P066B 2017 Chevrolet Silverado Code - Cylinder 1 Glow Plug Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P066B in a 2017 Chevrolet Silverado indicates an issue with the Cylinder 1 Glow Plug Control Circuit experiencing high voltage. Common causes include Faulty glow plug in cylinder 1, Damaged wiring or connectors in the glow plug control circuit, Malfunctioning engine control module (ECM). 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
- P066B 2017 Chevrolet Silverado indicates Cylinder 1 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 1, Damaged wiring or connectors in the glow plug control circuit, Malfunctioning engine control module (ECM).
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P066B 2017 Chevrolet Silverado Description
The diagnostic trouble code P066B in a 2017 Chevrolet Silverado indicates an issue with the Cylinder 1 Glow Plug Control Circuit experiencing high voltage. Glow plugs are essential components in diesel engines, as they heat the combustion chamber to facilitate cold starts. When the engine control module (ECM) detects high voltage in the glow plug control circuit for cylinder 1, it signifies a malfunction that can impact the vehicle's performance.
Common Causes of P066B 2017 Chevrolet Silverado
- Faulty glow plug in cylinder 1
- Damaged wiring or connectors in the glow plug control circuit
- Malfunctioning engine control module (ECM)
- Issues with the vehicle's electrical system
- Corrosion or poor connections in the circuit
Symptoms of P066B 2017 Chevrolet Silverado
- Difficulty starting the engine, especially in cold weather
- Rough idling or engine misfires
- Decreased fuel efficiency
- Increased emissions
- Check Engine Light illuminated on the dashboard
How to Fix P066B 2017 Chevrolet Silverado
- Begin by conducting a thorough inspection of the glow plug in cylinder 1, checking for any signs of damage or wear.
- Inspect the wiring and connectors in the glow plug control circuit, repairing or replacing any damaged components.
- Test the engine control module (ECM) to ensure it is functioning correctly, replacing it if necessary.
- Clear the diagnostic trouble code from the ECM's memory using a diagnostic scanner.
- Test the vehicle to verify that the issue has been resolved and that the glow plug control circuit is operating within normal parameters.
Cost to Fix P066B 2017 Chevrolet Silverado
The typical repair costs for addressing a Cylinder 1 Glow Plug Control Circuit High Voltage issue in a 2017 Chevrolet Silverado can range from $150 to $400, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's advisable to obtain local estimates for a more accurate cost assessment.
Need more information about the P066B 2017 Chevrolet Silverado code?
Need more information on how to fix the P066B 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P066B 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P066B 2017 Chevrolet Silverado Code
No Frequently Asked Questions about P066B 2017 Chevrolet Silverado Code found.
Discuss the causes and fixes for P066B 2017 Chevrolet Silverado OBDII Code
Code P066B 2017 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.