P1440 Fault Code – Purge Valve Stuck Open

Car Codes diagnostic trouble code

P1440Diagnostic priority

Purge Valve Stuck OpenDiagnostic 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 P1440 means

This code indicates Purge Valve Stuck Open 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, Toyota Land Cruiser

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.

A DTC is evidence, not a parts order.

Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.

Verified public evidence

Manufacturer and model coverage

11 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.

P1440Honda Civic
CIVIC · 2003 · Powertrain

MALFUNCTION INDICATOR LAMP (MIL) COMES ON WITH DIAGNOSTIC TROUBLE CODE P1440, DIAGNOSTIC TROUBLE CODE P1679, OR OTHER PROBLEMS WITH THE GENERIC SCAN TOOL. *TT

Source

P1440Honda Civic
CIVIC HYBRID · 2012 · Powertrain

…ter (MPI), also known as the Intelligent Inverter Unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the…

Source

P1440Honda Civic
CIVIC HYBRID · 2013 · Powertrain

…ter (MPI), also known as the Intelligent Inverter Unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the…

Source

P1440Honda Civic
CIVIC HYBRID · 2014 · Powertrain

…ter (MPI), also known as the Intelligent Inverter Unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the…

Source

P1440Honda Civic
CIVIC HYBRID · 2015 · Powertrain

…ter (MPI), also known as the Intelligent Inverter Unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the…

Source

P1440Honda Civic
CIVIC · 2003 · Powertrain

IMA SYSTEM INDICATOR IS ON WITH DIAGNOSTIC TROUBLE CODE P1440 SET. *TT

Source

P1440Honda Civic
CIVIC · 2003 · Powertrain

MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P1440 OR PROBLEMS USING THE GENERIC SCAN TOOL. *TT

Source

P1440Toyota Land Cruiser
LAND CRUISER · 2006 · Powertrain

…or the following Diagnostic Trouble Codes (DTCs): ? P0412 ? Secondary Air Injection System Switching Valve ?A? Circuit ? P0418 ? Secondary Air Injection System Relay ?A? Circuit ? P1440/P1443…

Source

P1440Toyota Land Cruiser
LAND CRUISER · 2007 · Powertrain

…or the following Diagnostic Trouble Codes (DTCs): ? P0412 ? Secondary Air Injection System Switching Valve ?A? Circuit ? P0418 ? Secondary Air Injection System Relay ?A? Circuit ? P1440/P1443…

Source

P1440Toyota Land Cruiser
LAND CRUISER · 2006 · Powertrain

…or the following Diagnostic Trouble Codes (DTCs): P0412 - Secondary Air Injection System Switching Valve "A" Circuit P0418 - Secondary Air Injection System Relay "A" Circuit P1440/P1443 - Secondary Air…

Source

P1440Toyota Land Cruiser
LAND CRUISER · 2007 · Powertrain

Source