P2322 2017 GMC Sierra Code - Ignition Coil 8 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 8, Ignition Coil 8 harness is open or shorted, Ignition Coil 8 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
- P2322 2017 GMC Sierra indicates Ignition Coil 8 Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Ignition Coil 8, Ignition Coil 8 harness is open or shorted, Ignition Coil 8 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 P2322 2017 GMC Sierra Description
What are the Possible Causes of the DTC P2322 2017 GMC Sierra?
- Faulty Ignition Coil 8
- Ignition Coil 8 harness is open or shorted
- Ignition Coil 8 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2322 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 P2322 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 P2322 2017 GMC Sierra Code
1. What does the OBDII code P2322 mean on a 2017 GMC Sierra?
P2322 indicates a high voltage issue in the control circuit for ignition coil 8, signaling a potential electrical problem affecting that specific coil.
2. What are the common symptoms of P2322 in a 2017 GMC Sierra?
Symptoms may include engine misfires, rough idling, reduced fuel efficiency, loss of power, and the check engine light being illuminated.
3. What causes the P2322 code to appear?
Common causes include a faulty ignition coil, damaged wiring or connectors in the coil 8 circuit, a failed ignition control module, or a malfunctioning Powertrain Control Module (PCM).
4. Can I drive my 2017 GMC Sierra with the P2322 code?
Driving with this code is not recommended, as it may cause further engine damage, poor performance, and increased emissions.
5. How is P2322 diagnosed in a 2017 GMC Sierra?
A mechanic will typically use a scan tool to confirm the code, inspect the ignition coil 8 wiring and connectors, test the coil for proper resistance, and check for issues in the PCM or ignition control module.
6. How do you fix the P2322 code on a 2017 GMC Sierra?
Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
7. How much does it cost to fix the P2322 code on a 2017 GMC Sierra?
The cost can vary, but replacing an ignition coil typically ranges from $100 to $300, while wiring repairs or PCM replacements may cost more depending on the extent of the issue.
8. Can a bad spark plug cause the P2322 code?
While rare, a bad spark plug could potentially cause additional stress on the ignition coil, leading to circuit issues. It’s important to inspect the spark plug in cylinder 8 during diagnosis.
9. Will clearing the P2322 code fix the problem?
Clearing the code will turn off the check engine light temporarily, but it won’t address the underlying issue. The code will likely return if the root cause is not fixed.
10. How can I prevent the P2322 code from occurring again?
Regular maintenance, including inspecting and replacing ignition coils, spark plugs, and wiring as needed, can help prevent this issue. Avoid driving through deep water, which can damage electrical components.
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