AutoCodes – Generic – P20E5

P20E5 Code - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P20E5 indicates Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,541

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P20E5 Description

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. The EGTS is located in front of the Diesel Oxidation Catalyst (DOC) and/or in front of the Diesel Particulate Filter (DPF). The EGTS detects exhaust gas temperature and converts it into a voltage and feeds back to the PCM with the voltage signal in order to control engine conditions to effectively reduce emissions. The PCM sets the P20E5 OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.

OBDII Code P20E5 - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2 - AutoCodes.com — P20E5 Code - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2

What does this mean?

What are the Possible Causes of the DTC P20E5?

Faulty Exhaust Gas Temperature Sensor
Exhaust Gas Temperature Sensor harness is open or shorted
Exhaust Gas Temperature Sensor circuit poor electrical connection
Exhaust leaks
Excessive particulate matter buildup on sensor

How to Fix the DTC P20E5?

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 P20E5 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 P20E5 code?

Need more information on how to fix the P20E5 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P20E5 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P20E5 Chevrolet — Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2
P20E5 Dodge — Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2
P20E5 Ford — Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2
P20E5 GMC — Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2

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 P20E5 Code

1. What are the common symptoms of OBDII code P20E5?

The common symptoms of OBDII code P20E5 include reduced engine performance, increased fuel consumption, and the illumination of the Check Engine Light.

2. What does the OBDII code P20E5 indicate?

OBDII code P20E5 indicates a correlation issue between the exhaust gas temperature sensor 1 and sensor 2 on Bank 2 of the vehicle.

3. What are the possible causes of OBDII code P20E5?

Possible causes of OBDII code P20E5 include faulty exhaust gas temperature sensors, wiring issues, sensor placement problems, or a malfunctioning engine control module (ECM).

4. How can I diagnose OBDII code P20E5?

Diagnosing OBDII code P20E5 involves using a scan tool to retrieve the code, checking the wiring and connectors of the exhaust gas temperature sensors, and testing the sensors for proper functionality.

5. Can I continue driving with OBDII code P20E5?

It is not recommended to continue driving with OBDII code P20E5 as it can lead to further damage to the engine and emissions system. It is best to address the issue promptly.

6. How can I repair OBDII code P20E5?

Repairing OBDII code P20E5 may involve replacing the faulty exhaust gas temperature sensors, repairing any damaged wiring or connectors, and resetting the ECM to clear the code.

7. Is it possible to prevent OBDII code P20E5 from occurring?

While some cases of OBDII code P20E5 may be unavoidable due to sensor failures, regular maintenance and timely repairs can help prevent this code from occurring.

8. Can a DIY enthusiast fix OBDII code P20E5?

Depending on the DIY enthusiast's skill level and access to tools, it may be possible to fix OBDII code P20E5. However, seeking professional help is recommended for accurate diagnosis and repair.

9. How important is it to address OBDII code P20E5 promptly?

It is crucial to address OBDII code P20E5 promptly to prevent potential damage to the engine, ensure optimal fuel efficiency, and maintain proper emissions levels.

10. Are there any recalls related to OBDII code P20E5?

Recalls related to OBDII code P20E5 may vary by vehicle make and model. It is advisable to check with the vehicle manufacturer or authorized service center for any relevant recalls.