Four Wheel Drive (4WD) Systems

Four Wheel Drive (4WD) Systems

There are 3 types of Four-Wheel Drive (4WD) operating systems:

- All-Wheel Drive (AWD)
- 1-speed torque-on-demand
- 2-speed torque-on-demand

All-Wheel Drive (AWD)

The AWD system utilizes the following components:

- Transfer case
- Differential (internal to the transfer case)

1-Speed Torque-On-Demand

The 1-speed torque-on-demand system utilizes the following components:

- Transfer case
- Electromagnetic clutch (internal to the transfer case)
- 4X4 control module
- Message center, used to select between AUTO and LOCKED modes.

2-Speed Torque-On-Demand

The automatic 4WD system is a 2-speed torque-on-demand design that utilizes the following components:

- Transfer case
- Electromagnetic clutch (internal to the transfer case)
- 4X4 control module
- Mode Select Switch (MSS), used to select between 4X4 AUTO, 4X4 HIGH and 4X4 LOW modes
- Transfer case shift motor
- Encoder assembly (part of the transfer case shift motor)
- Shift motor sense plate (part of the encoder assembly)