P0706 2017 GMC Sierra Code - Transmission Range Switch Performance
Quick Answer
The Transmission Internal Mode Switch (IMS) consists of 5 internal switches, A, B, C, P, and Neutral Start. Common causes include Faulty Transmission Internal Mode Switch (IMS), Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch 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
- P0706 2017 GMC Sierra indicates Transmission Range Switch Performance.
- Common causes
- Common causes include Faulty Transmission Internal Mode Switch (IMS), Transmission Internal Mode Switch harness is open or shorted, Transmission Internal Mode Switch 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 P0706 2017 GMC Sierra Description
The Engine Control Module (ECM) supplies a signal circuit to the neutral start switch. The ECM uses the state of the neutral start switch state as confirmation that the transmission is in neutral or park before the engine starter is engaged.
The Diagnostic Trouble Code (DTC) will be set when the TCM detects engine cranking when the IMS does not indicate park or neutral for 0.2 s.
What are the Possible Causes of the DTC P0706 2017 GMC Sierra?
- Faulty Transmission Internal Mode Switch (IMS)
- Transmission Internal Mode Switch harness is open or shorted
- Transmission Internal Mode Switch circuit poor electrical connection
- Faulty Transmission Control Module (TCM)
How to Fix the DTC P0706 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0706 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.
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Frequently Asked Questions about P0706 2017 GMC Sierra Code
1. What does the OBDII code P0706 mean on a 2017 GMC Sierra?
P0706 indicates an issue with the Transmission Range Sensor (TRS), which monitors the position of the gear selector. The code suggests a performance problem or an incorrect signal from the sensor.
2. What are common symptoms of code P0706 in a 2017 GMC Sierra?
Symptoms may include the check engine light turning on, difficulty shifting gears, improper gear indication on the dashboard, or the vehicle going into "limp mode."
3. What causes code P0706 in a 2017 GMC Sierra?
Common causes include a faulty transmission range sensor, damaged wiring or connectors, corrosion in the sensor circuit, or misaligned gear linkage.
4. Can I drive my 2017 GMC Sierra with a P0706 code?
It is not recommended to drive with this code for extended periods, as it can lead to gear shifting issues, reduced performance, or potential damage to the transmission.
5. How is code P0706 diagnosed on a 2017 GMC Sierra?
A technician will use a scan tool to confirm the code, inspect the transmission range sensor and related wiring, and verify the alignment of the gear selector linkage.
6. How do you fix the P0706 code on a 2017 GMC Sierra?
Repair options include replacing a faulty transmission range sensor, repairing or replacing damaged wiring, cleaning corroded connections, or adjusting the gear selector linkage.
7. How much does it cost to repair code P0706 on a 2017 GMC Sierra?
Repair costs can range from $150 to $400, depending on whether the issue is related to the sensor, wiring, or linkage adjustment.
8. Can a dirty or low transmission fluid level trigger code P0706?
While not a direct cause, dirty or low transmission fluid can contribute to poor transmission performance, potentially leading to related issues. Checking and maintaining proper fluid levels is important.
9. Is code P0706 related to other transmission codes on a 2017 GMC Sierra?
Yes, P0706 can sometimes appear alongside other transmission-related codes, such as P0705 or P0707, which also indicate problems with the transmission range sensor circuit.
10. Can I reset code P0706 without fixing the problem on my 2017 GMC Sierra?
While you can clear the code with a scan tool, it will likely return if the underlying issue is not addressed. Proper diagnosis and repair are necessary to resolve the problem permanently.
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