Engine-CodesGMC – P0352 GMC

P0352 GMC Code - Ignition Coil 2 Control Circuit

Quick Answer

The P0352 GMC code indicates a problem with the ignition coil 2 control circuit in a GMC vehicle. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Corrosion or loose connections in the ignition coil circuit. 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
P0352 GMC indicates Ignition Coil 2 Control Circuit.
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Corrosion or loose connections in the ignition coil circuit.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P0352 GMC Description

The P0352 GMC code indicates a problem with the ignition coil 2 control circuit in a GMC vehicle. The ignition coil is a crucial component of the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine cylinders. When the ignition coil 2 control circuit malfunctions, it can lead to issues with engine performance, fuel efficiency, and overall drivability.

OBDII Code P0352 GMC - Ignition Coil 2 Control Circuit
P0352 GMC Code - Ignition Coil 2 Control Circuit

Common Causes of P0352 GMC

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Corrosion or loose connections in the ignition coil circuit
  4. Issues with the engine control module (ECM)
  5. Electrical problems such as shorts or open circuits

Symptoms of P0352 GMC

  1. Engine misfires
  2. Rough idle
  3. Difficulty starting the engine
  4. Decreased fuel efficiency
  5. Illuminated check engine light

How to Fix P0352 GMC

  1. Perform a thorough inspection of the ignition coil 2 control circuit to check for any damage, corrosion, or loose connections.
  2. Test the ignition coil 2 using a multimeter to determine if it is functioning properly.
  3. Replace the ignition coil 2 if it is found to be faulty.
  4. Repair or replace any damaged wiring or connectors in the ignition coil circuit.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0352 GMC

The cost of repairing the ignition coil 2 control circuit can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, the repair cost for this issue can range from $150 to $300, including parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a few quotes from different shops to compare prices.

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Information for Specific GMC Models

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.

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