AutoCodesGMC – P2319 2018 GMC Sierra

P2319 2018 GMC Sierra 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 2018 GMC Sierra 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 173
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
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Code P2319 2018 GMC Sierra 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 2018 GMC Sierra - Ignition Coil 7 Control Circuit High Voltage - AutoCodes.com
P2319 2018 GMC Sierra Code - Ignition Coil 7 Control Circuit High Voltage

What are the Possible Causes of the DTC P2319 2018 GMC Sierra?

  • 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 2018 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 P2319 2018 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.

Need more information about the P2319 2018 GMC Sierra 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 2018 GMC Sierra Code

What does the OBDII code P2319 mean on a 2018 GMC Sierra?

1. P2319 indicates a high voltage issue in the ignition coil 7 control circuit, which may affect the vehicle's ignition system performance. 2.

What are the common symptoms of code P2319 on a 2018 GMC Sierra?

Symptoms may include a rough idle, engine misfire, reduced power, poor fuel efficiency, or the check engine light illuminating. 3.

What causes the P2319 code to appear on a 2018 GMC Sierra?

Common causes include a faulty ignition coil, damaged wiring or connectors in the coil 7 circuit, a bad spark plug, or issues with the Powertrain Control Module (PCM). 4.

Can I drive my 2018 GMC Sierra with a P2319 code?

It’s not recommended to drive with this code, as it can lead to engine misfires and potential damage to the catalytic converter if left unresolved. 5.

How do I diagnose the P2319 code on a 2018 GMC Sierra?

Start by inspecting ignition coil 7 and its wiring for damage, corrosion, or loose connections. Use a multimeter to test for proper voltage and resistance in the circuit. 6.

What repairs are typically needed to fix the P2319 code on a 2018 GMC Sierra?

Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, replacing the spark plug, or reprogramming/updating the PCM if necessary. 7.

How much does it cost to fix the P2319 code on a 2018 GMC Sierra?

Repair costs can vary, but ignition coil replacement typically ranges from $100 to $300, while wiring repairs may add extra labor costs. 8.

Can a bad spark plug cause the P2319 code on a 2018 GMC Sierra?

Yes, a worn or damaged spark plug can cause abnormal voltage levels in the ignition coil circuit, triggering the P2319 code. 9.

How can I prevent the P2319 code from occurring on my 2018 GMC Sierra?

Regular maintenance, such as inspecting and replacing spark plugs and ignition coils as recommended, can help prevent this issue. 10.

Do I need special tools to fix the P2319 code on a 2018 GMC Sierra?

Yes, you may need tools like a multimeter for voltage testing, a scan tool for clearing the code, and basic hand tools for replacing components.

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