AutoCodes – Chevrolet – P245D Chevrolet

P245D Chevrolet Code - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage

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: P245D Chevrolet indicates Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage.
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 731

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 P245D 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 that the EGR cooler bypass valve control circuits are shorted to voltage for greater than 3 s.

OBDII Code P245D Chevrolet - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage - AutoCodes.com — P245D Chevrolet Code - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P245D 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 P245D 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 P245D 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

P245D 2014 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage
P245D 2015 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage
P245D 2016 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage
P245D 2017 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage
P245D 2018 Chevrolet Silverado — Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage

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 P245D Chevrolet Code

1. What are the common symptoms of OBDII code P245D in a Chevrolet related to the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit High Voltage?

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

2. What typically causes the OBDII code P245D in a Chevrolet indicating a high voltage issue in the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit?

This code is usually triggered by a malfunction in the EGR Cooler Bypass Control Circuit, which can be caused by a faulty EGR cooler bypass solenoid, damaged wiring, or a poor connection.

3. How can I diagnose the OBDII code P245D in my Chevrolet that points to a high voltage problem in the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit?

Diagnosing this code usually involves inspecting the EGR cooler bypass solenoid, checking the wiring for any damage, and testing the circuit for proper voltage levels using a multimeter.

4. Are there any specific repair tips for addressing the OBDII code P245D related to the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit High Voltage in a Chevrolet?

When repairing this issue, it is important to carefully inspect the EGR cooler bypass solenoid, replace any damaged wiring, and ensure all connections are secure to resolve the high voltage problem.

5. Can driving with the OBDII code P245D in a Chevrolet caused by a high voltage issue in the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit damage the vehicle further?

Continuing to drive with this code may lead to further damage to the EGR system and potentially affect the overall performance and efficiency of the engine, so it is recommended to address the issue promptly.

6. How do I reset the Check Engine light after repairing the OBDII code P245D in my Chevrolet related to the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit?

After repairing the issue causing the P245D code, you can reset the Check Engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes to clear the error code.

7. Is it safe to continue driving my Chevrolet with the OBDII code P245D indicating a high voltage problem in the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit?

While you may be able to drive the vehicle with this code, it is advisable to address the underlying issue promptly to prevent any potential long-term damage to the EGR system and ensure optimal engine performance.

8. What is the function of the Exhaust Gas Recirculation (EGR) system in a Chevrolet, and how does it relate to the OBDII code P245D indicating a high voltage issue in the EGR Cooler Bypass Control Circuit?

The EGR system helps reduce emissions by recirculating a portion of the exhaust gases back into the engine for combustion. The high voltage issue in the EGR Cooler Bypass Control Circuit, as indicated by the P245D code, can disrupt this process and lead to performance issues.

9. Are there any preventative maintenance tips to avoid encountering the OBDII code P245D in a Chevrolet due to a high voltage problem in the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit?

Regularly inspecting the EGR system, addressing any signs of damage or wear promptly, and following the manufacturer's recommended maintenance schedule can help prevent issues like the P245D code from occurring.

10. How critical is it to address the OBDII code P245D in a Chevrolet related to the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit High Voltage promptly?

It is important to address this code promptly to avoid potential damage to the EGR system, prevent decreased engine performance, and ensure optimal fuel efficiency in your Chevrolet.