TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
ELECTRO-HYDRAULIC SYSTEM - CONTINUED
6.
CAT Data Link.
a.
CAT Data Link is an input/output of implement ECM which communicates with other ECMs on machine or with a
service tool. This allows implement ECM to input and output information. CAT Data Link consists of internal
ECM circuits, related harness wiring, and diagnostic connector. CAT Data Link connects to J1-10 and J1-20 of
ECM.
b.
Service code information and real-time data can be shown on ET.
c.
All ECMs that use CAT Data Link have an MID. Implement ECM is MID 082.
d.
Implement ECM Inputs. Implement ECM receives information from these sources via CAT Data Link.
(1)
Engine ECM.
Engine speed
Engine warning status
(2)
Transmission ECM.
Engine start switch position
Parking brake status
Transmission gear
Torque converter output torque
Torque converter output speed
Ground speed
Ride control status
e.
Implement ECM Outputs. Implement ECM sends information to these sources via CAT Data Link.
(1)
Engine ECM. Implement operation status.
(2)
Transmission ECM.
Dump solenoid current
Lift cylinder head end pressure
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