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P1355 Buick Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5

Quick Answer

The P1355 Buick code indicates that there is an issue with the Ignition Control Module (ICM) in Cylinder 5 of the vehicle. Common causes include Faulty Ignition Control Module, Wiring issues or shorts, Defective ignition coil in Cylinder 5. 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
P1355 Buick indicates Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5.
Common causes
Common causes include Faulty Ignition Control Module, Wiring issues or shorts, Defective ignition coil in Cylinder 5.
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 10, 2024
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Code P1355 Buick Description

The P1355 Buick code indicates that there is an issue with the Ignition Control Module (ICM) in Cylinder 5 of the vehicle. The code specifically points to the ICM output being high or pulsing when the cylinder is grounded. This can lead to improper ignition timing, misfires, and overall poor engine performance.

OBDII Code P1355 Buick - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5
P1355 Buick Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5

Common Causes of P1355 Buick

  1. Faulty Ignition Control Module
  2. Wiring issues or shorts
  3. Defective ignition coil in Cylinder 5
  4. Engine Control Module (ECM) communication issues
  5. Poor electrical connections

Symptoms of P1355 Buick

  1. Rough idle
  2. Engine misfires
  3. Hesitation during acceleration
  4. Decreased fuel efficiency
  5. Engine stalling

How to Fix P1355 Buick

  1. Diagnose the exact cause of the issue using a scan tool to determine if the problem lies with the Ignition Control Module, wiring, or other components.
  2. Replace the faulty Ignition Control Module or ignition coil in Cylinder 5.
  3. Check and repair any damaged or corroded wiring connections.
  4. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
  5. Perform an engine performance check to verify that the ignition system is functioning correctly.

Cost to Fix P1355 Buick

The typical repair costs for addressing a P1355 Buick code can vary depending on the specific cause of the issue. In general, replacing an Ignition Control Module can range from $150 to $300, while replacing an ignition coil can cost between $50 and $200. Labor costs can add an additional $80 to $150 per hour, depending on the shop's rates and location. It's advisable to consult with a trusted auto repair shop for a more accurate estimate based on your vehicle's make and model.

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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.

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