DTC B3143 Hummer

4L N Switch Circuit Short

4L N Switch Circuit Short

Description

Though transfer shift actuator motor position switch is 4L-lock position, the OFF signal is not input from the 4L N switch.

Cause and Solution

4L N switch4L N switch circuit4WD control module

Video Guide

Duration: PT3M42S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: B3143
  • Brand: Hummer
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