AutoCodes – GMC – P113B GMC

P113B GMC Code - Exhaust Gas Temperature Sensor 1 Not Plausible

Quick Answer

The exhaust gas temperature sensors are variable resistors that measure the temperature of the exhaust gas at the inlet and outlet of the diesel oxidation catalyst as well as the inlet and outlet of the Diesel Particulate Filter (DPF). 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: P113B GMC indicates Exhaust Gas Temperature Sensor 1 Not Plausible.
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 971

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 Mar 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P113B GMC Description

The exhaust gas temperature sensors are variable resistors that measure the temperature of the exhaust gas at the inlet and outlet of the diesel oxidation catalyst as well as the inlet and outlet of the Diesel Particulate Filter (DPF). The Engine Control Module (ECM) supplies a bias 5-volt signal to the exhaust gas temperature sensor signal circuit and supplies a ground to the low reference circuit. The exhaust gas temperature information is used by the ECM during the particulate filter cleaning process. The following table illustrates the relationship between the temperature of the exhaust gas and the resistance and voltage of the exhaust gas temperature sensor. The Diagnostic Trouble Code (DTC) will be set if the ECM detects an exhaust gas temperature value that is not plausible when the ignition is switched on.

OBDII Code P113B GMC - Exhaust Gas Temperature Sensor 1 Not Plausible - AutoCodes.com — P113B GMC Code - Exhaust Gas Temperature Sensor 1 Not Plausible

What does this mean?

What are the Possible Causes of the DTC P113B GMC?

Faulty Exhaust Gas Temperature Sensor
Exhaust Gas Temperature Sensor harness is open or shorted
Exhaust Gas Temperature Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P113B 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 P113B 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 P113B GMC code?

Need more information on how to fix the P113B GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P113B GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P113B 2014 GMC Sierra — Exhaust Gas Temperature Sensor 1 Not Plausible
P113B 2015 GMC Sierra — Exhaust Gas Temperature Sensor 1 Not Plausible
P113B 2016 GMC Sierra — Exhaust Gas Temperature Sensor 1 Not Plausible
P113B 2017 GMC Sierra — Exhaust Gas Temperature Sensor 1 Not Plausible
P113B 2018 GMC Sierra — Exhaust Gas Temperature Sensor 1 Not Plausible

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 P113B GMC Code

1. What are the common symptoms of OBDII code P113B GMC (Exhaust Gas Temperature Sensor 1 Not Plausible)?

The common symptoms include reduced engine performance, increased fuel consumption, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P113B GMC?

The code P113B GMC may be triggered by a faulty exhaust gas temperature sensor, a wiring issue, or a problem with the engine control module.

3. How can I diagnose the cause of OBDII code P113B GMC?

You can diagnose the code by using a scan tool to read the trouble codes, checking the wiring and connections of the exhaust gas temperature sensor, and performing a visual inspection of the sensor itself.

4. Can I continue driving my vehicle with OBDII code P113B GMC?

It is not recommended to drive your vehicle with the code P113B GMC present, as it can lead to further damage to the engine and emissions system.

5. How can I repair OBDII code P113B GMC?

To repair the code, you may need to replace the exhaust gas temperature sensor, repair any wiring issues, or reprogram the engine control module.

6. Are there any tips for preventing OBDII code P113B GMC from reoccurring?

Regular maintenance of the exhaust gas temperature sensor, checking for wiring issues, and using high-quality fuel can help prevent the code from reoccurring.

7. Can a DIY enthusiast fix OBDII code P113B GMC?

Depending on your skill level and access to tools, you may be able to fix the code yourself by following repair guides and tutorials. However, seeking professional help is recommended for accurate diagnosis and repair.

8. How much does it cost to repair OBDII code P113B GMC?

The cost of repairing the code can vary depending on the cause of the issue, the cost of parts, and labor rates. It is best to get a diagnostic from a mechanic to determine the exact cost.

9. Will resetting the check engine light make OBDII code P113B GMC disappear?

Resetting the check engine light may temporarily turn it off, but if the underlying issue causing the code is not addressed, the light will likely come back on.

10. Is OBDII code P113B GMC a serious problem?

While the code may not cause immediate engine failure, it can lead to decreased performance and efficiency. It is recommended to address the issue promptly to prevent further damage.