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Engine-Codes – Generic – P0357

P0357 Code - Ignition Coil 7 Control Circuit

Quick Answer

The P0357 code indicates a problem with the ignition coil 7 control circuit in the vehicle's engine. Common causes include Faulty ignition coil, Damaged or corroded wiring in the control circuit, Issues with the engine control module (ECM). 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 indicates Ignition Coil 7 Control Circuit.
Common causes
Common causes include Faulty ignition coil, Damaged or corroded wiring in the control circuit, Issues with the engine control module (ECM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P0357 Description

The P0357 code indicates a problem with the ignition coil 7 control circuit in the vehicle's engine. The ignition coil is responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel in the engine cylinders. Ignition coil 7 refers to the specific coil that is associated with the seventh cylinder in the engine.

OBDII Code P0357 - Ignition Coil 7 Control Circuit
P0357 Code - Ignition Coil 7 Control Circuit

Common Causes of P0357

  1. Faulty ignition coil
  2. Damaged or corroded wiring in the control circuit
  3. Issues with the engine control module (ECM)
  4. Poor electrical connection to the ignition coil
  5. Engine overheating causing damage to the ignition coil

Symptoms of P0357

  1. Misfires or hesitation during acceleration
  2. Rough idling or engine stalling
  3. Decreased fuel efficiency
  4. Illumination of the Check Engine Light
  5. Difficulty starting the engine

How to Fix P0357

  1. Start by inspecting the ignition coil 7 and its associated wiring for any visible damage or corrosion. Replace the ignition coil if necessary.
  2. Test the continuity of the wiring in the control circuit using a multimeter to check for any breaks or shorts.
  3. Check the electrical connections to the ignition coil for tightness and corrosion. Clean or replace as needed.
  4. If the issue persists, have the engine control module (ECM) scanned for any faults or updates needed. Replace if necessary.
  5. Clear the diagnostic code using an OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0357

The cost of repairing the ignition coil 7 control circuit can vary depending on the make and model of the vehicle, as well as the location of the repair shop. On average, the parts for this repair can range from $50 to $150, while the labor costs can range from $100 to $200. This estimate does not include any additional diagnostic fees that may be charged by the repair shop. It's recommended to get quotes from multiple shops to ensure a competitive price for the repair.

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Code P0357 Information for Specific Makes

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 Code

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