AutoCodes – GMC – P2485 GMC

P2485 GMC Code - Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5

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 (EGTS) Bank 2 Sensor 5, Exhaust Gas Temperature Sensor Bank 2 Sensor 5 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 5 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: P2485 GMC indicates Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 5, Exhaust Gas Temperature Sensor Bank 2 Sensor 5 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 2 Sensor 5 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 1,299

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 Jan 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2485 GMC 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 P2485 OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.

OBDII Code P2485 GMC - Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5 - AutoCodes.com — P2485 GMC Code - Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5

What does this mean?

What are the Possible Causes of the DTC P2485 GMC?

Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 2 Sensor 5
Exhaust Gas Temperature Sensor Bank 2 Sensor 5 harness is open or shorted
Exhaust Gas Temperature Sensor Bank 2 Sensor 5 circuit poor electrical connection
Exhaust leaks
Excessive particulate matter buildup on sensor

How to Fix the DTC P2485 GMC?

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 P2485 GMC 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 P2485 GMC code?

Need more information on how to fix the P2485 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2485 GMC code diagnosed by a professional: Find a repair shop in your area

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 P2485 GMC Code

1. What are the common symptoms of OBDII code P2485 GMC?

The common symptoms of code P2485 GMC include decreased engine performance, poor fuel efficiency, and the illumination of the check engine light.

2. What does the OBDII code P2485 GMC indicate?

Code P2485 GMC indicates a problem with the exhaust gas temperature sensor circuit for Bank 2 Sensor 5.

3. What are some possible causes of OBDII code P2485 GMC?

Possible causes of code P2485 GMC include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module.

4. How can I diagnose the issue related to OBDII code P2485 GMC?

Diagnosing the issue related to code P2485 GMC involves using a diagnostic scanner to read the code, visually inspecting the sensor and its wiring, and performing continuity and resistance tests on the circuit components.

5. Can I continue driving with OBDII code P2485 GMC?

It is not recommended to continue driving with code P2485 GMC present, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair OBDII code P2485 GMC?

Repairing code P2485 GMC may involve replacing the exhaust gas temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming the engine control module.

7. Is it possible to clear OBDII code P2485 GMC without fixing the issue?

Clearing the code without fixing the underlying issue will only temporarily turn off the check engine light. The problem causing the code will persist and may lead to more serious issues in the future.

8. Are there any DIY tips for addressing OBDII code P2485 GMC?

DIY tips for addressing code P2485 GMC include checking the sensor wiring for any visible damage, ensuring proper sensor connections, and consulting the vehicle's service manual for specific diagnostic and repair procedures.

9. Can a mechanic help me with OBDII code P2485 GMC?

Yes, a qualified mechanic with experience in diagnosing and repairing automotive issues can help you address OBDII code P2485 GMC efficiently and effectively.

10. How much does it typically cost to repair OBDII code P2485 GMC?

The cost of repairing code P2485 GMC can vary depending on the specific cause of the issue, the labor rates in your area, and the cost of any necessary parts. It is advisable to obtain quotes from different mechanics or repair shops for an accurate estimate.