety" for the Engine torque delivered. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected a fault associated with the Ignition key not programmed circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.

The control module did not receive the expected CAN data bus signal. This is the manufacturer-specific definition used by Audi.

The control module did not receive the expected CAN data bus signal. This is the manufacturer-specific definition used by Volkswagen.

The control module detected improper operation of the Engine control module (ECM), HO2S 1 circuit. This is the manufacturer-specific definition used by Volvo.