P1358 Buick Code - Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8
Quick Answer
The P1358 Buick code indicates that there is an issue with the Ignition Control Module (ICM) output being high or pulsing when the cylinder 8 is grounded. Common causes include Faulty Ignition Control Module (ICM), Wiring issues or shorts in the ICM circuit, Poor electrical connections. 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
- P1358 Buick indicates Ignition Control Module Output High/Pulse Detected When Grounded Cylinder 8.
- Common causes
- Common causes include Faulty Ignition Control Module (ICM), Wiring issues or shorts in the ICM circuit, Poor electrical connections.
- 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 P1358 Buick Description
The P1358 Buick code indicates that there is an issue with the Ignition Control Module (ICM) output being high or pulsing when the cylinder 8 is grounded. The ICM is a key component in the ignition system of the vehicle, responsible for controlling the timing of the ignition coils and spark plugs. When this code is triggered, it means that there is a malfunction in the ICM's output related to cylinder 8, which can lead to misfires, rough idling, and overall poor engine performance.
Common Causes of P1358 Buick
- Faulty Ignition Control Module (ICM)
- Wiring issues or shorts in the ICM circuit
- Poor electrical connections
- ECM communication errors
- Cylinder 8 ignition coil or spark plug issues
Symptoms of P1358 Buick
- Engine misfires
- Rough idling
- Decreased engine power
- Hesitation during acceleration
- Increased fuel consumption
How to Fix P1358 Buick
- Diagnose the specific cause of the issue using a scan tool to pinpoint the faulty component.
- Inspect the wiring and connections related to the ICM and cylinder 8 for any damage or corrosion.
- Replace the Ignition Control Module if it is determined to be faulty.
- Test the system after the repair to ensure that the issue has been resolved.
- Clear the diagnostic trouble codes and reset the ECM to complete the repair process.
Cost to Fix P1358 Buick
The typical repair costs for addressing a P1358 Buick code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing the Ignition Control Module can cost between $150 to $300 for the part alone. Labor costs can range from $100 to $200, with the total repair bill potentially amounting to $250 to $500. It's important to note that these are rough estimates, and actual costs may differ based on the factors mentioned above. It's recommended to consult with a local auto repair shop for a more accurate cost estimate.
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