P1196 2018 GMC Sierra Code - Exhaust Gas Temperature Sensor 3 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
- P1196 2018 GMC Sierra indicates Exhaust Gas Temperature Sensor 3 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 P1196 2018 GMC Sierra Description
What are the Possible Causes of the DTC P1196 2018 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 P1196 2018 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 P1196 2018 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 P1196 2018 GMC Sierra code?
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Frequently Asked Questions about P1196 2018 GMC Sierra Code
1. What does the OBDII code P1196 mean on a 2018 GMC Sierra?
P1196 indicates that the Exhaust Gas Temperature (EGT) Sensor 3 is not performing as expected while the engine is running. This sensor monitors exhaust gas temperature to ensure proper operation of the emissions system.
2. What are the symptoms of code P1196 in a 2018 GMC Sierra?
Common symptoms include an illuminated check engine light, reduced fuel efficiency, poor engine performance, or the vehicle entering limp mode.
3. What causes the P1196 code to appear in a 2018 GMC Sierra?
Possible causes include a faulty EGT Sensor 3, wiring or connector issues, excessive soot or carbon buildup on the sensor, or a malfunction in the exhaust or emissions system.
4. How do I diagnose the P1196 code in my GMC Sierra?
Start by using an OBDII scanner to confirm the code, then inspect the wiring and connectors for damage. Check the EGT sensor for proper function and look for signs of soot buildup or damage to the exhaust system.
5. Can a faulty EGT Sensor 3 cause engine damage in a 2018 GMC Sierra?
If left unresolved, a faulty EGT sensor could lead to improper exhaust gas temperatures, potentially causing damage to the catalytic converter or other exhaust components.
6. How can I fix the P1196 code on my 2018 GMC Sierra?
Repair or replace the EGT Sensor 3 if it is faulty, clean off any soot buildup, and repair any damaged wiring or connectors. If necessary, update the vehicle’s ECU software.
7. Is it safe to drive my 2018 GMC Sierra with the P1196 code?
It’s not recommended to drive for extended periods with the P1196 code, as it may lead to reduced performance, increased emissions, or damage to the exhaust system.
8. How much does it cost to repair the P1196 code on a 2018 GMC Sierra?
The repair cost can vary, but replacing the EGT sensor typically costs between $150 and $300, depending on labor rates and parts pricing. Additional repairs may increase costs.
9. Can a P1196 code clear itself on a 2018 GMC Sierra?
The code may clear temporarily if the issue is intermittent, but it will likely return if the underlying problem is not resolved.
10. What tools do I need to fix the P1196 code on my GMC Sierra?
You’ll need an OBDII scanner, basic hand tools, and possibly a multimeter to diagnose and repair wiring issues. A service manual can also be helpful.
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