AutoCodes – GMC – P2300 GMC

P2300 GMC 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 GMC 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 1,338

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 31, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2300 GMC 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 GMC - Ignition Coil 1 Control Circuit Low Voltage - AutoCodes.com — P2300 GMC Code - Ignition Coil 1 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2300 GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

Get the P2300 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P2300 2014 GMC Sierra — Ignition Coil 1 Control Circuit Low Voltage
P2300 2015 GMC Sierra — Ignition Coil 1 Control Circuit Low Voltage
P2300 2016 GMC Sierra — Ignition Coil 1 Control Circuit Low Voltage
P2300 2017 GMC Sierra — Ignition Coil 1 Control Circuit Low Voltage
P2300 2018 GMC Sierra — Ignition Coil 1 Control Circuit Low Voltage

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 GMC Code

1. What are the common symptoms of OBDII code P2300 GMC (Ignition Coil 1 Control Circuit Low Voltage)?

- Common symptoms may include rough idle, misfires, loss of power or acceleration, and illuminated Check Engine Light.

2. What can cause the OBDII code P2300 GMC to be triggered?

- The code P2300 is typically triggered by issues such as a faulty ignition coil, damaged wiring or connectors, or a problem with the engine control module (ECM).

3. How serious is the OBDII code P2300 GMC (Ignition Coil 1 Control Circuit Low Voltage)?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter or other engine components.

4. How can I diagnose the OBDII code P2300 GMC at home?

- Diagnosing this code may involve visually inspecting the ignition coil, checking the wiring and connectors for damage, and using a multimeter to test the voltage at the coil.

5. What are some repair tips for fixing the OBDII code P2300 GMC?

- Repair tips may include replacing the faulty ignition coil, repairing any damaged wiring or connectors, and resetting the ECM to see if the code returns.

6. Can I continue driving my vehicle with the OBDII code P2300 GMC present?

- While the vehicle may still be operable, it is recommended to avoid driving for extended periods with this code present to prevent potential damage to the engine.

7. How much does it typically cost to repair the OBDII code P2300 GMC?

- The cost of repairing this code can vary depending on the underlying issue, but it may range from $100 to $300 for parts and labor.

8. Will resetting the Check Engine Light resolve the OBDII code P2300 GMC?

- Resetting the Check Engine Light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.

9. Can a DIY enthusiast fix the OBDII code P2300 GMC on their own?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code, especially if the issue is with the ignition coil or wiring.

10. How long does it typically take to repair the OBDII code P2300 GMC?

- The repair time can vary based on the specific issue causing the code, but it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.