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:
Power grounds. Power steering pressure switch-
pcm input. Sensor return-pcm input
Power grounds
OPERATION
The Powertrain Control Module (PCM) has 2 main
grounds. Both of these grounds are referred to as
power grounds. All of the high-current, noisy, electrical
devices are connected to these grounds as well as
all of the sensor returns. The sensor return comes
into the senso ...