TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
POWERTRAIN - CONTINUED
d.
Input/Output. CAT Data Link is used to communicate with other machine ECMs. CAT Data Link is bidirectional,
allowing powertrain ECM to receive and send information. CAT Data Link allows information to be shared with
other electronic controls. A Module Identifier (MID) is assigned to every electronic control using CAT Data Link.
Powertrain ECM's MID is 081.
Table 3. J1 Connector (Powertrain ECM).
No.
Function
Type
1
Engine Start Switch ON
Switch Input
2
Transmission Output Speed Sensor (+)
Frequency Input
3
Transmission Output Speed Sensor (-)
Frequency Input
4
Transmission Output Speed Sensor (+)
Frequency Input
5
Transmission Output Speed Sensor (-)
Frequency Input
6
-
Unused(1)
10
CAT Data Link (+)
Input/Output
12
Backup Alarm
Solenoid Output
13
Battery 1 (-)
Ground
15
Torque Converter Output Speed Sensor (+)
Frequency Input
16
Torque Converter Output Speed Sensor (-)
Frequency Input
20
CAT Data Link (-)
Input/Output
22
Transmission Oil Temperature Sensor
Output
23
Battery 2 (-)
Ground
27
ECM Location Code 2
Ground
29
Torque Converter Temperature Sensor
30
Front Axle Oil Temperature Sensor
31
Battery 1 (+)
Power
32
ECM Location Code Enable
Ground
33
Autoshift Control Switch (2-4)
Switch Input
34
Autoshift Control Switch (MANUAL)
Switch Input
35
Autoshift Control Switch (1-4)
Switch Input
39
Battery 2 (+)
Power
40
First Gear Switch
Switch Input
41
Second Gear Switch
Switch Input
0003 00-32
