P0706 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado?
- 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 2018 Chevrolet Silverado?
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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code
1. What does the OBDII code P0706 mean on a 2018 Chevrolet Silverado?
Code P0706 indicates an issue with the transmission range switch, which is responsible for detecting the position of the gear selector.
2. What are common symptoms of P0706 in a 2018 Chevrolet Silverado?
Symptoms may include the inability to shift gears, the transmission being stuck in one gear, incorrect gear display on the dashboard, or difficulty starting the vehicle.
3. What causes the P0706 code in a Chevrolet Silverado?
The code can be triggered by a faulty transmission range switch, damaged wiring or connectors, misalignment of the switch, or transmission fluid contamination.
4. Can P0706 affect the drivability of my 2018 Silverado?
Yes, this code can cause shifting problems, reduced performance, or the vehicle being stuck in limp mode, affecting overall drivability.
5. How can I diagnose the P0706 code on my Silverado?
Use an OBDII scanner to confirm the code, then inspect the transmission range switch, wiring, and connectors for damage or corrosion.
6. Is it safe to drive with the P0706 code?
It’s not recommended to drive with this code as it may lead to transmission damage or unsafe driving conditions.
7. How do I fix the P0706 code on a 2018 Chevrolet Silverado?
Repairs may involve replacing the transmission range switch, repairing damaged wiring or connectors, or adjusting the switch alignment.
8. What is the cost to repair the P0706 code on a Silverado?
Repair costs can vary but typically range from $200 to $500, depending on whether the transmission range switch or wiring needs replacement.
9. Can low transmission fluid cause the P0706 code?
Yes, low or contaminated transmission fluid can affect the performance of the transmission range switch and trigger the code.
10. Will clearing the P0706 code solve the problem?
Clearing the code without addressing the underlying issue will likely result in the code returning, as the root cause has not been fixed.
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