P03AA
Cylinder 3 Pressure Sensor Circuit Range/Performance
P03AA is an OBD-II diagnostic trouble code meaning: Cylinder 3 Pressure Sensor Circuit Range/Performance. Common causes: faulty cylinder pressure sensor, open or shorted sensor wiring harness. Estimated repair cost: $56–167.
Symptoms
- Loss of engine power
- Increased fuel consumption
- Unstable idling
- Check Engine Light Illuminates
Causes
- Faulty cylinder pressure sensor
- Open or shorted sensor wiring harness
- Poor contact in the sensor connector
- Mechanical problems in the cylinder (low compression, misfire)
How to Fix
- Visually inspect the pressure sensor and its wiring harness for damage.
- Check the supply voltage and sensor signal using a multimeter
- Check sensor resistance (compare with manufacturer's specifications)
- If necessary, replace the pressure sensor
- Clear the ECU memory and check if the error returns
Related codes
Error P03AA by Vehicle Brand
FAQ
What does the P03AA code mean?
P03AA is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Pressure Sensor Circuit Range/Performance
What causes a P03AA error code?
The most common causes of P03AA include: Faulty cylinder pressure sensor; Open or shorted sensor wiring harness; Poor contact in the sensor connector; Mechanical problems in the cylinder (low compression, misfire).
How do I fix a P03AA diagnostic trouble code?
To fix P03AA: Visually inspect the pressure sensor and its wiring harness for damage.. Check the supply voltage and sensor signal using a multimeter. Check sensor resistance (compare with manufacturer's specifications). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P03AA?
Limited driving only, diagnose soon
How much does it cost to fix P03AA?
The estimated repair cost for P03AA is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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