P1355 Chevrolet Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5
Quick Answer
The P1355 code for Chevrolet vehicles indicates that there is an issue with the Ignition Control Module (ICM) output being high or a pulse being detected when the cylinder 5 is grounded. Common causes include Faulty ignition control module, Wiring or connection issues between the ICM and cylinder 5, Defective ignition coil for 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 Chevrolet indicates Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 5.
- Common causes
- Common causes include Faulty ignition control module, Wiring or connection issues between the ICM and cylinder 5, Defective ignition coil for 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.
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Code P1355 Chevrolet Description
The P1355 code for Chevrolet vehicles indicates that there is an issue with the Ignition Control Module (ICM) output being high or a pulse being detected when the cylinder 5 is grounded. This means that there is a problem with the electrical signal being sent to the ignition coil for cylinder 5, potentially leading to misfires or other performance issues. The ICM plays a crucial role in controlling the ignition system, ensuring that the spark plugs fire at the correct time to ignite the air-fuel mixture in the engine cylinders. When this signal is disrupted, it can lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter over time.
Common Causes of P1355 Chevrolet
- Faulty ignition control module
- Wiring or connection issues between the ICM and cylinder 5
- Defective ignition coil for cylinder 5
- Electronic control module (ECM) malfunction
- Engine timing issues
Symptoms of P1355 Chevrolet
- Engine misfires or rough idling
- Loss of power or acceleration
- Decreased fuel efficiency
- Illumination of the check engine light
- Engine stalling or difficulty starting
How to Fix P1355 Chevrolet
- Diagnose the specific cause of the issue using a scan tool to pinpoint the exact source of the problem.
- Inspect the wiring and connections between the ICM and cylinder 5, repairing or replacing any damaged components.
- Test the ignition coil for cylinder 5 and replace if found to be faulty.
- Check the electronic control module (ECM) for any faults and reprogram if necessary.
- Clear the error code from the vehicle's computer and test drive to ensure the issue has been resolved.
Cost to Fix P1355 Chevrolet
The cost of repairing a P1355 code on a Chevrolet vehicle can vary depending on the specific cause of the issue. In general, the parts required for this repair, such as an ignition control module or ignition coil, can range from $100 to $300. Labor costs can add an additional $100 to $200, depending on the shop's hourly rates and the complexity of the repair. Overall, the total cost for addressing this code typically falls within the range of $200 to $500. It's recommended to consult with a trusted mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.
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