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:
Powertrain control module (PCM)
DESCRIPTION
The Powertrain Control Module (PCM) is located
in the engine compartment (Fig. 1). The PCM is
referred to as JTEC.
OPERATION
The PCM operates the fuel system. The PCM is a
pre-programmed, triple microprocessor digital computer.
It regulates ignition timing, air-fuel ratio,
emis ...