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Engine-Codes – GMC – B0785 2014 GMC Sierra

B0785 2014 GMC Sierra Code - Two Wheel Drive High Range Indicator Circuit

Quick Answer

The B0785 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Two Wheel Drive High Range Indicator Circuit. Common causes include Faulty indicator light, Wiring issues, Loose connections. 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
B0785 2014 GMC Sierra indicates Two Wheel Drive High Range Indicator Circuit.
Common causes
Common causes include Faulty indicator light, Wiring issues, Loose connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B0785 2014 GMC Sierra Description

The B0785 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Two Wheel Drive High Range Indicator Circuit. This code indicates a malfunction in the circuit that controls the indicator light for the two-wheel drive high range mode. In vehicles with selectable four-wheel drive systems, the two-wheel drive high range mode is used for normal driving conditions on dry roads. When this code is triggered, it means that the vehicle's computer has detected an issue with the circuit responsible for displaying the status of the two-wheel drive high range mode.

OBDII Code B0785 2014 GMC Sierra - Two Wheel Drive High Range Indicator Circuit
B0785 2014 GMC Sierra Code - Two Wheel Drive High Range Indicator Circuit

Common Causes of B0785 2014 GMC Sierra

  1. Faulty indicator light
  2. Wiring issues
  3. Loose connections
  4. Blown fuse
  5. Malfunctioning control module

Symptoms of B0785 2014 GMC Sierra

  1. Illumination of the Check Engine Light
  2. Inoperative Two Wheel Drive High Range Indicator Light
  3. Inaccurate or erratic indicator light behavior
  4. Difficulty engaging or disengaging the two-wheel drive high range mode

How to Fix B0785 2014 GMC Sierra

  1. Begin by conducting a visual inspection of the indicator light, wiring, and connections to identify any obvious issues such as loose connections or damage.
  2. Test the indicator light and associated components to determine if they are functioning correctly.
  3. Use a multimeter to check for continuity in the circuit and ensure that the wiring is intact.
  4. If necessary, replace the faulty indicator light, repair any damaged wiring, tighten loose connections, replace a blown fuse, or address any other identified issues.
  5. Clear the DTC and test the system to verify that the indicator light now operates correctly.

Cost to Fix B0785 2014 GMC Sierra

The cost of repairing a Two Wheel Drive High Range Indicator Circuit issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, the cost of parts for this repair could range from $50 to $200, while the labor costs may be around $100 to $300. However, it is important to note that these estimates are approximate, and actual costs may differ based on factors such as location, vehicle make and model, and the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B0785 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B0785 in a 2014 GMC Sierra?

The common symptoms of code B0785 in a 2014 GMC Sierra include the two-wheel drive high range indicator not functioning properly or illuminating on the dashboard.

2. What are the possible causes of OBDII code B0785 in a 2014 GMC Sierra?

Possible causes of code B0785 in a 2014 GMC Sierra include a faulty two-wheel drive high range indicator switch, damaged wiring or connectors, or a malfunctioning transfer case control module.

3. How can I diagnose OBDII code B0785 in my 2014 GMC Sierra?

To diagnose code B0785 in a 2014 GMC Sierra, you can use a scan tool to retrieve the specific fault code, inspect the indicator switch and its wiring for any visible damage, and perform a thorough check of the transfer case control module.

4. Are there any DIY repair tips for fixing OBDII code B0785 in a 2014 GMC Sierra?

If you are comfortable with automotive repairs, you can try replacing the two-wheel drive high range indicator switch yourself after confirming it is the faulty component causing the code B0785 in your 2014 GMC Sierra.

5. Can OBDII code B0785 in a 2014 GMC Sierra cause any other issues with the vehicle?

While code B0785 specifically relates to the two-wheel drive high range indicator circuit, if left unresolved, it may lead to confusion about the current drive mode engaged or potential issues with the transfer case functionality.

6. Is it safe to continue driving my 2014 GMC Sierra with OBDII code B0785 present?

It is generally safe to drive your 2014 GMC Sierra with code B0785, but it is recommended to address the issue promptly to ensure accurate indication of the vehicle's drive mode and to prevent any potential transfer case control problems.

7. How much does it typically cost to repair OBDII code B0785 in a 2014 GMC Sierra at a professional auto repair shop?

The cost of repairing code B0785 in a 2014 GMC Sierra can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor at a professional auto repair shop.

8. Can a disconnected battery reset OBDII code B0785 in a 2014 GMC Sierra?

Disconnecting the battery may temporarily clear the code, but if the underlying issue causing code B0785 is not addressed, it is likely to reappear after driving the vehicle for a certain period.

9. Will OBDII code B0785 cause my 2014 GMC Sierra to fail an emissions test?

In most cases, code B0785 alone is not directly related to emissions, so it should not cause your 2014 GMC Sierra to fail an emissions test. However, it is recommended to address all diagnostic trouble codes before undergoing an emissions test.

10. How can I prevent OBDII code B0785 from recurring in my 2014 GMC Sierra?

To prevent the recurrence of code B0785 in your 2014 GMC Sierra, it is essential to ensure regular maintenance checks, promptly address any indicator or control module issues, and use quality components when replacing parts related to the two-wheel drive high range indicator circuit.

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