What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P1456FUEL TANK SYSTEMManufacturer communications
3Original wording in English
HONDA
Reported code forms P1456
SUBJECT REGARDING DIAGNOSTIC TROUBLE CODE (DTC) P1456 (FUEL TANK SYSTEM) OR DTC P1457 EVAP CANISTER SYSTEM COMES BACK AFTER PROCEDURE IN SB-02-007 EVAP SYSTEM FUNCTION TESTING AND DIAGNOSTICS WITH THE PGM TESTER. *TT
HONDA
Reported code forms P1456
SUBJECT REGARDING REPEAT DIAGNOSTIC TROUBLE CODES P1456 OR P1457 EVAPORATIVE SYSTEM LEAKS FOR ALL MODELS. *TT
HONDA
Reported code forms P1456
INFORMATION ON THE TWO COMMON CAUSES OF MALFUNCTION INDICATOR LIGHT ON AND DIAGNOSTIC TROUBLE CODE P1456. *TT
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.