P1197 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 4 Performance Engine Running
Quick Answer
The exhaust gas temperature sensors are variable resistors that measure the temperature of the exhaust gas. 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
- P1197 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 4 Performance Engine Running.
- 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.
Code P1197 2017 GMC Sierra Description
What are the Possible Causes of the DTC P1197 2017 GMC Sierra?
- 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 P1197 2017 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 P1197 2017 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.
Need more information about the P1197 2017 GMC Sierra code?
Need more information on how to fix the P1197 2017 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1197 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1197 2017 GMC Sierra Code
What does the P1197 code mean on a 2017 GMC Sierra?
The P1197 code indicates an issue with the performance of Exhaust Gas Temperature (EGT) Sensor 4 while the engine is running.
What are the symptoms of the P1197 code?
Symptoms may include an illuminated check engine light, reduced engine performance, and higher-than-normal exhaust temperatures.
What causes the P1197 code to appear?
Common causes include a faulty EGT Sensor 4, wiring damage or corrosion in the sensor circuit, or issues with the engine control module (ECM).
Can I drive with the P1197 code on my 2017 GMC Sierra?
It’s not recommended, as ignoring the issue can lead to engine overheating, reduced fuel efficiency, or damage to the exhaust system.
How do I diagnose the P1197 code?
Start by scanning the vehicle with an OBDII scanner, inspecting the EGT Sensor 4 and its wiring, and checking for any related codes or faults.
How do I fix the P1197 code?
Repairs may include replacing the EGT Sensor 4, repairing or replacing damaged wiring, or updating/reprogramming the ECM if necessary.
What tools do I need to fix the P1197 code?
You’ll need an OBDII scanner, a multimeter for testing the sensor and wiring, and basic hand tools for sensor replacement.
Is the P1197 code covered under warranty for my 2017 GMC Sierra?
It depends on your vehicle's warranty terms. Emissions-related components may be covered under the federally mandated emissions warranty.
How much does it cost to repair the P1197 code?
Replacing an EGT sensor typically costs $150–$300, including parts and labor. Wiring repairs or ECM reprogramming may increase costs.
Can a dirty diesel particulate filter (DPF) cause the P1197 code?
Yes, a clogged DPF can lead to abnormal exhaust temperatures, potentially triggering this code.
Discuss the causes and fixes for P1197 2017 GMC Sierra OBDII Code
Code P1197 2017 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.
