C0561
Vacuum Sensor A/B Correlation
C0561 is an OBD-II diagnostic trouble code meaning: Vacuum Sensor A/B Correlation. Common causes: malfunction of one of the vacuum sensors, vacuum system leak. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Deterioration in braking performance
- Increased fuel consumption
- Check Engine light comes on
Causes
- Malfunction of one of the vacuum sensors
- Vacuum system leak
- Problems with the sensor wiring harness
- ECU malfunction
How to Fix
- Check the integrity of the vacuum hoses
- Test vacuum sensors to specifications
- Check wiring harness connections
- If necessary, replace faulty components
- Reset the error and check the system
Related codes
Error C0561 by Vehicle Brand
FAQ
What does the C0561 code mean?
C0561 is an OBD-II diagnostic trouble code that indicates: Vacuum Sensor A/B Correlation
What causes a C0561 error code?
The most common causes of C0561 include: Malfunction of one of the vacuum sensors; Vacuum system leak; Problems with the sensor wiring harness; ECU malfunction.
How do I fix a C0561 diagnostic trouble code?
To fix C0561: Check the integrity of the vacuum hoses. Test vacuum sensors to specifications. Check wiring harness connections. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0561?
Limited driving only, diagnose soon
How much does it cost to fix C0561?
The estimated repair cost for C0561 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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