P0706 2018 GMC Sierra Code - Transmission Range Switch Performance
Quick Answer
The P0706 diagnostic trouble code (DTC) for the 2018 GMC Sierra relates to the transmission range switch's performance. Common causes include Faulty transmission range switch, Damaged or corroded wiring harness, ECM malfunction. 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
- P0706 2018 GMC Sierra indicates Transmission Range Switch Performance.
- Common causes
- Common causes include Faulty transmission range switch, Damaged or corroded wiring harness, ECM malfunction.
- 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 P0706 2018 GMC Sierra Description
The P0706 diagnostic trouble code (DTC) for the 2018 GMC Sierra relates to the transmission range switch's performance. This switch, also known as the neutral safety switch or transmission position sensor, is responsible for indicating the gear position to the vehicle's electronic control module (ECM). The ECM uses this information to control various functions, such as starting the engine, shifting gears, and activating the reverse lights.
Common Causes of P0706 2018 GMC Sierra
- Faulty transmission range switch
- Damaged or corroded wiring harness
- ECM malfunction
- Electrical connections issues
- Wear and tear over time
Symptoms of P0706 2018 GMC Sierra
- Difficulty starting the engine
- Incorrect gear selection or transmission shifting
- Inability to shift gears smoothly
- Dashboard warning lights related to transmission issues
- Loss of reverse lights functionality
How to Fix P0706 2018 GMC Sierra
- Diagnose the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the exact problem.
- Inspect the transmission range switch and wiring harness for any signs of damage or corrosion.
- Test the ECM for proper functioning and communication with the transmission range switch.
- Replace the faulty transmission range switch if necessary, ensuring proper alignment and calibration.
- Clear the trouble codes and perform a test drive to confirm that the issue has been resolved.
Cost to Fix P0706 2018 GMC Sierra
The typical repair costs for addressing a P0706 code on a 2018 GMC Sierra can range from $200 to $500, including parts and labor. However, the 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. It's recommended to check with local shops for accurate estimates before proceeding with the repair.
Tech Notes for P0706 2018 GMC Sierra
Need more information about the P0706 2018 GMC Sierra code?
Need more information on how to fix the P0706 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0706 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0706 2018 GMC Sierra Code
1. What does OBDII code P0706 mean for a 2018 GMC Sierra?
P0706 indicates an issue with the Transmission Range Switch, which monitors the gear selection and sends signals to the vehicle's computer.
2. What are common symptoms of code P0706 in a 2018 GMC Sierra?
Symptoms include erratic shifting, inability to start in certain gears, transmission stuck in limp mode, or the check engine light illuminating.
3. What causes code P0706 in a 2018 GMC Sierra?
Common causes include a faulty Transmission Range Switch, damaged wiring or connectors, or issues with the transmission control module.
4. Can driving with code P0706 damage my 2018 GMC Sierra?
Yes, driving with this code can lead to further transmission issues or unsafe driving conditions due to erratic gear shifting.
5. How do I diagnose code P0706 in my 2018 GMC Sierra?
Use an OBDII scanner to confirm the code, inspect the Transmission Range Switch, and check the wiring and connectors for damage or corrosion.
6. How do I fix code P0706 on a 2018 GMC Sierra?
Repairs may include replacing the Transmission Range Switch, repairing damaged wiring, or updating the transmission control module software.
7. How much does it cost to repair code P0706 on a 2018 GMC Sierra?
The repair cost can range from $200 to $500, depending on whether the Transmission Range Switch or wiring needs replacement.
8. Can low transmission fluid cause code P0706 on a 2018 GMC Sierra?
Low transmission fluid typically won't cause P0706 directly, but it can cause other transmission-related issues that may trigger similar symptoms.
9. Do I need a professional to fix code P0706 on my 2018 GMC Sierra?
While DIY repairs are possible for some, diagnosing and fixing transmission-related issues often requires professional expertise and specialized tools.
10. Is resetting the check engine light enough to resolve code P0706 on a 2018 GMC Sierra?
No, resetting the light without addressing the underlying issue will not resolve the problem and the code is likely to return.
Discuss the causes and fixes for P0706 2018 GMC Sierra OBDII Code
Code P0706 2018 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.