B0780 Chevrolet 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 Chevrolet 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.
Code B0780 Chevrolet Description
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.
What are the Possible Causes of the DTC B0780 Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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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Information for Specific Chevrolet Models
- B0780 2014 Chevrolet Silverado — Four Wheel Drive Low Range Indicator Circuit
- B0780 2015 Chevrolet Silverado — Four Wheel Drive Low Range Indicator Circuit
- B0780 2016 Chevrolet Silverado — Four Wheel Drive Low Range Indicator Circuit
- B0780 2017 Chevrolet Silverado — Four Wheel Drive Low Range Indicator Circuit
- B0780 2018 Chevrolet Silverado — Four Wheel Drive Low Range Indicator Circuit
Frequently Asked Questions about B0780 Chevrolet Code
1. What are the common symptoms of OBDII code B0780 in a Chevrolet related to the Four Wheel Drive Low Range Indicator Circuit?
- The common symptoms include the Four Wheel Drive Low Range indicator staying illuminated or flashing on the dashboard, even when the vehicle is not in low range mode.
2. What are some possible causes of OBDII code B0780 in a Chevrolet?
- Possible causes of this code may include a faulty low range switch, a wiring issue in the indicator circuit, or a malfunctioning control module.
3. How can I diagnose the root cause of OBDII code B0780 in my Chevrolet?
- To diagnose this issue, you can start by inspecting the wiring and connectors related to the Four Wheel Drive Low Range indicator circuit. Using a multimeter to test for continuity and voltage can help pinpoint the problem.
4. Is it safe to continue driving my Chevrolet with OBDII code B0780 triggered?
- It is generally safe to continue driving the vehicle with this code, as it primarily affects the indicator light for the Four Wheel Drive Low Range and does not impact the vehicle's drivability.
5. Can I repair OBDII code B0780 in my Chevrolet by simply resetting the fault code?
- Resetting the fault code may temporarily turn off the warning light, but it will not fix the underlying issue causing OBDII code B0780. Proper diagnosis and repair are necessary to address the problem.
6. How much does it typically cost to repair OBDII code B0780 in a Chevrolet?
- The cost of repairing this code can vary depending on the root cause of the issue. Simple fixes like replacing a faulty switch may be relatively inexpensive, while more complex wiring or module repairs can be costlier.
7. Are there any DIY repair tips for addressing OBDII code B0780 in a Chevrolet?
- DIY enthusiasts can attempt to inspect the wiring connections and switch related to the Four Wheel Drive Low Range indicator circuit. However, if the issue is not readily apparent, it may be best to consult a professional mechanic.
8. Can extreme weather conditions affect the triggering of OBDII code B0780 in a Chevrolet?
- Extreme weather conditions can potentially impact the indicator circuit and trigger the code. Moisture or temperature fluctuations may cause the indicator to malfunction, leading to the code being set.
9. Will OBDII code B0780 cause any long-term damage to my Chevrolet if left unresolved?
- Leaving OBDII code B0780 unresolved will not cause any significant long-term damage to the vehicle. However, it is recommended to address the issue to ensure proper functionality of the Four Wheel Drive Low Range indicator.
10. How long does it typically take to repair OBDII code B0780 in a Chevrolet?
- The repair time for this code can vary depending on the complexity of the issue and the availability of parts. Simple fixes may take a few hours, while more involved repairs could require a day or more.
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