P03AB
Cylinder 3 Pressure Sensor Circuit Low
P03AB is an OBD-II diagnostic trouble code meaning: Cylinder 3 Pressure Sensor Circuit Low. Common causes: cylinder 3 pressure sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine light comes on
Causes
- Cylinder 3 pressure sensor malfunction
- Open or short circuit in wiring harness
- Poor contact in sensor connectors
- ECU malfunction
How to Fix
- Check the integrity of the sensor wiring harness
- Check contacts in sensor and ECU connectors
- Check the resistance and voltage of the cylinder pressure sensor
- Replace the cylinder pressure sensor if necessary
Related codes
Error P03AB by Vehicle Brand
FAQ
What does the P03AB code mean?
P03AB is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Pressure Sensor Circuit Low
What causes a P03AB error code?
The most common causes of P03AB include: Cylinder 3 pressure sensor malfunction; Open or short circuit in wiring harness; Poor contact in sensor connectors; ECU malfunction.
How do I fix a P03AB diagnostic trouble code?
To fix P03AB: Check the integrity of the sensor wiring harness. Check contacts in sensor and ECU connectors. Check the resistance and voltage of the cylinder pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P03AB?
Limited driving only, diagnose soon
How much does it cost to fix P03AB?
The estimated repair cost for P03AB is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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