P2304
Ignition Coil B Primary Control Circuit High
P2304 is an OBD-II diagnostic trouble code meaning: Ignition Coil B Primary Control Circuit High. Common causes: open or short circuit in the ignition coil circuit, poor contact in the coil connector. Estimated repair cost: $17–56.
Symptoms
- Misfire in cylinder B
- Unstable engine operation
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
Causes
- Open or short circuit in the ignition coil circuit
- Poor contact in the coil connector
- Faulty ignition coil
- Wiring Harness Problems
- Malfunction of the engine control unit (rare)
How to Fix
- Check the condition of the ignition coil of cylinder B
- Inspect connectors and wiring for damage
- Check resistance and continuity
- If necessary, replace the ignition coil
- Check and repair damaged wiring
Related codes
Error P2304 by Vehicle Brand
FAQ
What does the P2304 code mean?
P2304 is an OBD-II diagnostic trouble code that indicates: Ignition Coil B Primary Control Circuit High
What causes a P2304 error code?
The most common causes of P2304 include: Open or short circuit in the ignition coil circuit; Poor contact in the coil connector; Faulty ignition coil; Wiring Harness Problems.
How do I fix a P2304 diagnostic trouble code?
To fix P2304: Check the condition of the ignition coil of cylinder B. Inspect connectors and wiring for damage. Check resistance and continuity. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2304?
Limited driving only, diagnose soon
How much does it cost to fix P2304?
The estimated repair cost for P2304 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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