P1356 Buick Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 6
Quick Answer
The P1356 Buick trouble code indicates that the Ignition Control Module (ICM) has detected a high output voltage or pulse on cylinder 6 when it is supposed to be grounded. Common causes include Faulty Ignition Control Module, Damaged wiring or connectors in the ignition system, Malfunctioning spark plug or 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 Buick indicates Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 6.
- Common causes
- Common causes include Faulty Ignition Control Module, Damaged wiring or connectors in the ignition system, Malfunctioning spark plug or 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 Buick Description
The P1356 Buick trouble code indicates that the Ignition Control Module (ICM) has detected a high output voltage or pulse on cylinder 6 when it is supposed to be grounded. The ICM is responsible for controlling the ignition timing and firing sequence of the spark plugs in the engine. When this code is triggered, it means that there is a malfunction in the ICM's ability to properly control the ignition system for cylinder 6, which can lead to misfires, poor engine performance, and potential damage to the catalytic converter.
Common Causes of P1356 Buick
- Faulty Ignition Control Module
- Damaged wiring or connectors in the ignition system
- Malfunctioning spark plug or ignition coil
- Problem with the Engine Control Module (ECM)
- Corrosion or moisture affecting electrical components
Symptoms of P1356 Buick
- Rough idling or engine misfires
- Hesitation or stumbling during acceleration
- Decreased fuel efficiency
- Engine stalling or difficulty starting
- Check Engine Light illuminated on the dashboard
How to Fix P1356 Buick
- Use a diagnostic scan tool to confirm the P1356 code and identify cylinder 6.
- Inspect the wiring and connectors in the ignition system for any damage or corrosion.
- Test the Ignition Control Module and ignition coil for proper function.
- Replace any faulty components, such as the ICM, ignition coil, or spark plug in cylinder 6.
- Clear the trouble code from the vehicle's memory and test drive to ensure the issue has been resolved.
Cost to Fix P1356 Buick
The typical repair costs for addressing the P1356 Buick trouble code can vary depending on the specific cause of the issue and the parts needed for repair. On average, the cost of replacing an Ignition Control Module can range from $150 to $300, while the cost of a new ignition coil or spark plug can be around $50 to $100 each. Labor costs at auto repair shops can range from $80 to $150 per hour, with the total repair bill likely falling between $250 and $500. It's important to note that these are rough estimates, and actual costs may vary based on the vehicle's make and model, as well as the location and labor rates of the repair shop.
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