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How To Fix Range Shift Inhibited

How to Fix Range Shift Inhibited: Troubleshooting Guide and Solutions

Sure! Here’s a troubleshooting guide and solutions for fixing the «Range Shift Inhibited» issue:

Step 1: Check Transmission Fluid
Ensure that the transmission fluid level is at the appropriate range. Low fluid levels can cause the «Range Shift Inhibited» message to appear. If the fluid levels are low, refill it to the recommended level.

Step 2: Inspect Transmission Wiring
Inspect the wiring harness and connectors associated with the transmission system. Look for any signs of damage or loose connections. If any issues are found, repair or replace the damaged components.

Step 3: Reset Transmission Control Module (TCM)
Resetting the TCM can help resolve software glitches causing the «Range Shift Inhibited» problem. Disconnect the battery for about 10 minutes, then reconnect it. This will reset the TCM and clear any stored error codes.

Step 4: Check Transmission Sensors
There are several sensors in the transmission system that can trigger the «Range Shift Inhibited» issue if they malfunction. Use a diagnostic tool to check for any error codes related to the sensors. Replace any faulty sensors as necessary.

Step 5: Seek Professional Help
If the above steps don’t resolve the issue, it’s recommended to consult a professional mechanic or contact the manufacturer’s customer support for further assistance. They may have specific recommendations or diagnostic procedures tailored to your vehicle model.

Remember, it’s important to prioritize your safety when dealing with transmission issues. If you feel unsure or uncomfortable performing any of the troubleshooting steps, it’s best to seek professional help.


What is the meaning of range inhibition?

In the context of «How to fix,» range inhibition refers to a situation where a device or system is unable to reach its full operational range or performance due to certain limitations or issues. These limitations can be caused by various factors such as hardware or software issues, settings, compatibility problems, or external interference. Resolving range inhibition involves identifying and addressing the specific cause of the limitation in order to restore the device or system to its optimal functionality.

What does the term «shift inhibitor» mean?

A «shift inhibitor» is a component in a vehicle’s transmission system that prevents the gear shifting mechanism from engaging or disengaging when it shouldn’t. This term refers to a device that ensures the transmission only shifts gears when the conditions are appropriate and avoids any unintended or accidental shifting. This mechanism is crucial for maintaining control and preventing potential damage to the transmission system.

How can I tell if my NSBU switch is faulty?

To determine if your NSBU (Neutral Start Back Up) switch is faulty, you can perform the following steps:

1. Inspect the NSBU switch: Locate the NSBU switch, which is typically located on the transmission or the gear selector lever. Check for any visible damage or signs of wear on the switch or its wiring.

2. Check for transmission-related issues: A faulty NSBU switch can cause various transmission-related issues, such as the inability to start the vehicle or difficulty shifting gears. If you’re experiencing any of these problems, it may indicate a faulty NSBU switch.

3. Perform a diagnostic scan: To confirm if the NSBU switch is indeed faulty, you can use an OBD-II scanner or a diagnostic tool compatible with your vehicle. Connect the scanner to the OBD-II port, usually located under the dashboard, and follow the manufacturer’s instructions to scan for trouble codes related to the NSBU switch.

4. Interpret the trouble codes: If the scanner detects trouble codes related to the NSBU switch, it generally indicates a fault. Common codes include P0705 (Transmission Range Sensor Circuit Malfunction) or P0706 (Transmission Range Sensor Circuit Range/Performance).

5. Test the NSBU switch: You can perform a physical test of the NSBU switch using a multimeter. Set the multimeter to continuity mode and disconnect the electrical connector from the NSBU switch. Probe the terminals on the switch while shifting through different gears. If you don’t get consistent continuity readings or no continuity at all, it suggests a faulty switch.

6. Consult a professional: If you’re unsure about the diagnosis or unable to perform the tests yourself, it’s recommended to consult a professional mechanic or a dealership. They will have the necessary tools and expertise to accurately diagnose and replace the faulty NSBU switch if needed.

Remember, working on the transmission components may require advanced mechanical skills, so if you’re not confident in your abilities, it’s best to seek professional assistance.

What does the PO700 code mean on a 2005 Duramax?

The P0700 code on a 2005 Duramax indicates a problem with the transmission control system. This code is a generic transmission code that means there are additional transmission codes stored in the vehicle’s computer.

It is important to note that the P0700 code alone does not specify the exact nature of the problem. To diagnose and fix the issue, you will need to retrieve the additional transmission codes using a scan tool. These codes will provide more specific information about the specific component or circuit that is causing the transmission control system to malfunction.

Once you have retrieved the additional transmission codes, you can research and identify the specific part or system that needs attention. From there, you can follow the appropriate repair procedures to fix the issue. It may involve replacing a faulty sensor, solenoid, or wiring harness.

It is recommended to seek professional help, such as a certified mechanic or technician, who has experience with transmission repairs, to accurately diagnose and fix the issue.

Questions you’ve probably asked yourself

How to fix «Range Shift Inhibited» error message on my car?

To fix the «Range Shift Inhibited» error message on your car, try resetting the transmission control module (TCM) by disconnecting the battery for about 15 minutes. If that doesn’t work, it may indicate a more serious issue with the transmission and *professional diagnosis and repair* from a qualified mechanic is recommended.

What are the common causes of a «Range Shift Inhibited» issue and how can I fix it?

The common causes of a «Range Shift Inhibited» issue are a faulty transmission range switch, low transmission fluid level, or a worn-out transmission. To fix this issue, you can try checking and replacing the transmission range switch if necessary, ensuring the transmission fluid is at the proper level, and getting a professional inspection and repair if the transmission is worn out. Remember to consult your vehicle’s manual or seek professional help for accurate diagnosis and repair.

Are there any DIY solutions available to resolve the «Range Shift Inhibited» problem without visiting a mechanic?

Yes, there are some DIY solutions available to resolve the «Range Shift Inhibited» problem without visiting a mechanic. These include checking the transmission fluid level and condition, inspecting for any damaged wiring or electrical connections, resetting the vehicle’s computer system by disconnecting the battery, and ensuring that the shift linkage is properly adjusted. However, it is important to note that if these fixes do not resolve the issue, it is recommended to seek professional help to avoid further damage to the vehicle.

In conclusion, Range Shift Inhibited is a common issue faced by many vehicle owners. However, with the right knowledge and guidance, it can be easily resolved. By following the steps outlined in this article, you can successfully fix the Range Shift Inhibited problem and get your vehicle back on the road. Remember to always consult your vehicle’s manual or seek professional help if needed. Don’t let this issue hinder your driving experience any longer – take action and resolve it today!

James Fixman
Written By

James, a seasoned DIY enthusiast and problem solver, is the driving force behind HowToFix.ONE. With a knack for fixing everything from household appliances to automobiles, James shares his wealth of knowledge to help readers navigate the world of DIY fixes. His practical advice and step-by-step guides demystify the process of repair and maintenance, empowering everyone to become their own handyman.

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