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Home >> Cadillac >> 2018 >> Escalade ESV Platinum, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transfer Case - Mp 3023/3024 (NQH)) >> Description And Operation >> Transfer Case Description And Operation >> 4HI Mode Active Power Flow

4HI Mode Active Power Flow

WARNING: This page is about a different variant/trim than selected.
Fig 1: 4HI Mode Active Power Flow Components
GM2236076Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
1 Input Shaft
2 Control Actuator Lever
3 Clutch Pack
4 Drive Chain
5 Rear Output Shaft
6 Actuator Shaft Gear
7 Front Output Shaft
8 Actuator Cam


Fig 1: 4HI Mode Power Flow Components Diagram
GM1817247Courtesy of GENERAL MOTORS COMPANY

During the Auto 4WD mode, the power flow is the same as it is in the 4HI mode. Except, during the Auto 4WD mode, the 2/4 wheel drive actuator assembly (13) rotates the control actuator shaft to the correct torque level positions. Rotating the control actuator shaft to the various positions changes the clutch torque level. When a difference of front wheel speed to rear wheel speed is recognized, the transfer case control module commands for more or less clutch torque.