AutoCodes – Chevrolet – P2157 2014 Chevrolet Silverado

P2157 2014 Chevrolet Silverado Code - Cylinder 4 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 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 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: P2157 2014 Chevrolet Silverado indicates Cylinder 4 Injector High Control Circuit High Voltage.
Common causes: Common causes include Faulty Fuel Injector 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 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.

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Code Popularity 226

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2157 2014 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector high voltage supply circuit is shorted to voltage for greater than 2 s.

OBDII Code P2157 2014 Chevrolet Silverado - Cylinder 4 Injector High Control Circuit High Voltage - AutoCodes.com — P2157 2014 Chevrolet Silverado Code - Cylinder 4 Injector High Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2157 2014 Chevrolet Silverado?

Faulty Fuel Injector 4
Fuel Injector 4 harness is open or shorted
Fuel Injector 4 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2157 2014 Chevrolet Silverado?

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 P2157 2014 Chevrolet Silverado 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.

Need more information about the P2157 2014 Chevrolet Silverado code?

Need more information on how to fix the P2157 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P2157 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2157 on a 2014 Chevrolet Silverado?

- Common symptoms include rough idling, poor engine performance, decreased fuel efficiency, and potential engine misfires.

2. What does the OBDII code P2157 "Cylinder 4 Injector High Control Circuit High Voltage" mean?

- This code indicates that there is a high voltage condition in the control circuit of the fuel injector for cylinder 4 in the engine.

3. What are the possible causes of OBDII code P2157 on a 2014 Chevrolet Silverado?

- Possible causes include a malfunctioning fuel injector, wiring issues in the injector circuit, a faulty PCM (Powertrain Control Module), or a poor electrical connection.

4. How can I diagnose the OBDII code P2157 on my 2014 Chevrolet Silverado?

- Diagnosis typically involves inspecting the wiring and connections related to the cylinder 4 fuel injector, testing the injector for proper operation, and checking the PCM for any faults.

5. Can I still drive my 2014 Chevrolet Silverado with OBDII code P2157 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage and potential safety hazards.

6. How can I repair OBDII code P2157 on my 2014 Chevrolet Silverado?

- Repair may involve replacing the fuel injector for cylinder 4, repairing any damaged wiring or connections, resetting the PCM, or seeking professional help for a more thorough diagnosis.

7. Are there any DIY tips for fixing OBDII code P2157 on a 2014 Chevrolet Silverado?

- DIY tips may include checking and cleaning the electrical connections, ensuring proper wire insulation, and performing a visual inspection for any visible damage.

8. Is it safe to clear the OBDII code P2157 on my 2014 Chevrolet Silverado without fixing the issue?

- Clearing the code without addressing the underlying problem may temporarily remove the warning light, but the issue will likely resurface, leading to potential further damage.

9. How long does it typically take to repair OBDII code P2157 on a 2014 Chevrolet Silverado?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from a few hours to a full day for a thorough diagnosis and repair.

10. Can OBDII code P2157 on a 2014 Chevrolet Silverado cause other problems if left unfixed?

- If left unfixed, OBDII code P2157 can potentially lead to decreased engine performance, increased fuel consumption, further damage to engine components, and possibly trigger additional warning lights.