P1456

Set by the manufacturer, so it means different things on different makes. 14 makes in the table below.

More codes than this one? Paste your whole scan

What P1456 means, by make 14 makes

Acura EVAP Emission Control System Leak Detected (Fuel Tank System)
Audi Exhaust gas temperature control bank 1 limit attained
BMW Heated Catalyst Heater Power Supply Open Circuit (Bank 1)
Chevrolet Catalyst Heater Diagnostic
Citroen Fuel Tank Temperature Sensor Circuit Malfunction
Ford Fuel Tank Temperature Sensor Circuit Malfunction
Honda Evaporative Emissions (EVAP) Control System Leakage (Fuel Tank System) EVAP
Mercedes-Benz Fuel Tank Temperature Sensor Circuit
Nissan EVAP Control System
Peugeot Fuel Tank Temperature Sensor Circuit Malfunction
Porsche A/C Compressor Control
Saab Tank purging, leak in system.
Volkswagen Exhaust gas temperature control bank 1 limit attained
Volvo Exhaust gas temperature control bank 1 limit attained

Each line is that manufacturer's own meaning for P1456. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P1456

Powertrain

engine, transmission and emissions

Manufacturer-specific

Defined by the vehicle manufacturer, so the meaning varies between makes.

Fault index

identifies the specific fault

Powertrain Manufacturer-specific

Nearby codes in the P1 range

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.