P1622 Cadillac Code - Cylinder Select
Quick Answer
The P1622 diagnostic trouble code (DTC) in a Cadillac indicates an issue with the cylinder select function within the engine control module (ECM). Common causes include Faulty cylinder select solenoid, Wiring or electrical connection issues, ECM software malfunction. 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
- P1622 Cadillac indicates Cylinder Select.
- Common causes
- Common causes include Faulty cylinder select solenoid, Wiring or electrical connection issues, ECM software malfunction.
- 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 P1622 Cadillac Description
The P1622 diagnostic trouble code (DTC) in a Cadillac indicates an issue with the cylinder select function within the engine control module (ECM). This code typically affects the vehicle's performance by causing misfires, rough idling, and decreased fuel efficiency. The cylinder select function is responsible for coordinating the firing order of the engine cylinders to ensure smooth operation and optimal performance.
Common Causes of P1622 Cadillac
- Faulty cylinder select solenoid
- Wiring or electrical connection issues
- ECM software malfunction
- Engine mechanical problems, such as low compression
- Sensor malfunction, such as the camshaft position sensor
Symptoms of P1622 Cadillac
- Rough idling or stalling
- Engine misfires
- Decreased fuel efficiency
- Lack of power or acceleration
- Check Engine Light illuminated on the dashboard
How to Fix P1622 Cadillac
- Perform a thorough diagnostic scan to confirm the P1622 code and identify the specific cylinder(s) affected.
- Inspect the cylinder select solenoid and wiring for any damage or corrosion. Replace any faulty components.
- Check the ECM software for updates or reflash if necessary to address any programming issues.
- Conduct a compression test on the affected cylinder(s) to ensure proper engine function.
- Test and replace any malfunctioning sensors, such as the camshaft position sensor, if needed.
Cost to Fix P1622 Cadillac
The typical repair costs for addressing a P1622 code in a Cadillac can range from $200 to $500, depending on the specific issue causing the code and the labor rates at the auto repair shop. Parts such as the cylinder select solenoid or sensors may need to be replaced, adding to the overall cost. It is important to consider the diagnosis time and labor rates at the chosen repair facility, as these can vary based on location and other factors. It is advisable to obtain multiple quotes and compare prices before proceeding with the repair.
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