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POWER TRAIN
-
Automatic Transaxle
Vehicle Speed Signal
The vehicle speed signal is sent as a direct input
from the TCM to the PCM. This system is called
electronic pinion. The output speed sensor signal
is sent to the TCM and used as the vehicle speed
signal. The
F4ACl
does not use a vehicle speed
sensor as in past transaxles. The TCM converts
the output speed sensor signal to an 8000
pulse-per-
Scan Tool (MUT-II) Interface
The TCM and other components have the ability
to interface (“talk” to each other) over the CCD bus.
The scan tool (MUT-II) connects to a data link con-
nector located in the passenger compartment. This
mile signal. The signal is then sent directly to the
PCM.
Using the transaxle output speed sensor for the
vehicle speed signal has resulted in reduced
manufacturing process time, cost savings, increased
reliability, and increased speedometer accuracy.
allows communication with the TCM on the CCD
bus. Refer to the
F4ACI
Transaxle Powertrain Diag-
nostic Procedures manual for the data link connect
location.
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