P2304 2017 GMC Sierra Code - Ignition Coil 2 Control Circuit High Voltage
Quick Answer
The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2304 2017 GMC Sierra indicates Ignition Coil 2 Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Ignition Coil 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2304 2017 GMC Sierra Description
What are the Possible Causes of the DTC P2304 2017 GMC Sierra?
- Faulty Ignition Coil 2
- Ignition Coil 2 harness is open or shorted
- Ignition Coil 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2304 2017 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2304 2017 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2304 2017 GMC Sierra Code
1. What are the common symptoms of OBDII code P2304 in a 2017 GMC Sierra related to Ignition Coil 2 Control Circuit High Voltage?
- Common symptoms include engine misfires, rough idling, lack of power, and illuminated Check Engine light.
2. What are the potential causes of OBDII code P2304 in a 2017 GMC Sierra indicating Ignition Coil 2 Control Circuit High Voltage?
- Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).
3. How can I diagnose the root cause of OBDII code P2304 in my 2017 GMC Sierra associated with Ignition Coil 2 Control Circuit High Voltage?
- You can perform a visual inspection of the ignition coil and its wiring, test the coil's resistance, check for loose connections, and use a scan tool to monitor live data and pinpoint the issue.
4. Can I continue driving my 2017 GMC Sierra with OBDII code P2304 related to Ignition Coil 2 Control Circuit High Voltage?
- It is not recommended to continue driving with this code active, as it can lead to further damage to the ignition system and potentially cause more severe issues.
5. How do I repair OBDII code P2304 in my 2017 GMC Sierra indicating Ignition Coil 2 Control Circuit High Voltage?
- The repair typically involves replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, and clearing the code with a scan tool.
6. Are there any preventive maintenance tips to avoid OBDII code P2304 in my 2017 GMC Sierra related to Ignition Coil 2 Control Circuit High Voltage?
- Regularly inspecting the ignition system components, ensuring proper wire connections, and using high-quality ignition coils can help prevent this issue.
7. Can a DIY enthusiast fix OBDII code P2304 in a 2017 GMC Sierra associated with Ignition Coil 2 Control Circuit High Voltage?
- While some DIYers may have the skills to diagnose and replace the ignition coil, it is recommended to consult a professional mechanic for accurate diagnosis and repair.
8. What is the typical cost to repair OBDII code P2304 in a 2017 GMC Sierra indicating Ignition Coil 2 Control Circuit High Voltage?
- The cost of repair can vary depending on the labor rates in your area, but it generally ranges from $150 to $300 for parts and labor.
9. Will resetting the Check Engine light resolve OBDII code P2304 in my 2017 GMC Sierra related to Ignition Coil 2 Control Circuit High Voltage?
- Simply resetting the light will not fix the underlying issue causing the code. It is essential to diagnose and repair the problem to prevent the code from reappearing.
10. How long does it take to repair OBDII code P2304 in a 2017 GMC Sierra related to Ignition Coil 2 Control Circuit High Voltage?
- The repair time can vary depending on the extent of the issue and the availability of parts, but it typically takes around 1-2 hours for a professional mechanic to diagnose and replace the ignition coil.
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