Engine-CodesChevrolet – P2147 2017 Chevrolet Silverado

P2147 2017 Chevrolet Silverado Code - Cylinder 1 Injector High Control Circuit Low Voltage

Quick Answer

The P2147 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the Cylinder 1 Injector High Control Circuit Low Voltage. Common causes include Faulty fuel injector, Wiring or connector issues, Damaged fuel injector driver module. 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 2017 Chevrolet Silverado indicates Cylinder 1 Injector High Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector, Wiring or connector issues, Damaged fuel injector driver module.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P2147 2017 Chevrolet Silverado Description

The P2147 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the Cylinder 1 Injector High Control Circuit Low Voltage. This means that there is a problem with the electrical circuit that controls the fuel injector for cylinder 1 in the engine. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber for efficient combustion and engine performance. When the control circuit voltage is too low, it can lead to improper fuel delivery, affecting the engine's performance and overall efficiency.

OBDII Code P2147 2017 Chevrolet Silverado - Cylinder 1 Injector High Control Circuit Low Voltage
P2147 2017 Chevrolet Silverado Code - Cylinder 1 Injector High Control Circuit Low Voltage

Common Causes of P2147 2017 Chevrolet Silverado

  1. Faulty fuel injector
  2. Wiring or connector issues
  3. Damaged fuel injector driver module
  4. Problem with the engine control module (ECM)
  5. Electrical system issues

Symptoms of P2147 2017 Chevrolet Silverado

  1. Rough idling
  2. Engine misfires
  3. Decreased fuel efficiency
  4. Loss of power
  5. Engine stalling

How to Fix P2147 2017 Chevrolet Silverado

  1. Perform a thorough inspection of the wiring and connectors associated with the Cylinder 1 fuel injector.
  2. Test the fuel injector and its driver module for proper functionality.
  3. Check the engine control module (ECM) for any faults or errors.
  4. Replace the faulty fuel injector, wiring, connectors, or driver module as necessary.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2147 2017 Chevrolet Silverado

The typical repair costs for addressing a Cylinder 1 Injector High Control Circuit Low Voltage issue can vary depending on the specific cause of the problem and the required repairs. In general, replacing a faulty fuel injector or related components can range from $200 to $600, including parts and labor. Additional diagnostic time and labor rates at auto repair shops can vary, typically ranging between $80 and $150 per hour. It's advisable to consult with a qualified mechanic or dealership for a more accurate cost estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2147 2017 Chevrolet Silverado Code

1. What does the OBDII code P2147 mean on a 2017 Chevrolet Silverado?

P2147 indicates a problem with the Cylinder 1 Injector High Control Circuit, specifically low voltage, which means the injector is not receiving the correct electrical signal.

2. What are the common symptoms of a P2147 code?

Symptoms include poor engine performance, rough idling, misfires, reduced fuel efficiency, hesitation or stalling, and the check engine light illuminated.

3. What causes the P2147 code to appear?

Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a failed injector driver in the PCM, or corrosion in the electrical connections.

4. Can I drive my 2017 Chevrolet Silverado with a P2147 code?

While the truck may still run, driving with this code can lead to further damage, reduced performance, and potential safety concerns. It's best to address the issue promptly.

5. How do you diagnose a P2147 code?

Diagnosis involves inspecting the injector wiring and connectors, testing the fuel injector's resistance, checking for voltage at the injector connector, and possibly testing the PCM output.

6. How can I fix the P2147 error code?

Repairs may include replacing the faulty injector, repairing or replacing damaged wiring or connectors, or addressing issues with the PCM if necessary.

7. Is the P2147 code specific to Cylinder 1?

Yes, this code specifically refers to the high control circuit for Cylinder 1's fuel injector.

8. How much does it cost to repair a P2147 code on a Silverado?

Repair costs vary but can range from $200 to $600+ depending on whether the fuel injector, wiring, or PCM needs replacement.

9. Can a dirty fuel injector cause the P2147 code?

A dirty injector typically causes performance issues but is unlikely to trigger a P2147 code, which usually points to electrical or circuit-related problems.

10. Will clearing the code fix the P2147 issue?

Clearing the code may turn off the check engine light temporarily, but the underlying issue must be resolved to prevent the code from returning.

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