P216B Code - Cylinder 5 Injector High Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code P216B indicates an issue with the cylinder 5 injector high control circuit having low voltage. Common causes include Faulty injector in cylinder 5, Damaged wiring or connectors in the injector control circuit, Defective 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
- P216B indicates Cylinder 5 Injector High Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty injector in cylinder 5, Damaged wiring or connectors in the injector control circuit, Defective 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.
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Code P216B Description
The diagnostic trouble code P216B indicates an issue with the cylinder 5 injector high control circuit having low voltage. In a fuel injection system, the injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time. The control circuit ensures that the injector operates correctly by providing the necessary voltage to activate it. When the voltage in the control circuit for cylinder 5 injector drops below the specified threshold, the P216B trouble code is triggered.
Common Causes of P216B
- Faulty injector in cylinder 5
- Damaged wiring or connectors in the injector control circuit
- Defective engine control module (ECM)
- Fuel system pressure issues
Symptoms of P216B
- Misfires in cylinder 5
- Rough idling or stalling
- Poor acceleration
- Decreased fuel efficiency
- Engine hesitation during acceleration
How to Fix P216B
- Use a diagnostic scanner to verify the P216B trouble code and identify the specific cylinder 5 injector high control circuit low voltage issue.
- Inspect the wiring and connectors in the control circuit for any damage or loose connections. Repair or replace as needed.
- Test the injector in cylinder 5 to determine if it is functioning properly. Replace if necessary.
- Check the fuel system pressure to ensure it is within the manufacturer's specifications.
- Clear the trouble code from the ECM memory and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P216B
The typical repair costs for addressing the P216B trouble code can vary depending on the specific cause of the issue. Generally, replacing a faulty injector, repairing damaged wiring or connectors, or addressing fuel system pressure problems can range from $200 to $600, including parts and labor. However, it's essential to note that actual repair costs can fluctuate based on location, vehicle make and model, and labor rates at the auto repair shop. It's recommended to obtain a personalized estimate from a trusted mechanic to determine the accurate cost for resolving this issue.
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Code P216B Information for Specific Makes
- P216B Buick — Cylinder 5 Injector High Control Circuit Low Voltage
- P216B Cadillac — Cylinder 5 Injector High Control Circuit Low Voltage
- P216B Chevrolet — Cylinder 5 Injector High Control Circuit Low Voltage
- P216B GMC — Cylinder 5 Injector High Control Circuit Low Voltage
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