AutoCodes – Chevrolet – P0357 2018 Chevrolet Silverado

P0357 2018 Chevrolet Silverado Code - Ignition Coil 7 Control Circuit

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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: P0357 2018 Chevrolet Silverado indicates Ignition Coil 7 Control Circuit.
Common causes: Common causes include Faulty Ignition Coil 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 656

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0357 2018 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 P0357 2018 Chevrolet Silverado - Ignition Coil 7 Control Circuit - AutoCodes.com — P0357 2018 Chevrolet Silverado Code - Ignition Coil 7 Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0357 2018 Chevrolet Silverado?

Faulty Ignition Coil 7
Ignition Coil 7 harness is open or shorted
Ignition Coil 7 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0357 2018 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 P0357 2018 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 P0357 2018 Chevrolet Silverado code?

Need more information on how to fix the P0357 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0357 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P0357 2018 Chevrolet Silverado Code

1. What does OBDII code P0357 for a 2018 Chevrolet Silverado mean?

- OBDII code P0357 refers to a problem with the ignition coil 7 control circuit in a 2018 Chevrolet Silverado.

2. What are the common symptoms of OBDII code P0357 in a 2018 Chevrolet Silverado?

- Common symptoms include engine misfires, rough idling, loss of power, and in some cases, the Check Engine light may illuminate.

3. What are possible causes of OBDII code P0357 in a 2018 Chevrolet Silverado?

- Potential causes include a faulty ignition coil, wiring issues in the ignition coil circuit, a poor electrical connection, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the issue related to OBDII code P0357 in my 2018 Chevrolet Silverado?

- Diagnosing the problem involves inspecting the ignition coil and its wiring, checking for loose connections, and using a scan tool to assess the ECM's data for any irregularities.

5. What is the recommended repair for OBDII code P0357 in a 2018 Chevrolet Silverado?

- The most common repair is to replace the faulty ignition coil associated with cylinder 7 and address any wiring or connection issues in the circuit.

6. Can I continue driving my 2018 Chevrolet Silverado with OBDII code P0357 present?

- It is not recommended to drive the vehicle with OBDII code P0357 as it can lead to further engine damage and potential safety risks.

7. How much does it typically cost to repair OBDII code P0357 in a 2018 Chevrolet Silverado?

- The cost of repair can vary depending on the exact cause of the issue, but replacing an ignition coil and addressing related wiring problems can range from $150 to $300.

8. Are there any preventative measures to avoid OBDII code P0357 in a 2018 Chevrolet Silverado?

- Regular maintenance, such as checking and replacing ignition coils as recommended by the manufacturer, can help prevent issues that trigger OBDII code P0357.

9. Can a DIY enthusiast fix OBDII code P0357 in a 2018 Chevrolet Silverado?

- While some may attempt the repair themselves, it is recommended to seek professional help for diagnosing and fixing issues related to the ignition coil control circuit.

10. How long does it typically take to repair OBDII code P0357 in a 2018 Chevrolet Silverado?

- The repair time can vary based on the exact problem, but replacing an ignition coil and addressing related wiring issues usually takes around 1-2 hours at a repair shop.