Chrysler’s 41TE transmission
has been in use since 1989, the
42LE since 1993, the 45RFE
since 1999 and the 42RLE since 2003.
With each of these transmissions
having similar electronics, they also
have similar diagnostic codes and
testing consistencies.
This makes life a bit easier for the
diagnostician, as he can count on the
fact that no matter what vehicle
comes through the door, terminal 56
at the transmission-control module
(TCM) is the “hot-at-all-times” circuit;
terminal 11 is the ignition power
supply; terminal 15 is the EATX relay
control; terminals 16 and 17 are
EATX relay-output circuits; terminals
13, 14 and 54 are the input-/output-
speed-sensor circuits; and so on.
And even within the past few
years with the TCM and the enginecontrol
module having been incorporated
into a powertrain-control
module (PCM), there are still similar
consistencies here. C1-connector terminal
29 is hot at all times, and terminal
12 is the ignition power
supply. In C4-connector terminal 18
is the EATX relay control, terminals
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