Subaru OBD-II 1996 & Newer models DTC P1443 – EVAP Control System Vent Control Function Problem
DTC P1443 meaning on Subaru OBD-II 1996 & Newer models
DTC P1443 on Subaru OBD-II 1996 & Newer models indicates a problem with the EVAP Control System Vent Control Function. This code is triggered when the ECM (Engine Control Module) detects a malfunction in the system responsible for controlling the vent valve that manages the flow of fuel vapors from the fuel tank to the charcoal canister.
Subaru OBD-II 1996 & Newer models DTC P1443 symptoms
- Check Engine Light (MIL) illuminated
- Strong fuel odor near the vehicle
- Decreased fuel efficiency
- Increased emissions
Subaru OBD-II 1996 & Newer models DTC P1443 causes
- Faulty EVAP vent valve
- Broken or disconnected vacuum lines
- Charcoal canister saturation
- Defective ECM
Subaru OBD-II 1996 & Newer models DTC P1443 seriousness
The seriousness of DTC P1443 on Subaru OBD-II 1996 & Newer models lies in the potential for increased emissions, reduced fuel efficiency, and the risk of fuel vapors escaping into the atmosphere, contributing to environmental pollution.
How to diagnose DTC P1443 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to retrieve the trouble codes
- Inspect the EVAP vent valve for proper operation
- Check the vacuum lines for leaks or damage
- Test the charcoal canister for saturation
- Verify the ECM functionality
How to fix DTC P1443 on Subaru OBD-II 1996 & Newer models
- Replace the faulty EVAP vent valve
- Repair or replace damaged vacuum lines
- Clean or replace the charcoal canister if saturated
- If necessary, reprogram or replace the ECM
How to erase DTC P1443 on Subaru OBD-II 1996 & Newer models
To clear the DTC P1443 code on Subaru OBD-II 1996 & Newer models, you can use an OBD-II scanner to reset the ECM. Ensure that the underlying issue causing the code has been addressed and fixed before clearing the code.
Recommended tools for Subaru OBD-II 1996 & Newer models diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.