Transmission Control
Module (TCM)
A
B
C
E
D
VEHICLE
TCM
Location
B
C
E
E
A
A
A
D
Chrysler Crossfire; TCM mounted under the
passenger side floor panel in position "E"
Chrysler Sprinter; TCM mounted under the
drivers seat in position "D"
Mercedes 129, 170, 202 and 208 Chasis;
TCM mounted under the passenger side floor
panel in position "E"
Mercedes 140, 210 and 220 Chasis;
TCM mounted in Electrical Box in engine
compartment in position "C"
Mercedes 163 Chasis (M Series);
TCM mounted on the floor, center of the
console in position "B"
Dodge Magnum; TCM mounted below the
steering column in position "A"
Chrysler 300C; TCM mounted below the
steering column in position "A"
Grand Cherokee; TCM mounted below the
steering column in position "A"
TRANSMISSION CONTROL MODULE LOCATIONS
21
Copyright © 2009 ATSG
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
Figure 21
ELECTRICAL AND RESISTANCE CHECKS
Electrical and resistance checks can be easily as the
TCM is located in one of five areas, as shown in
Figure 21. The only one that is troubling for the
technician is the one in the Sprinter, which is
underneath the drivers seat. The TCM is small in size
when compared to other control modules on board the
vehicle. It measures approximately 5-1/4" X 4-1/4"
X 3/4". There are two connectors which plug into the
TCM and are identified in Figure 22. The face of the
connectors have the terminal numbers embossed in
them for circuit identification and also shown in
Figure 22.
With the TCM connectors disconnected, many of the
internal components can be checked for proper
resistance readings. If a specific wire is a concern or
needs to be inspected, continuity checks can also be
easily accomplished between the TCM and the
vehicle harness at the 13-way connector.
We have provided you with a chart in Figure 23 with
the resistance specifications for the solenoids.
Electronic Components
Continued on Page 24
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