AutoCodes – Chevrolet – P1407 2016 Chevrolet Silverado

P1407 2016 Chevrolet Silverado Code - Exhaust Gas Recirculation Control Circuit Shorted

Quick Answer

The Engine Control Module (ECM) supplies the Exhaust Gas Recirculation (EGR) valve with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and a signal circuit. Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation Valve harness is open or shorted, Exhaust Gas Recirculation Valve circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1407 2016 Chevrolet Silverado indicates Exhaust Gas Recirculation Control Circuit Shorted.
Common causes
Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation Valve harness is open or shorted, Exhaust Gas Recirculation Valve circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 270
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 19, 2022
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Code P1407 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies the Exhaust Gas Recirculation (EGR) valve with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and a signal circuit. The EGR position sensor provides a signal voltage that changes relative to the EGR position. The EGR position sensor information is transmitted between the EGR valve and the ECM on the signal circuit. The Mass Air Flow (MAF) sensor signal is used by the ECM to detect the proper amount of EGR flow. The ECM will close the EGR valve, then open the EGR valve to 100%. The ECM will then calculate the MAF difference and determine if the proper EGR flow has been detected. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a short circuit between the open and close terminals of the EGR motor for greater than 2.5 s.
OBDII Code P1407 2016 Chevrolet Silverado - Exhaust Gas Recirculation Control Circuit Shorted - AutoCodes.com
P1407 2016 Chevrolet Silverado Code - Exhaust Gas Recirculation Control Circuit Shorted

What are the Possible Causes of the DTC P1407 2016 Chevrolet Silverado?

  • Faulty Exhaust Gas Recirculation (EGR) Valve
  • Exhaust Gas Recirculation Valve harness is open or shorted
  • Exhaust Gas Recirculation Valve circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P1407 2016 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 P1407 2016 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 P1407 2016 Chevrolet Silverado code?

Need more information on how to fix the P1407 2016 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 P1407 2016 Chevrolet Silverado Code

What does the OBDII code P1407 mean for a 2016 Chevrolet Silverado?

The P1407 code indicates a problem with the Exhaust Gas Recirculation (EGR) control circuit, specifically a shorted condition.

What are common symptoms of the P1407 code on a 2016 Chevrolet Silverado?

Symptoms may include a check engine light, reduced fuel efficiency, rough idling, and increased emissions.

What causes the P1407 code to appear on a 2016 Chevrolet Silverado?

Common causes include damaged EGR wiring, a shorted EGR control circuit, a faulty EGR valve, or issues with the engine control module (ECM).

Can driving with the P1407 code damage my 2016 Chevrolet Silverado?

Driving with this code can lead to increased emissions and potential engine performance issues but typically won't cause immediate damage if addressed promptly.

How can I diagnose the P1407 code on a 2016 Chevrolet Silverado?

Diagnose the code by inspecting the EGR valve and wiring for damage, testing the EGR circuit for shorts, and using a scan tool to check ECM signals.

Is the P1407 code specific to the EGR valve on a 2016 Chevrolet Silverado?

Yes, this code relates specifically to the EGR system and its control circuit, indicating an electrical issue.

How do I repair the P1407 code on a 2016 Chevrolet Silverado?

Repairs may involve replacing a damaged EGR valve, repairing or replacing faulty wiring, or addressing ECM-related issues.

Will replacing the EGR valve fix the P1407 code on a 2016 Chevrolet Silverado?

Replacing the EGR valve may fix the issue if the valve itself is faulty, but other causes like wiring or circuit problems should also be checked.

Can a shorted EGR circuit cause drivability issues in a 2016 Chevrolet Silverado?

Yes, a shorted EGR circuit can cause drivability issues such as rough idling, poor acceleration, and reduced fuel efficiency.

How much does it typically cost to fix the P1407 code on a 2016 Chevrolet Silverado?

Repair costs vary but can range from $100 to $500 depending on whether the EGR valve, wiring, or ECM needs replacement.

Discuss the causes and fixes for P1407 2016 Chevrolet Silverado OBDII Code

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