AutoCodes – GMC – P245D 2015 GMC Sierra

P245D 2015 GMC Sierra 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 2015 GMC Sierra 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 155

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 2015 GMC Sierra 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 2015 GMC Sierra - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage - AutoCodes.com — P245D 2015 GMC Sierra Code - Exhaust Gas Recirculation Cooler Bypass Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P245D 2015 GMC Sierra?

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 2015 GMC Sierra?

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 2015 GMC Sierra 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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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 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P245D in a 2015 GMC Sierra?

- Common symptoms include the check engine light coming on, reduced engine performance, and potential rough idling.

2. What does the OBDII code P245D indicate in a 2015 GMC Sierra?

- OBDII code P245D specifically relates to the Exhaust Gas Recirculation (EGR) Cooler Bypass Control Circuit registering high voltage.

3. What are the possible causes of OBDII code P245D in a 2015 GMC Sierra?

- The code may be triggered by issues such as a faulty EGR cooler bypass control solenoid, damaged wiring, or a malfunctioning EGR system.

4. How can I diagnose OBDII code P245D in my 2015 GMC Sierra?

- To diagnose the issue, you may need to perform a thorough inspection of the EGR system, check the wiring for any damage, and use a diagnostic scanner to read live data.

5. Can I continue driving my 2015 GMC Sierra with OBDII code P245D active?

- It is not advisable to continue driving with the code active, as it can lead to further damage to the EGR system and potentially affect engine performance.

6. How can I repair OBDII code P245D in my 2015 GMC Sierra?

- Repair options may include replacing the EGR cooler bypass control solenoid, repairing damaged wiring, or addressing any underlying issues in the EGR system.

7. Will resetting the OBDII code P245D in my 2015 GMC Sierra make it go away permanently?

- Simply resetting the code may temporarily clear the check engine light, but it is crucial to address the root cause of the issue to prevent the code from reoccurring.

8. Can a DIY enthusiast fix OBDII code P245D in a 2015 GMC Sierra?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair simpler issues related to OBDII code P245D, but complex problems may require professional assistance.

9. How much does it typically cost to repair OBDII code P245D in a 2015 GMC Sierra?

- The cost of repair can vary widely depending on the specific issue causing the code, the parts needed for replacement, and whether you choose to perform the repair yourself or take it to a mechanic.

10. Are there any preventive measures to avoid OBDII code P245D in a 2015 GMC Sierra?

- Regular maintenance of the EGR system, timely replacement of worn components, and addressing any engine performance issues promptly can help prevent the occurrence of OBDII code P245D.