AutoCodesBuick – P2319 Buick

P2319 Buick Code - Ignition Coil 7 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 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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
P2319 Buick indicates Ignition Coil 7 Control Circuit High Voltage.
Common causes
Common causes include Faulty Ignition Coil 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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.
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Code Popularity 576
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 31, 2021
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Code P2319 Buick Description

The ignition system on this engine uses ignition coils with integrated power transistors. The Engine Control Module (ECM) controls the spark event for each cylinder through individual ignition coil control circuits. When the ECM commands the ignition control circuit On, electrical current flows through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM commands the ignition control circuit Off, interrupting current flow through the primary winding. The collapsing magnetic field created by the primary winding induces a high voltage in the secondary winding, which is connected to the spark plugs. The Diagnostic Trouble Code (DTC) will be set when the control circuit commanded by the ECM state does not match the actual state.
OBDII Code P2319 Buick - Ignition Coil 7 Control Circuit High Voltage - AutoCodes.com
P2319 Buick Code - Ignition Coil 7 Control Circuit High Voltage

What are the Possible Causes of the DTC P2319 Buick?

  • Faulty Ignition Coil 7
  • Ignition Coil 7 harness is open or shorted
  • Ignition Coil 7 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2319 Buick?

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 P2319 Buick 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.

Need more information about the P2319 Buick code?

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Need Help with the Code?

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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 P2319 Buick Code

1. What does the OBDII code P2319 mean on a Buick?

P2319 indicates an issue with the ignition coil 7 control circuit, specifically a high voltage condition that affects the vehicle's ignition system.

2. What are the symptoms of the P2319 code in a Buick?

Symptoms may include engine misfires, rough idling, reduced engine performance, poor fuel economy, and the Check Engine Light turning on.

3. What causes the P2319 code to appear on a Buick?

Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a defective powertrain control module (PCM), or excessive resistance in the circuit.

4. Can I drive my Buick with the P2319 code?

Driving with the P2319 code is not recommended, as it can cause further engine damage due to misfires and may lead to unsafe driving conditions.

5. How is the P2319 code diagnosed in a Buick?

Diagnosis involves using a scan tool to confirm the code, inspecting the ignition coil 7 wiring and connectors, testing the ignition coil for proper operation, and checking the PCM for faults.

6. How do you fix the P2319 code on a Buick?

Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, or reprogramming/repairing the PCM if necessary.

7. How much does it cost to fix the P2319 code on a Buick?

Repair costs vary but may range from $100 to $300 for ignition coil replacement, with additional costs if wiring or PCM repairs are needed.

8. Can a bad spark plug cause the P2319 code in a Buick?

While rare, a malfunctioning spark plug can contribute to ignition coil issues, so it’s worth inspecting and replacing spark plugs if necessary.

9. Does the P2319 code always mean the ignition coil is bad?

No, the code could also be triggered by wiring issues, poor electrical connections, or a faulty PCM.

10. How do I prevent the P2319 code from reoccurring in my Buick?

Regular maintenance, inspecting ignition components, and addressing engine issues promptly can help prevent the P2319 code from recurring.

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