P1198 2015 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Performance Engine Running
Quick Answer
The P1198 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a performance issue with Exhaust Gas Temperature Sensor 5 while the engine is running. Common causes include Faulty Exhaust Gas Temperature Sensor 5, Wiring or connector issues, Exhaust system leaks. 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
- P1198 2015 GMC Sierra indicates Exhaust Gas Temperature Sensor 5 Performance Engine Running.
- Common causes
- Common causes include Faulty Exhaust Gas Temperature Sensor 5, Wiring or connector issues, Exhaust system leaks.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P1198 2015 GMC Sierra Description
The P1198 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a performance issue with Exhaust Gas Temperature Sensor 5 while the engine is running. This sensor is responsible for monitoring the temperature of the exhaust gas before it enters the catalytic converter. The data collected by this sensor is crucial for the engine control module (ECM) to adjust fuel delivery and optimize combustion efficiency.
Common Causes of P1198 2015 GMC Sierra
- Faulty Exhaust Gas Temperature Sensor 5
- Wiring or connector issues
- Exhaust system leaks
- ECM software issues
- Exhaust gas temperature sensor circuit malfunction
Symptoms of P1198 2015 GMC Sierra
- Decreased fuel efficiency
- Rough idling or engine misfires
- Check Engine Light illuminated
- Increased emissions
- Reduced engine performance
How to Fix P1198 2015 GMC Sierra
- Diagnose the issue by using a scan tool to read the code and check the sensor's operation.
- Inspect the wiring and connectors for any damage or corrosion and repair as necessary.
- Test the exhaust system for leaks and repair any leaks found.
- Replace the Exhaust Gas Temperature Sensor 5 if it is determined to be faulty.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1198 2015 GMC Sierra
The typical repair costs for addressing a P1198 code on a 2015 GMC Sierra can range from $150 to $400, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's recommended to check local rates for a more accurate estimate.
Need more information about the P1198 2015 GMC Sierra code?
Need more information on how to fix the P1198 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1198 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1198 2015 GMC Sierra Code
1. What does the OBDII code P1198 mean on a 2015 GMC Sierra?
P1198 indicates an issue with Exhaust Gas Temperature (EGT) Sensor 5, specifically related to its performance while the engine is running.
2. What are the symptoms of code P1198 on a 2015 GMC Sierra?
Common symptoms include reduced engine performance, poor fuel efficiency, excessive emissions, and the illumination of the check engine light.
3. What causes code P1198 on a 2015 GMC Sierra?
Potential causes include a faulty EGT sensor, damaged wiring or connectors, soot buildup on the sensor, or issues with the engine control module (ECM).
4. Can I drive my 2015 GMC Sierra with a P1198 code?
It’s not recommended to drive for extended periods with this code, as it can lead to increased emissions, reduced performance, and potential damage to the exhaust or engine systems.
5. How do you diagnose a P1198 code on a 2015 GMC Sierra?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the EGT sensor and wiring, and testing the sensor’s resistance and voltage output as specified by the manufacturer.
6. How do you fix a P1198 code on a 2015 GMC Sierra?
Repairs may involve replacing the EGT sensor, cleaning soot buildup, repairing damaged wiring, or updating/reprogramming the ECM if necessary.
7. Where is Exhaust Gas Temperature Sensor 5 located on a 2015 GMC Sierra?
Sensor 5 is typically located downstream in the exhaust system, often near or after the diesel particulate filter (DPF), depending on the engine configuration.
8. How much does it cost to fix a P1198 code on a 2015 GMC Sierra?
Repair costs can vary but generally range from $150 to $400, depending on whether the sensor or wiring needs replacement.
9. Can a dirty EGT sensor cause code P1198?
Yes, soot or debris buildup on the sensor can cause incorrect readings, leading to a P1198 code.
10. Will clearing the P1198 code fix the problem?
Clearing the code without addressing the underlying issue will likely cause the code to return. Proper diagnosis and repair are necessary to resolve it.
Discuss the causes and fixes for P1198 2015 GMC Sierra OBDII Code
Code P1198 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.