I-52
ENGINE <NON-TURBO>
-
Control System
DATA TRANSMISSION SYSTEM
N71AKSOAA
The power train control module (PCM) and transaxle
control module (TCM) transfer control data to and
munication line and displays the data on the display.
from each other via a data communication system.
(Various types of data are also received by the scan
The scan tool receives various
tvpes
of data from
tool from the power train control module through
a line different from this data communication line.)
the transaxle control module through the
data
com-
Power train control module
Transaxle control module
Bus+
T
<
AFU0084
The power train control module and transaxle control
module communicate with each other by alternately
sending the data in their respective modules to the
data bus.
In other words, the power train control module sends
all its data to the data bus, and the transaxle control
module receives only those data items it needs from
the bus. Then the transaxle control module sends
all its data to the data bus. The power train control
module does not require any specific data from the
data bus.
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