P1664 Chevrolet Code - Skip Shift 1-4 Upshift Lamp Control Circuit
Quick Answer
The P1664 code for Chevrolet vehicles refers to the Skip Shift 1-4 Upshift Lamp Control Circuit. Common causes include Faulty Skip Shift solenoid, Wiring issues in the Skip Shift circuit, Corrosion or damage to 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
- P1664 Chevrolet indicates Skip Shift 1-4 Upshift Lamp Control Circuit.
- Common causes
- Common causes include Faulty Skip Shift solenoid, Wiring issues in the Skip Shift circuit, Corrosion or damage to 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 P1664 Chevrolet Description
The P1664 code for Chevrolet vehicles refers to the Skip Shift 1-4 Upshift Lamp Control Circuit. This code indicates that there is an issue with the control circuit for the Skip Shift system, which is designed to force a 1-4 upshift under certain driving conditions to improve fuel economy. The Skip Shift system is typically found in manual transmission vehicles and is designed to skip the 2nd and 3rd gear shifts under light acceleration to promote fuel efficiency.
Common Causes of P1664 Chevrolet
- Faulty Skip Shift solenoid
- Wiring issues in the Skip Shift circuit
- Corrosion or damage to electrical connections
- Faulty transmission control module
- Internal transmission issues
Symptoms of P1664 Chevrolet
- Check engine light illuminated
- Difficulty shifting gears
- Reduced fuel efficiency
- Rough shifting
- Engine stalling
How to Fix P1664 Chevrolet
- Diagnose the issue using a scan tool to identify the specific cause of the P1664 code.
- Inspect the Skip Shift solenoid and wiring for any damage or corrosion. Replace any faulty components.
- Check and repair any damaged electrical connections in the Skip Shift circuit.
- If the issue persists, inspect the transmission control module for faults and replace if necessary.
- Test drive the vehicle to ensure that the issue has been resolved and that the Skip Shift system is functioning properly.
Cost to Fix P1664 Chevrolet
The typical repair costs for addressing the P1664 code can vary depending on the specific cause of the issue. In general, you can expect to pay anywhere from $100 to $500 for parts and labor. It's important to note that diagnosis time and labor rates can vary between auto repair shops, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.
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