Car Codes diagnostic trouble code
Fuel Tank Temperature Sensor Circuit MalfunctionDiagnostic contextPotentially applicable to OBD-II-compliant vehicles; confirm against vehicle VIN, model year and module.Vehicle applicabilityApplicability varies by vehicle, powertrain, model year and control module.
Code interpretation
What P1456 means
This code indicates Fuel Tank Temperature Sensor Circuit Malfunction Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.
Driver experience
Symptoms you may notice
A stored diagnostic trouble code or related system symptom.
Test, do not guess
Possible causes
Confirm the reporting module, circuit condition, power supply, wiring, component performance and software status.
Evidence-led checks
Recommended diagnostic route
Save the complete scan, confirm the full code and reporting module, then test using model-specific multi-brand technical information.
- Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
- Prove the basicsTest battery condition, system voltage, power and grounds.
- Identify the reporterConfirm the module that logged the code and check circuit integrity.
- Compare live dataReview commanded and actual values under the conditions that set the code.
- Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
- Verify the repairClear the code only after recording evidence, then confirm it does not return.
Vehicle fitment
Vehicle applicability
Honda Civic, Honda CR-V, Honda Prelude
Before clearing
Can the code be cleared?
Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.
Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.
Verified public evidence
Manufacturer and model coverage
25 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.
CIVIC · 1998 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCIVIC · 1999 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCIVIC · 2000 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCIVIC · 2001 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCIVIC · 2002 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCIVIC · 1996 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCIVIC · 1997 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCIVIC · 1998 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCIVIC · 1999 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCIVIC · 2000 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCR-V · 1998 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCR-V · 1999 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCR-V · 2001 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCR-V · 2002 · Powertrain
INFORMATION ON TESTING FOR INTERAL LEAKS WITH DIAGNOSTIC TROUBLE CODE P1456 OR P1457. *TT
SourceCR-V · 2002 · Powertrain
FUEL FILL CAP BINDS AND POSSIBLE MALFUNCTION INDICATOR LAMP COMES ON WITH DIAGNOSTIC TROUBLE CODE P1456. THIS BULLETIN SUPERSEDES 04-002, DATED 02/30/04. *TT
SourceCR-V · 2003 · Powertrain
FUEL FILL CAP BINDS AND POSSIBLE MALFUNCTION INDICATOR LAMP COMES ON WITH DIAGNOSTIC TROUBLE CODE P1456. THIS BULLETIN SUPERSEDES 04-002, DATED 02/30/04. *TT
SourceCR-V · 2004 · Powertrain
FUEL FILL CAP BINDS AND POSSIBLE MALFUNCTION INDICATOR LAMP COMES ON WITH DIAGNOSTIC TROUBLE CODE P1456. THIS BULLETIN SUPERSEDES 04-002, DATED 02/30/04. *TT
SourceCR-V · 1998 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCR-V · 1999 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
SourceCR-V · 2000 · Powertrain
HONDA: TROUBLESHOOTING OF DIAGNOSTIC TROUBLE CODES (DTC) P1456 AND P1457. DEALERS ARE TO RUN EVAP FUNCTION TEST TO FIND IF THERE IS A LEAK SO THE VEHICLE CAN BE REPAIRED.…
Source