TM 5-2410-241-23-1
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ELECTRICAL SYSTEM CONTINUED
Electronic Control Module
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The Powertrain ECM is located under the left console.
The ECM makes decisions that are based on input and memory information. After the ECM receives the input
information, it sends a corresponding response to the outputs. The inputs and outputs of the ECM are connected to
the machine harness by two 70 contact connectors (J1 and J2). The ECM also sends the information to the MSD
using Cat MIL ET.
N OT E
The ECM is not serviceable. If the ECM fails or is damaged, it must be replaced. The
failure rate for the ECM is very low. If the ECM is suspected to be faulty when there is a
problem with an electrical circuit on the machine, replace the ECM only after all of the
other possible causes of the problem have been investigated.
Figure 16. ECM Connectors and Contacts.
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