AutoCodes – Chevrolet – P245A Chevrolet

P245A Chevrolet Code - Exhaust Gas Recirculation Cooler Bypass Control Circuit

Quick Answer

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) bypass valve position sensor to determine the position of the bypass valve. Common causes include Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve, Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted, Exhaust Gas Recirculation Cooler Bypass 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: P245A Chevrolet indicates Exhaust Gas Recirculation Cooler Bypass Control Circuit.
Common causes: Common causes include Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve, Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted, Exhaust Gas Recirculation Cooler Bypass 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 1,673

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 30, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P245A Chevrolet Description

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) bypass valve position sensor to determine the position of the bypass valve. The ECM sends a reference voltage through the 5-volt reference circuit to the position sensor. The ECM provides a voltage return path for the sensor through the low reference circuit. A variable voltage signal, based on the valve position, is sent from the sensor to the ECM through the position sensor signal circuit. The ECM compares the actual bypass valve position with the desired bypass valve position when the valve is commanded open or closed. The EGR cooler bypass valve is controlled by the ECM through the bypass valve motor high control and the low control circuits. The ECM will pulse width modulate the low control circuit to ground when EGR cooler bypass is desired.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects an open circuit condition of the EGR cooler bypass valve control circuit for greater than 3 s.

OBDII Code P245A Chevrolet - Exhaust Gas Recirculation Cooler Bypass Control Circuit - AutoCodes.com — P245A Chevrolet Code - Exhaust Gas Recirculation Cooler Bypass Control Circuit

What does this mean?

What are the Possible Causes of the DTC P245A Chevrolet?

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

How to Fix the DTC P245A Chevrolet?

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 P245A Chevrolet 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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Information for Specific Chevrolet Models

P245A 2014 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit
P245A 2015 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit
P245A 2016 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit
P245A 2017 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit
P245A 2018 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit

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 P245A Chevrolet Code

1. What are the common symptoms of OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

The common symptoms include poor engine performance, decreased fuel efficiency, and the illumination of the Check Engine Light.

2. What are the typical causes of OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

Common causes of this code include a malfunctioning EGR cooler bypass control valve, wiring issues, or a faulty engine control module (ECM).

3. How can I diagnose OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

Diagnosis involves using a scan tool to retrieve the code, inspecting the EGR cooler bypass control valve and its wiring for damage, and testing the ECM for proper functionality.

4. Can I continue driving my Chevrolet with OBDII code P245A related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potentially worsen engine performance over time.

5. Is it possible to repair OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit myself?

While some DIY enthusiasts may attempt to address this issue, it is recommended to consult a professional mechanic or dealership due to the complexity of the EGR system.

6. How much does it typically cost to repair OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $600, including parts and labor.

7. Are there any preventive maintenance tips to avoid OBDII code P245A related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit in a Chevrolet?

Regularly servicing the EGR system, including cleaning or replacing components, can help prevent issues that may trigger this code.

8. Can a malfunctioning Exhaust Gas Recirculation Cooler Bypass Control Circuit impact the overall performance of my Chevrolet?

Yes, a malfunctioning EGR system can affect engine performance, fuel efficiency, and emissions, so it is important to address this issue promptly.

9. How long does it typically take to repair OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

The repair time can vary based on the exact cause of the issue and the availability of parts, but it may take a few hours to a day to complete the repair.

10. Is it safe to reset the Check Engine Light after repairing OBDII code P245A in a Chevrolet related to the Exhaust Gas Recirculation Cooler Bypass Control Circuit?

Yes, once the issue is successfully repaired, it is safe to reset the Check Engine Light using a scan tool to clear the stored trouble code.