P216C 2016 GMC Sierra Code - Cylinder 5 Injector High Control Circuit High Voltage
Quick Answer
The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 circuit poor electrical connection. 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
- P216C 2016 GMC Sierra indicates Cylinder 5 Injector High Control Circuit High Voltage.
- Common causes
- Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 circuit poor electrical connection.
- 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.
Code P216C 2016 GMC Sierra Description
What are the Possible Causes of the DTC P216C 2016 GMC Sierra?
- Faulty Fuel Injector 5
- Fuel Injector 5 harness is open or shorted
- Fuel Injector 5 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P216C 2016 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P216C 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P216C 2016 GMC Sierra Code
1. What does the OBDII code P216C mean on a 2016 GMC Sierra?
The P216C code indicates a problem with the Cylinder 5 Injector High Control Circuit, specifically that the circuit is experiencing higher-than-expected voltage.
2. What are the common symptoms of a P216C code in a 2016 GMC Sierra?
Symptoms may include rough engine idle, reduced power, misfiring, poor fuel economy, or an illuminated check engine light.
3. What causes the P216C code to appear on a 2016 GMC Sierra?
Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning powertrain control module (PCM), or a poor electrical ground connection.
4. Can I drive my 2016 GMC Sierra with the P216C code?
Driving with this code is not recommended as it can lead to reduced performance, engine damage, or further electrical issues.
5. How do I diagnose the P216C code on a 2016 GMC Sierra?
Diagnose the issue by inspecting the wiring and connectors for Cylinder 5's injector, testing the injector for proper resistance, and using a multimeter to check for voltage irregularities in the circuit.
6. How do I fix the P216C code on my 2016 GMC Sierra?
Repairs may involve replacing the faulty injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.
7. How much does it cost to fix the P216C code on a 2016 GMC Sierra?
Repair costs vary but may range from $200 to $600 or more, depending on whether the injector, wiring, or PCM needs replacement.
8. Can a dirty fuel injector cause the P216C code?
While a dirty injector can cause performance issues, this code specifically relates to an electrical problem in the injector circuit, not clogging.
9. Will clearing the P216C code with a scanner fix the issue?
Clearing the code will turn off the check engine light temporarily, but the issue will return if the underlying problem is not resolved.
10. Can a faulty PCM cause the P216C code on a 2016 GMC Sierra?
Yes, a malfunctioning PCM could send incorrect voltage signals to the injector, triggering the P216C code.
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