AutoCodesChevrolet – P2301 2015 Chevrolet Silverado

P2301 2015 Chevrolet Silverado Code - Ignition Coil 1 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 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
P2301 2015 Chevrolet Silverado indicates Ignition Coil 1 Control Circuit High 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 333
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 P2301 2015 Chevrolet Silverado 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 P2301 2015 Chevrolet Silverado - Ignition Coil 1 Control Circuit High Voltage - AutoCodes.com
P2301 2015 Chevrolet Silverado Code - Ignition Coil 1 Control Circuit High Voltage

What are the Possible Causes of the DTC P2301 2015 Chevrolet Silverado?

  • 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 P2301 2015 Chevrolet Silverado?

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 P2301 2015 Chevrolet Silverado 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 P2301 2015 Chevrolet Silverado code?

Need more information on how to fix the P2301 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P2301 2015 Chevrolet Silverado Code

1. What does the OBD-II code P2301 mean on a 2015 Chevrolet Silverado?

P2301 indicates an issue with the ignition coil 1 control circuit, specifically high voltage detected in the circuit.

2. What are the common symptoms of code P2301 on a 2015 Chevy Silverado?

Symptoms may include engine misfires, rough idle, reduced fuel efficiency, difficulty starting, and the check engine light turning on.

3. What causes the P2301 code on a 2015 Chevrolet Silverado?

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 a bad ignition coil trigger the P2301 code?

Yes, a bad ignition coil can cause high voltage in the control circuit, leading to the P2301 code.

5. How do you diagnose the P2301 code on a 2015 Chevy Silverado?

Start by inspecting the ignition coil, wiring, and connectors for damage or corrosion. Use a multimeter to test circuit voltage and resistance, and confirm proper operation of the PCM.

6. Can a loose or damaged connector cause the P2301 code?

Yes, a loose or damaged connector can disrupt the circuit and lead to high voltage triggering the P2301 code.

7. How do you fix the P2301 code on a 2015 Chevrolet Silverado?

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

8. Is it safe to drive a 2015 Chevrolet Silverado with code P2301?

Driving with this code may lead to engine misfires, reduced performance, and potential damage to other components. It’s best to address the issue promptly.

9. How much does it cost to repair the P2301 code on a 2015 Chevy Silverado?

Repair costs vary, but replacing an ignition coil typically ranges from $100 to $300, while wiring repairs or PCM replacement could cost more.

10. Can a faulty PCM cause the P2301 code on a 2015 Chevrolet Silverado?

Yes, a faulty powertrain control module can mismanage the ignition coil circuit, leading to the P2301 code.

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