Infiniti DTC P1443 – Canister Control Vacuum Check Switch
DTC P1443 meaning on Infiniti
The DTC P1443 code on an Infiniti indicates an issue with the Canister Control Vacuum Check Switch circuit. This code is triggered when the ECM (Engine Control Module) detects a malfunction in the system responsible for monitoring the vacuum in the EVAP (Evaporative Emission Control) system.
Infiniti DTC P1443 symptoms
Common symptoms associated with DTC P1443 on an Infiniti may include:
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Strong fuel odor
Infiniti DTC P1443 causes
The DTC P1443 code on an Infiniti can be caused by various factors, including:
- Faulty Canister Control Vacuum Check Switch
- Leaking or damaged EVAP system hoses
- Defective EVAP canister
Infiniti DTC P1443 seriousness
While DTC P1443 may not cause immediate drivability issues, it is important to address this code promptly to prevent potential damage to the vehicle’s emission control system and ensure optimal performance.
How to diagnose DTC P1443 on Infiniti
Diagnosing DTC P1443 on an Infiniti typically involves the following steps:
- Use an OBD-II scanner to retrieve the trouble codes
- Inspect the EVAP system components for any visible damage or leaks
- Test the Canister Control Vacuum Check Switch for proper operation
How to fix DTC P1443 on Infiniti
To address DTC P1443 on an Infiniti, you may need to perform the following actions:
- Replace the faulty Canister Control Vacuum Check Switch
- Repair or replace any damaged EVAP system hoses
- Inspect and replace the EVAP canister if necessary
How to erase DTC P1443 on Infiniti
To clear the DTC P1443 code on an Infiniti, you can use an OBD-II scanner to reset the ECM after addressing the underlying issue causing the code. Once the repair is completed, the code can be cleared, and the Check Engine Light should turn off.
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