AutoCodesGMC – P2300 2017 GMC Sierra

P2300 2017 GMC Sierra Code - Ignition Coil 1 Control Circuit Low Voltage

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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
P2300 2017 GMC Sierra indicates Ignition Coil 1 Control Circuit Low Voltage.
Common causes
Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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 172
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 P2300 2017 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 P2300 2017 GMC Sierra - Ignition Coil 1 Control Circuit Low Voltage - AutoCodes.com
P2300 2017 GMC Sierra Code - Ignition Coil 1 Control Circuit Low Voltage

What are the Possible Causes of the DTC P2300 2017 GMC Sierra?

  • Faulty Ignition Coil 1
  • Ignition Coil 1 harness is open or shorted
  • Ignition Coil 1 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2300 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 P2300 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.

Need more information about the P2300 2017 GMC Sierra code?

Need more information on how to fix the P2300 2017 GMC Sierra code? Get Access to Factory Service Manuals

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 P2300 2017 GMC Sierra Code

What does the OBDII code P2300 mean for a 2017 GMC Sierra?

P2300 indicates that the ignition coil 1 control circuit is experiencing low voltage, which can affect engine performance.

What are the common symptoms of code P2300 in a 2017 GMC Sierra?

Symptoms may include engine misfires, rough idle, reduced power, poor fuel economy, and the check engine light turning on.

What causes the P2300 code to appear on a 2017 GMC Sierra?

Common causes include a faulty ignition coil, damaged wiring or connectors, a defective ignition control module, or issues with the powertrain control module (PCM).

Can driving with code P2300 damage my 2017 GMC Sierra?

Yes, prolonged driving with this issue can lead to further engine misfires, increased wear on components, and potential catalytic converter damage.

How can I diagnose code P2300 in my GMC Sierra?

Start by inspecting the ignition coil, wiring, and connectors for physical damage, corrosion, or loose connections, and use a multimeter to check circuit voltage.

Is it expensive to fix the P2300 code on a 2017 GMC Sierra?

The cost depends on the exact cause, but common repairs like replacing an ignition coil or repairing wiring are generally affordable compared to PCM replacement.

How do I reset the P2300 code after repairs?

You can clear the code using an OBDII scanner, but ensure the underlying issue is fixed to prevent the code from returning.

Can a bad battery cause the P2300 code on a 2017 GMC Sierra?

Yes, a weak or failing battery may result in insufficient voltage to the ignition coil circuit, potentially triggering this code.

Should I replace all ignition coils if one is faulty on my GMC Sierra?

It’s not always necessary, but replacing all coils can prevent future failures if they are aging or showing signs of wear.

Can a faulty PCM cause the P2300 code on a 2017 GMC Sierra?

Yes, a malfunctioning powertrain control module can fail to provide proper voltage to the ignition coil circuit, leading to this code.

Discuss the causes and fixes for P2300 2017 GMC Sierra OBDII Code

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