B0790 2015 GMC Sierra Code - Transfer Case Neutral Indicator Circuit
Quick Answer
The B0790 diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to the Transfer Case Neutral Indicator Circuit. Common causes include Faulty neutral indicator switch, Damaged wiring or connectors in the circuit, Malfunctioning transfer case control module. 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
- B0790 2015 GMC Sierra indicates Transfer Case Neutral Indicator Circuit.
- Common causes
- Common causes include Faulty neutral indicator switch, Damaged wiring or connectors in the circuit, Malfunctioning transfer case control module.
- 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 B0790 2015 GMC Sierra Description
The B0790 diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to the Transfer Case Neutral Indicator Circuit. This code indicates that there is a malfunction in the circuit responsible for the transfer case neutral indicator. The transfer case neutral indicator is a crucial component that informs the driver of the transfer case's current mode, whether it is in two-wheel drive, four-wheel drive, or neutral. When this circuit malfunctions, it can lead to incorrect or no display on the indicator, causing confusion for the driver and potentially affecting the vehicle's performance.
Common Causes of B0790 2015 GMC Sierra
- Faulty neutral indicator switch.
- Damaged wiring or connectors in the circuit.
- Malfunctioning transfer case control module.
- Problem with the instrument cluster.
- Corrosion or moisture in the circuit.
Symptoms of B0790 2015 GMC Sierra
- Incorrect or no display on the transfer case neutral indicator.
- Difficulty engaging the appropriate driving mode.
- Drivability issues, such as slipping or jerking.
- Increased fuel consumption.
- Safety concerns due to uncertainty about the vehicle's drive mode.
How to Fix B0790 2015 GMC Sierra
- Begin by conducting a thorough inspection of the transfer case neutral indicator circuit, including the switch, wiring, connectors, and control module.
- Test the neutral indicator switch for proper functionality using a multimeter.
- Check for any damaged or corroded wiring and connectors, repairing or replacing as necessary.
- If the switch and wiring are in good condition, test the transfer case control module and instrument cluster for faults.
- Clear the DTC from the vehicle's computer after completing the repairs and test the transfer case neutral indicator to ensure proper operation.
Cost to Fix B0790 2015 GMC Sierra
The typical repair costs for addressing the B0790 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, parts for this repair, such as a neutral indicator switch or wiring components, may range from $50 to $200. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total cost for resolving this issue could range from $150 to $500. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.
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Frequently Asked Questions about B0790 2015 GMC Sierra Code
1. What are the common symptoms of OBDII code B0790 in a 2015 GMC Sierra related to the Transfer Case Neutral Indicator Circuit?
The common symptoms include the neutral indicator light staying on or not functioning properly, difficulty shifting gears, or the vehicle getting stuck in neutral.
2. What are the possible causes of OBDII code B0790 in a 2015 GMC Sierra?
Possible causes of this code can be a faulty transfer case control module, damaged wiring or connectors in the indicator circuit, or a malfunctioning neutral safety switch.
3. How can I diagnose OBDII code B0790 in my 2015 GMC Sierra related to the Transfer Case Neutral Indicator Circuit?
You can diagnose this code by checking the wiring and connectors for any visible damage, testing the neutral safety switch for proper functionality, and using a diagnostic scanner to read the codes and identify the specific issue.
4. Can I still drive my 2015 GMC Sierra with OBDII code B0790 related to the Transfer Case Neutral Indicator Circuit?
It is not recommended to drive the vehicle with this code present, as it can lead to potential safety hazards and further damage to the transfer case system. It is best to address the issue promptly.
5. How do I repair OBDII code B0790 in my 2015 GMC Sierra?
To repair this code, you may need to replace the transfer case control module, repair or replace damaged wiring and connectors, or replace the neutral safety switch, depending on the specific cause of the issue.
6. Will resetting the OBDII code B0790 in my 2015 GMC Sierra solve the problem?
Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the code. It is important to diagnose and address the root cause of the problem for a proper repair.
7. Can a DIY enthusiast fix OBDII code B0790 in a 2015 GMC Sierra at home?
While some DIY enthusiasts may have the skills to diagnose and repair this code, it is recommended to seek professional help, especially when dealing with complex electrical systems like the transfer case indicator circuit.
8. How much does it typically cost to repair OBDII code B0790 in a 2015 GMC Sierra at a repair shop?
The cost of repairing this code can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain quotes from multiple shops for comparison.
9. Are there any preventive maintenance tips to avoid OBDII code B0790 in a 2015 GMC Sierra?
Regularly inspecting the transfer case indicator circuit, checking for any signs of wear or damage, and addressing any issues promptly can help prevent the occurrence of this code. Following the manufacturer's recommended maintenance schedule is also important.
10. How long does it take to repair OBDII code B0790 related to the Transfer Case Neutral Indicator Circuit in a 2015 GMC Sierra?
The repair time can vary depending on the specific cause of the issue and the extent of the repair needed. It could take anywhere from a few hours to a full day to diagnose and fix the problem.
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