P03C5
Cylinder 5 Pressure Variation High
P03C5 is an OBD-II diagnostic trouble code meaning: Cylinder 5 Pressure Variation High. Common causes: fuel injector malfunction, problems with the ignition system. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Engine troubles
Causes
- Fuel injector malfunction
- Problems with the ignition system
- Low cylinder compression
- Pressure sensor malfunction
- Dirty or worn spark plug
How to Fix
- Check compression in cylinder 5
- Inspect the spark plug and replace if necessary
- Check the operation of the fuel injector
- Diagnose the ignition system
- Check cylinder pressure sensor
Related codes
Error P03C5 by Vehicle Brand
FAQ
What does the P03C5 code mean?
P03C5 is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Pressure Variation High
What causes a P03C5 error code?
The most common causes of P03C5 include: Fuel injector malfunction; Problems with the ignition system; Low cylinder compression; Pressure sensor malfunction.
How do I fix a P03C5 diagnostic trouble code?
To fix P03C5: Check compression in cylinder 5. Inspect the spark plug and replace if necessary. Check the operation of the fuel injector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P03C5?
Limited driving only, diagnose soon
How much does it cost to fix P03C5?
The estimated repair cost for P03C5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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