Engine-Codes - Buick - B0780 Buick

B0780 Buick Code - Four Wheel Drive Low Range Indicator Circuit

- Code Popularity: 556 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B0780 Buick?

  • 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

|How to Fix the B0780 Buick Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the Cost to Diagnose the Code B0780 Buick?

Labor: 1.0

The cost to diagnose the B0780 Buick code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code B0780 Buick Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B0780 Buick Code Mean?

The Four Wheel Drive Low Range (4LO) indicator circuit consists of an LED dimming supply circuit and a 4LO indicator control circuit. When the 4LO mode is selected, current is supplied to the 4LO indicator by the LED dimming supply circuit, traveling through the 4LO indicator LEDs, at which time the transfer case shift control module supplies the ground through the 4LO indicator control circuit.

Four Wheel Drive Low Range Indicator Circuit

|Need more Information on the B0780 Buick Code?

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|Need Help with the B0780 Buick Code?

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