P0706 2016 GMC Sierra Code - Transmission Range Switch Performance
Quick Answer
The P0706 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Transmission Range Switch (TRS) performance. Common causes include Faulty Transmission Range Switch (TRS), Damaged wiring or connectors related to the TRS, Misaligned or incorrectly installed TRS. 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 2016 GMC Sierra indicates Transmission Range Switch Performance.
- Common causes
- Common causes include Faulty Transmission Range Switch (TRS), Damaged wiring or connectors related to the TRS, Misaligned or incorrectly installed TRS.
- 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 P0706 2016 GMC Sierra Description
The P0706 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Transmission Range Switch (TRS) performance. The TRS, also known as the neutral safety switch, is a crucial component of the vehicle's transmission system. It is responsible for informing the engine control module (ECM) about the gear position selected by the driver (Park, Reverse, Neutral, Drive, etc.). This information is essential for the ECM to adjust various parameters such as shift points, torque converter lockup, and engine braking.
Common Causes of P0706 2016 GMC Sierra
- Faulty Transmission Range Switch (TRS).
- Damaged wiring or connectors related to the TRS.
- Misaligned or incorrectly installed TRS.
- Issues with the Engine Control Module (ECM) communication.
Symptoms of P0706 2016 GMC Sierra
- Difficulty shifting gears or inability to shift into certain gears.
- Delayed engagement when shifting from Park to Drive or Reverse.
- Harsh or rough shifting while driving.
- Inability to start the engine or intermittent starting issues.
- Illumination of the Check Engine Light on the dashboard.
How to Fix P0706 2016 GMC Sierra
- Begin by diagnosing the exact cause of the P0706 code using a professional OBD-II scanner.
- Inspect the TRS, wiring, and connectors for any visible damage or corrosion.
- Test the TRS for proper functionality using a multimeter or scan tool.
- Replace the TRS if it is found to be faulty, ensuring proper alignment and installation.
- Clear the DTC and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P0706 2016 GMC Sierra
The typical repair costs for addressing a P0706 code on a 2016 GMC Sierra can vary depending on the exact cause of the issue. In general, replacing a faulty Transmission Range Switch (TRS) can cost between $150 and $300 for the part, with additional labor costs ranging from $100 to $200. Overall, the total repair cost could range from $250 to $500, including parts and labor. It is important to note that specific diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local providers for a more accurate estimate.
Tech Notes for P0706 2016 GMC Sierra
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