OBD Guide

B0780

Four Wheel Drive Low Range Indicator Circuit

B0780 is an OBD-II diagnostic trouble code meaning: Four Wheel Drive Low Range Indicator Circuit. Common causes: open or short circuit in wiring harness, sensor or indicator malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Low range indicator does not turn on when activated
  • False positive indicator
  • Problems with downshifting

Causes

  • Open or short circuit in wiring harness
  • Sensor or indicator malfunction
  • Problems with the four-wheel drive control module
  • Mechanical faults in the range switching system

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the operation of the sensor and indicator
  3. Diagnose the four-wheel drive control module
  4. Check the mechanical part of the range switching system

Related codes

Error B0780 by Vehicle Brand

FAQ

What does the B0780 code mean?

B0780 is an OBD-II diagnostic trouble code that indicates: Four Wheel Drive Low Range Indicator Circuit

What causes a B0780 error code?

The most common causes of B0780 include: Open or short circuit in wiring harness; Sensor or indicator malfunction; Problems with the four-wheel drive control module; Mechanical faults in the range switching system.

How do I fix a B0780 diagnostic trouble code?

To fix B0780: Check the integrity of the wiring harness. Check the operation of the sensor and indicator. Diagnose the four-wheel drive control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0780?

Limited driving only, diagnose soon

How much does it cost to fix B0780?

The estimated repair cost for B0780 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat