AutoCodes – Chevrolet – B0780 2017 Chevrolet Silverado

B0780 2017 Chevrolet Silverado Code - Four Wheel Drive Low Range Indicator Circuit

Quick Answer

The Four-Wheel Drive (4WD) Low Range (LO) indicator circuit consists of a Light Emitting Diode (LED) feed circuit, a LED, and a 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
B0780 2017 Chevrolet Silverado indicates Four Wheel Drive Low 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 237
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 18, 2024
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B0780 2017 Chevrolet Silverado Description

The Four-Wheel Drive (4WD) Low Range (LO) indicator circuit consists of a Light Emitting Diode (LED) feed circuit, a LED, and a LED control circuit. The indicator dimming control circuit is the LED feed circuit and continuously supplies B+ to the 2WD HI, 4WD Auto, 4WD HI, and 4WD LO LEDs. When the 4WD LO mode has been selected by the driver, the Transfer Case Shift Control Module (TCCM) provides a ground through the 4WD LO indicator control circuit illuminating the LED.
The TCCM tests the 4WD LO indicator circuit for unexpected voltage by monitoring the B+ supplied by the Body Control Module (BCM) on the indicator dimming control circuit by grounding the 4WD LO indicator control circuit for 2 seconds during the Bulb Test at key ON.
OBDII Code B0780 2017 Chevrolet Silverado - Four Wheel Drive Low Range Indicator Circuit - AutoCodes.com
B0780 2017 Chevrolet Silverado Code - Four Wheel Drive Low Range Indicator Circuit

What are the Possible Causes of the DTC B0780 2017 Chevrolet Silverado?

  • 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 B0780 2017 Chevrolet Silverado?

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 B0780 2017 Chevrolet Silverado 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 B0780 2017 Chevrolet Silverado code?

Need more information on how to fix the B0780 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0780 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 B0780 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B0780 on a 2017 Chevrolet Silverado?

The common symptoms of code B0780 on a 2017 Chevrolet Silverado may include the Four Wheel Drive Low Range indicator light staying illuminated or not functioning properly.

2. What does the OBDII code B0780 indicate on a 2017 Chevrolet Silverado?

OBDII code B0780 on a 2017 Chevrolet Silverado indicates a malfunction in the Four Wheel Drive Low Range Indicator Circuit.

3. What are the possible causes of OBDII code B0780 on a 2017 Chevrolet Silverado?

Possible causes of code B0780 on a 2017 Chevrolet Silverado include a faulty indicator switch, wiring issues, or a malfunctioning control module.

4. How can I diagnose OBDII code B0780 on my 2017 Chevrolet Silverado?

Diagnosing code B0780 on a 2017 Chevrolet Silverado involves using a scan tool to check for the specific error code, inspecting the indicator switch and its wiring, and testing the control module for proper functionality.

5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code B0780?

It is generally safe to drive your 2017 Chevrolet Silverado with code B0780, but it is recommended to have the issue diagnosed and repaired to ensure the proper functioning of the Four Wheel Drive Low Range indicator.

6. How can I repair OBDII code B0780 on my 2017 Chevrolet Silverado?

Repairing code B0780 on a 2017 Chevrolet Silverado may involve replacing a faulty indicator switch, repairing damaged wiring, or addressing any issues with the control module as needed.

7. Is it possible to reset OBDII code B0780 on a 2017 Chevrolet Silverado without repairs?

While you can clear the error code using a scan tool, it is important to address the underlying issue causing code B0780 on your 2017 Chevrolet Silverado to prevent it from reoccurring.

8. Can extreme weather conditions trigger OBDII code B0780 on a 2017 Chevrolet Silverado?

Extreme weather conditions can potentially affect the Four Wheel Drive Low Range indicator circuit and contribute to the triggering of code B0780 on a 2017 Chevrolet Silverado.

9. How much does it typically cost to repair OBDII code B0780 on a 2017 Chevrolet Silverado?

The cost to repair code B0780 on a 2017 Chevrolet Silverado can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

10. Should I seek professional help to fix OBDII code B0780 on my 2017 Chevrolet Silverado?

If you are not familiar with automotive diagnostics and repairs, it is advisable to seek professional help to accurately diagnose and fix code B0780 on your 2017 Chevrolet Silverado.

Discuss the causes and fixes for B0780 2017 Chevrolet Silverado OBDII Code

Code B0780 2017 Chevrolet Silverado comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play