AutoCodes – GMC – P2312 2016 GMC Sierra

P2312 2016 GMC Sierra 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 2016 GMC Sierra 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 312

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2312 2016 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 P2312 2016 GMC Sierra - Ignition Coil 5 Control Circuit Low Voltage - AutoCodes.com — P2312 2016 GMC Sierra Code - Ignition Coil 5 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2312 2016 GMC Sierra?

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 2016 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 P2312 2016 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 P2312 2016 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 P2312 2016 GMC Sierra Code

1. What are common symptoms of OBDII code P2312 in a 2016 GMC Sierra related to Ignition Coil 5 Control Circuit Low Voltage?

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

2. What are the potential causes of OBDII code P2312 in a 2016 GMC Sierra?

- Possible causes include a faulty ignition coil, damaged wiring or connectors, a malfunctioning Engine Control Module (ECM), or a weak electrical connection.

3. How can I diagnose the issue related to code P2312 in my 2016 GMC Sierra?

- Diagnose the problem by visually inspecting the ignition coil and its connections, testing the coil with a multimeter, checking for damaged wiring, and scanning the ECM for any related fault codes.

4. Can driving with OBDII code P2312 in a 2016 GMC Sierra cause further damage?

- Continuing to drive with this code may lead to reduced engine performance, increased fuel consumption, and potential damage to the catalytic converter.

5. Is it safe to continue driving my 2016 GMC Sierra with OBDII code P2312 present?

- It is not recommended to drive the vehicle with code P2312 as it can lead to potential engine misfires and other issues that may affect the overall performance and safety of the vehicle.

6. How can I repair OBDII code P2312 in a 2016 GMC Sierra related to Ignition Coil 5 Control Circuit Low Voltage?

- Repair options include replacing the faulty ignition coil, repairing damaged wiring or connectors, resetting the ECM, and ensuring all electrical connections are secure.

7. Can I reset the Check Engine Light after repairing OBDII code P2312 in my 2016 GMC Sierra?

- Yes, you can reset the Check Engine Light using an OBDII scanner after addressing the underlying issue causing code P2312.

8. Do I need special tools to fix OBDII code P2312 in a 2016 GMC Sierra?

- While basic tools like a multimeter and wrenches may be needed, it is advisable to consult a professional mechanic for proper diagnosis and repair of code P2312.

9. How much does it cost to repair OBDII code P2312 in a 2016 GMC Sierra at a mechanic's shop?

- The cost of repairs for code P2312 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Are there any preventive measures to avoid OBDII code P2312 in a 2016 GMC Sierra in the future?

- Regular maintenance, such as inspecting ignition components, checking electrical connections, and addressing any warning signs promptly, can help prevent issues leading to code P2312.