P1456 Diagnose-Fehlercode (7 Interpretationen)

The control module detected an interruption (open circuit) in the Heated Catalyst Heater Power Supply circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by BMW.

The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) canister purge system (fuel tank system). This is the manufacturer-specific definition used by Honda.

The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) canister purge system - very small. This is the manufacturer-specific definition used by Nissan.

The control module detected a fault associated with the A/C Compressor Control circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Porsche.

The control module detected that the EGR valve initialisation is jammed or locked. 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 that the monitored Exhaust gas recirculation temperature (EGRT) control, Bank 1 - control value reached its permissible limit. This is the manufacturer-specific definition used by Audi.

The control module detected that the monitored Exhaust gas recirculation temperature (EGRT) control, control value reached its permissible limit. This is the manufacturer-specific definition used by Volkswagen.