P1356 Chevrolet Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 6
Quick Answer
The P1356 Chevrolet code indicates that there is a problem with the Ignition Control Module (ICM) output for cylinder 6 in the engine. Common causes include Faulty Ignition Control Module, Wiring harness issues, Faulty cylinder 6 ignition coil. 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
- P1356 Chevrolet indicates Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 6.
- Common causes
- Common causes include Faulty Ignition Control Module, Wiring harness issues, Faulty cylinder 6 ignition coil.
- 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 P1356 Chevrolet Description
The P1356 Chevrolet code indicates that there is a problem with the Ignition Control Module (ICM) output for cylinder 6 in the engine. Specifically, it detects a high voltage or pulse when the cylinder is grounded, which can lead to misfires, rough engine performance, and potentially even engine stalling. The ICM is responsible for controlling the ignition timing of the engine, ensuring that the spark plugs fire at the correct time for optimal combustion. When the ICM output for cylinder 6 is not functioning properly, it can cause a disruption in the ignition process, leading to a variety of performance issues.
Common Causes of P1356 Chevrolet
- Faulty Ignition Control Module
- Wiring harness issues
- Faulty cylinder 6 ignition coil
- Electrical system problems
- Engine overheating
Symptoms of P1356 Chevrolet
- Rough idling or engine misfires
- Decreased engine performance
- Engine stalling or hesitation
- Check Engine Light illuminated
- Increased fuel consumption
How to Fix P1356 Chevrolet
- Diagnose the issue using a scan tool to confirm the P1356 code and inspect the ICM, wiring, and ignition coil for any visible damage.
- Replace the Ignition Control Module if it is found to be faulty, ensuring proper installation and connection.
- Check and repair any damaged wiring harnesses or connections between the ICM and cylinder 6 ignition coil.
- Replace the cylinder 6 ignition coil if it is determined to be the cause of the issue.
- Clear the trouble codes, reset the engine control module, and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1356 Chevrolet
The typical repair costs for addressing a P1356 Chevrolet code can vary depending on the specific cause of the issue and the parts required for the repair. In general, replacing the Ignition Control Module can cost between $150 and $300, while replacing an ignition coil may range from $50 to $150. Labor costs can add an additional $100 to $200, bringing the total repair estimate to around $250 to $500. It's important to note that these estimates are rough averages, and actual costs may vary based on the vehicle's make and model, as well as local labor rates. It's advisable to consult with a trusted mechanic or auto repair shop for a more accurate cost estimate.
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