B0785 2014 GMC Sierra Code - Two Wheel Drive High Range Indicator Circuit
Quick Answer
The Two Wheel Drive (2WD) High Range (HI) 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
- B0785 2014 GMC Sierra indicates Two Wheel Drive High Range 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 B0785 2014 GMC Sierra Description
The TCCM tests the 2WD HI indicator circuit for unexpected voltage by monitoring the B+ supplied by the BCM on the indicator dimming control circuit by grounding the 2WD HI indicator control circuit for 2 seconds during the Bulb Test at key ON.
What are the Possible Causes of the DTC B0785 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 B0785 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 B0785 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.
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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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