B0780 BUICK - Four Wheel Drive Low Range Indicator Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B0780 BUICK Possible Causes

  • 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

First diagnose B0780 BUICK code

    Check 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 terminals.

Cost of diagnosing the B0780 BUICK code

    Labor: 1.0

    The cost of diagnosing the B0780 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B0780 BUICK Possible Symptoms

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

B0780 BUICK Meaning

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.
OBDII Code B0780 BUICK - Four Wheel Drive Low Range Indicator Circuit - Engine-Codes.com

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