P28BC
Cylinder 12 Ion Current Sense Circuit
P28BC is an OBD-II diagnostic trouble code meaning: Cylinder 12 Ion Current Sense Circuit. Common causes: open or short circuit in the circuit, faulty spark plug. Estimated repair cost: $17–89.
Symptoms
- Misfire in cylinder 12
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Open or short circuit in the circuit
- Faulty spark plug
- Problems with the ignition coil
- Wiring harness damage
- Engine control unit malfunction
How to Fix
- Check the integrity of the ion current circuit
- Inspect the spark plug and coil
- Check connections and connectors
- Test circuit resistance
- Replace damaged components if necessary
Related codes
Error P28BC by Vehicle Brand
FAQ
What does the P28BC code mean?
P28BC is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Ion Current Sense Circuit
What causes a P28BC error code?
The most common causes of P28BC include: Open or short circuit in the circuit; Faulty spark plug; Problems with the ignition coil; Wiring harness damage.
How do I fix a P28BC diagnostic trouble code?
To fix P28BC: Check the integrity of the ion current circuit. Inspect the spark plug and coil. Check connections and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28BC?
Limited driving only, diagnose soon
How much does it cost to fix P28BC?
The estimated repair cost for P28BC is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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