AutoCodes – Chevrolet – P2312 Chevrolet

P2312 Chevrolet Code - Ignition Coil 5 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 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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: P2312 Chevrolet indicates Ignition Coil 5 Control Circuit Low Voltage.
Common causes: Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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 1,554

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 P2312 Chevrolet 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 P2312 Chevrolet - Ignition Coil 5 Control Circuit Low Voltage - AutoCodes.com — P2312 Chevrolet Code - Ignition Coil 5 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2312 Chevrolet?

Faulty Ignition Coil 5
Ignition Coil 5 harness is open or shorted
Ignition Coil 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2312 Chevrolet?

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 P2312 Chevrolet 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 P2312 Chevrolet code?

Need more information on how to fix the P2312 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2312 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P2312 2014 Chevrolet Silverado — Ignition Coil 5 Control Circuit Low Voltage
P2312 2015 Chevrolet Silverado — Ignition Coil 5 Control Circuit Low Voltage
P2312 2016 Chevrolet Silverado — Ignition Coil 5 Control Circuit Low Voltage
P2312 2017 Chevrolet Silverado — Ignition Coil 5 Control Circuit Low Voltage
P2312 2018 Chevrolet Silverado — Ignition Coil 5 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 P2312 Chevrolet Code

1. What are common symptoms of OBDII code P2312 (Chevrolet) related to Ignition Coil 5 Control Circuit Low Voltage?

Common symptoms include engine misfires, rough idle, loss of power, and illuminated Check Engine Light.

2. What can cause the Ignition Coil 5 Control Circuit Low Voltage code (P2312) in a Chevrolet vehicle?

Possible causes include a faulty ignition coil, damaged wiring or connectors, a defective engine control module (ECM), or a weak battery.

3. How can I diagnose the Ignition Coil 5 Control Circuit Low Voltage issue (P2312) in my Chevrolet?

You can diagnose this issue by checking the ignition coil for proper resistance, inspecting the wiring and connectors for damage, and using a scan tool to monitor voltage readings.

4. Is it safe to continue driving with OBDII code P2312 (Chevrolet) indicating Ignition Coil 5 Control Circuit Low Voltage?

It is not recommended to drive with this code present, as it can lead to further damage to the ignition system and potentially cause engine performance issues.

5. Can I repair OBDII code P2312 (Chevrolet) myself?

Depending on your skill level and access to tools, you may be able to repair this issue yourself by replacing the faulty ignition coil, repairing damaged wiring, or resetting the ECM.

6. What are some tips for preventing the Ignition Coil 5 Control Circuit Low Voltage code (P2312) in a Chevrolet?

Regularly maintaining your vehicle, using quality ignition components, and addressing any engine performance issues promptly can help prevent this code from appearing.

7. How much does it typically cost to repair OBDII code P2312 (Chevrolet) related to Ignition Coil 5 Control Circuit Low Voltage?

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

8. Can a weak battery cause the Ignition Coil 5 Control Circuit Low Voltage code (P2312) in a Chevrolet?

Yes, a weak or failing battery can impact the voltage supplied to the ignition coil, leading to the P2312 trouble code.

9. Will resetting the Check Engine Light resolve OBDII code P2312 (Chevrolet)?

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

10. Is it necessary to replace all ignition coils if only one is causing the P2312 code in a Chevrolet?

It is not always necessary to replace all ignition coils if only one is faulty. However, it is recommended to inspect all coils and replace any that show signs of wear or damage to prevent future issues.