Test F: Electronic Shift-On-The-Fly (ESOF) Functional Test
Pinpoint Test F: Electronic Shift-On-The-Fly (ESOF) Functional TestRefer to Vehicle/Diagrams, Four-Wheel Drive System for schematic and connector information.
Normal Operation
When operating in four wheel drive (4WD), the transfer case and both of the integrated wheel ends (IWEs) are locked. When in 4x4 LOW, the transfer case low range gear set provides an additional 2.64 gear reduction. When operating in 2WD, the transfer case and both IWEs are unlocked.
This pinpoint test is intended to diagnose the following:
^ Transfer case and related components
^ Wheel/tire assemblies