P2147 2016 GMC Sierra Code - Cylinder 1 Injector High Control Circuit Low 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 1, Fuel Injector 1 harness is open or shorted, Fuel Injector 1 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
- P2147 2016 GMC Sierra indicates Cylinder 1 Injector High Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty Fuel Injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector 1 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 P2147 2016 GMC Sierra Description
What are the Possible Causes of the DTC P2147 2016 GMC Sierra?
- Faulty Fuel Injector 1
- Fuel Injector 1 harness is open or shorted
- Fuel Injector 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2147 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 P2147 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 P2147 2016 GMC Sierra Code
1. What does the OBDII code P2147 mean on a 2016 GMC Sierra?
The P2147 code indicates a problem with the Cylinder 1 Injector High Control Circuit, reporting low voltage.
2. What are common symptoms of a P2147 code on a 2016 GMC Sierra?
Symptoms may include rough idling, reduced engine performance, poor fuel economy, misfires, or the engine running in limp mode.
3. What causes the P2147 code to appear on a 2016 GMC Sierra?
Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a failed injector control module, or a low system voltage issue.
4. Can I drive my 2016 GMC Sierra with a P2147 code?
Driving with a P2147 code is not recommended, as it can lead to reduced engine performance and potential damage to other components.
5. How do I diagnose a P2147 code on a 2016 GMC Sierra?
Diagnosis involves inspecting the wiring and connectors for damage, testing the injector control circuit for proper voltage, and checking the fuel injector and control module for faults.
6. How much does it cost to fix a P2147 code on a 2016 GMC Sierra?
Repair costs vary but may range from $100 for simple wiring repairs to $500 or more if the fuel injector or control module needs replacement.
7. Can a bad battery cause the P2147 code on a 2016 GMC Sierra?
Yes, a weak or failing battery can cause low voltage in the injector control circuit, triggering the P2147 code.
8. Will clearing the P2147 code fix the problem on a 2016 GMC Sierra?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
9. What tools are needed to troubleshoot the P2147 code on a 2016 GMC Sierra?
Tools include an OBDII scanner, a multimeter for voltage testing, and possibly a test light for checking the injector circuit.
10. Can a dirty fuel injector cause the P2147 code on a 2016 GMC Sierra?
A dirty injector is unlikely to directly cause this code, but it could lead to performance issues that may contribute to injector circuit faults.
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