Jeep Cherokee (XJ): Description and operation
Jeep Cherokee (XJ) 1984 - 2001 Service Manual > Transmission and transfer case > AW-4 automatic transmission > Description and operation
- AW-4 automatic transmission
- Fluid. Torque converter. Oil pump
- Transmission valve body components
- Pistons
- Transmission ranges and shift lever positions. Transmission control module (TCM). Hydraulic system
- Transmission cooler. Brake transmission shift interlock mechanism
DESCRIPTION
The AW-4 is a 4-speed, electronically controlled
automatic transmission (Fig. 1).
The running gear consists of an oil pump, planetary
gear sets, clutch and brake units, hydraulic
ac ...
Other materials:
Modes of operation
OPERATION
As input signals to the Powertrain Control Module
(PCM) change, the PCM adjusts its response to the
output devices. For example, the PCM must calculate
different injector pulse width and ignition timing for
idle than it does for wide open throttle (WOT).
The PCM will operate in two ...