Engine-CodesGMC – P2316 GMC

P2316 GMC Code - Ignition Coil 6 Control Circuit High Voltage

Quick Answer

When the diagnostic trouble code P2316 is triggered in a GMC vehicle, it indicates that there is a high voltage condition detected in the control circuit of ignition coil 6. Common causes include Faulty ignition coil, Damaged or corroded wiring in the control circuit, Issues with the engine control module (ECM). 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
P2316 GMC indicates Ignition Coil 6 Control Circuit High Voltage.
Common causes
Common causes include Faulty ignition coil, Damaged or corroded wiring in the control circuit, Issues with the engine control module (ECM).
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P2316 GMC Description

When the diagnostic trouble code P2316 is triggered in a GMC vehicle, it indicates that there is a high voltage condition detected in the control circuit of ignition coil 6. This typically means that there is an issue with the ignition coil or its related components. The ignition coil plays a crucial role in the vehicle's ignition system by converting the low voltage from the battery into the high voltage needed to ignite the fuel and start the engine. When the control circuit voltage is too high, it can disrupt the proper functioning of the ignition coil, leading to potential misfires, rough idling, and decreased fuel efficiency.

OBDII Code P2316 GMC - Ignition Coil 6 Control Circuit High Voltage
P2316 GMC Code - Ignition Coil 6 Control Circuit High Voltage

Common Causes of P2316 GMC

  1. Faulty ignition coil
  2. Damaged or corroded wiring in the control circuit
  3. Issues with the engine control module (ECM)
  4. Poor electrical connections
  5. Water or moisture intrusion in the ignition system

Symptoms of P2316 GMC

  1. Rough idling or engine misfires
  2. Decreased fuel efficiency
  3. Engine hesitation or stalling
  4. Illuminated check engine light
  5. Reduced engine performance

How to Fix P2316 GMC

  1. Diagnose the specific cause of the high voltage condition using a diagnostic scanner and multimeter.
  2. Inspect the ignition coil, control circuit wiring, and connections for any visible damage or corrosion.
  3. Test the ignition coil for proper resistance and check for any signs of internal damage.
  4. Replace the faulty ignition coil or repair any damaged wiring or connections.
  5. Clear the trouble code from the vehicle's computer and test drive to ensure the issue has been resolved.

Cost to Fix P2316 GMC

The cost of repairing the ignition coil 6 control circuit high voltage issue in a GMC vehicle can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay anywhere from $150 to $400 for parts and labor. Keep in mind that additional diagnostic time may be required to pinpoint the exact issue, so it's best to consult with a professional mechanic for a more accurate cost estimate. Labor rates typically range from $80 to $150 per hour, but rates can differ based on location and shop type.

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Information for Specific GMC Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2316 GMC Code

1. What are common symptoms of OBDII code P2316 GMC (Ignition Coil 6 Control Circuit High Voltage)?

- Common symptoms include engine misfires, rough idling, loss of power, and illuminated check engine light.

2. What can cause OBDII code P2316 GMC to trigger?

- The code may trigger due to a faulty ignition coil, wiring issues, a defective PCM, or a problem with the ignition coil control circuit.

3. How can I diagnose the cause of OBDII code P2316 GMC?

- You can diagnose the issue by performing a visual inspection of the ignition coil and its wiring, testing the ignition coil with a multimeter, and checking for any loose connections.

4. Can a bad spark plug cause OBDII code P2316 GMC to set?

- Yes, a bad spark plug can contribute to the triggering of this code as it can affect the performance of the ignition coil and lead to high voltage in the control circuit.

5. What are the repair options for OBDII code P2316 GMC?

- Repair options include replacing the faulty ignition coil, repairing or replacing damaged wiring, checking and repairing any connection issues, and resetting the fault code.

6. Is it safe to continue driving with OBDII code P2316 GMC present?

- It is not recommended to drive with this code present as it can lead to further damage to the engine and other components, potentially causing more severe issues.

7. Can I clear OBDII code P2316 GMC with a simple reset?

- While clearing the code may temporarily turn off the check engine light, it is important to address the underlying issue causing the code to prevent future problems.

8. How can I prevent OBDII code P2316 GMC from reoccurring?

- Regularly maintaining your vehicle, checking and replacing spark plugs and ignition coils as needed, and addressing any wiring issues promptly can help prevent the code from reoccurring.

9. Will OBDII code P2316 GMC affect fuel efficiency?

- Yes, this code can affect fuel efficiency due to engine misfires and inefficient combustion caused by ignition system malfunctions.

10. Can a DIY enthusiast repair OBDII code P2316 GMC themselves?

- Depending on their skill level, a DIY enthusiast may be able to diagnose and repair this code by following proper procedures, using the right tools, and ensuring safety precautions are taken.

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