B0790 2014 GMC Sierra Code - Transfer Case Neutral Indicator Circuit
Quick Answer
The Neutral indicator circuit consists of a Light Emitting Diode (LED) feed circuit, an LED, and an LED control circuit. Common causes include Faulty Transfer Case Select Switch, Transfer Case Select Switch harness is open or shorted, Transfer Case Select Switch circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- B0790 2014 GMC Sierra indicates Transfer Case Neutral Indicator Circuit.
- Common causes
- Common causes include Faulty Transfer Case Select Switch, Transfer Case Select Switch harness is open or shorted, Transfer Case Select Switch circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code B0790 2014 GMC Sierra Description
The TCCM tests the Neutral indicator circuit for unexpected voltage by monitoring the B+ supplied by the BCM on the Ignition 1 voltage circuit by grounding the Neutral indicator control circuit for 2 seconds during the Bulb Test at key ON.
What are the Possible Causes of the DTC B0790 2014 GMC Sierra?
- Faulty Transfer Case Select Switch
- Transfer Case Select Switch harness is open or shorted
- Transfer Case Select Switch circuit poor electrical connection
- Faulty Transfer Case Shift Control Module (TCCM)
How to Fix the DTC B0790 2014 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0790 2014 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.
Need more information about the B0790 2014 GMC Sierra code?
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Frequently Asked Questions about B0790 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code B0790 in a 2014 GMC Sierra related to the Transfer Case Neutral Indicator Circuit?
- The common symptoms include the transfer case neutral indicator not working properly or displaying incorrect information on the dashboard.
2. What are the possible causes of OBDII code B0790 in a 2014 GMC Sierra?
- The possible causes can range from a faulty transfer case control module, damaged wiring or connectors, to a malfunctioning transfer case position sensor.
3. How can I diagnose the issue causing OBDII code B0790 in my 2014 GMC Sierra?
- To diagnose the issue, you can use a diagnostic scanner to read the code and perform a visual inspection of the transfer case wiring and connectors. Testing the transfer case position sensor may also be necessary.
4. Can I still drive my 2014 GMC Sierra with OBDII code B0790?
- It is not recommended to drive your vehicle with this code present, as it can lead to potential safety issues or further damage to the transfer case system.
5. How do I repair OBDII code B0790 in my 2014 GMC Sierra?
- Repairing this code typically involves fixing the underlying issue causing the malfunction, such as replacing a faulty transfer case control module, repairing damaged wiring, or replacing the transfer case position sensor.
6. Is it possible to reset OBDII code B0790 in a 2014 GMC Sierra without repairing the issue?
- While you can clear the code using a diagnostic scanner, it is crucial to address the root cause of the problem to prevent the code from reappearing.
7. Can a DIY enthusiast fix OBDII code B0790 in a 2014 GMC Sierra?
- Depending on your mechanical skills and access to tools, some DIY enthusiasts may be able to diagnose and repair this code. However, complex issues may require professional intervention.
8. How much does it typically cost to repair OBDII code B0790 in a 2014 GMC Sierra?
- The cost of repair can vary based on the specific cause of the issue. On average, repairs related to this code can range from $200 to $800, including parts and labor.
9. Are there any preventive maintenance tips to avoid OBDII code B0790 in a 2014 GMC Sierra?
- Regularly inspecting and maintaining the transfer case system, including checking for any signs of wear or damage, can help prevent issues that may trigger this code.
10. Will OBDII code B0790 cause my 2014 GMC Sierra to fail an emissions test?
- If left unresolved, this code can potentially lead to a failed emissions test due to its impact on the transfer case system. It's essential to address the issue promptly to ensure your vehicle meets emissions standards.
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