AutoCodes – Chevrolet – P245D 2018 Chevrolet Silverado

P245D 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 405

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage - AutoCodes.com — P245D 2018 Chevrolet Silverado Code - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P245D 2018 Chevrolet Silverado?

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 2018 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 P245D 2018 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 P245D 2018 Chevrolet Silverado 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 P245D 2018 Chevrolet Silverado Code

What does the OBDII code P245D mean on a 2018 Chevrolet Silverado?

The P245D code indicates a high voltage issue in the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit, which helps manage exhaust gas temperatures and emissions.

What are the symptoms of the P245D code in a Chevrolet Silverado?

Common symptoms include an illuminated check engine light, reduced engine performance, increased emissions, and, in some cases, overheating.

What causes the P245D code to appear?

Potential causes include a faulty EGR cooler bypass valve, damaged wiring or connectors in the EGR bypass control circuit, or an issue with the powertrain control module (PCM).

Can the P245D code cause engine damage if ignored?

While it may not immediately damage the engine, ignoring the code can lead to increased emissions, reduced efficiency, and potential overheating issues over time.

How can I diagnose the P245D code on my Silverado?

Start by using an OBDII scanner to confirm the code, inspect the EGR bypass valve and wiring for damage, and test the circuit voltage using a multimeter to identify faults.

Is the P245D code related to emissions issues?

Yes, the P245D code is related to emissions control and can cause your vehicle to fail an emissions test if unresolved.

Can I drive my Silverado with the P245D code active?

While the vehicle may still run, driving with this code active is not recommended due to possible reduced performance, increased emissions, and potential long-term damage.

How much does it cost to fix the P245D code?

Repair costs can vary but typically range from $100 to $500, depending on whether the issue is with the EGR bypass valve, wiring, or PCM.

Can a software update fix the P245D code?

In some cases, a PCM software update or reflash may resolve the issue if the problem is related to incorrect programming.

How do I prevent the P245D code from recurring?

Regularly maintain your vehicle, inspect the EGR system components for wear or damage, and ensure all wiring connections are secure and free of corrosion.