COLLAR 1990756 - Caterpillar

CAT data link is an input/output of the implement ECM. The data link communicates with other electronic control modules (ECM) on the machine or with a service tool. The data link is bidirectional. This allows the implement ECM to input information and this allows the ECM to output information. The data link is not a visible component. The data link consists of the following parts: internal ECM circuits, the related harness wiring and the service tool connector. The CAT data link connects to J1-3 and J1-9 of the ECM.The implement ECM receives information from the CAT data link. The information that is received is listed below.
Engine speed from the ECM
Information on the position of the key start switch from the ECM
Harness code, calibration, and status information from the Caterpillar Monitoring System
Hydraulic oil temperature
Parking brake status
Transmission direction
Transmission speed
Torque converter output torque
Torque converter output speed
Ground speedThe ECM sends information through the CAT data link. The information that is sent is listed below.
Calibration information is displayed on the Caterpillar Monitoring System.
Diagnostic Service Codes are displayed on the Caterpillar Monitoring System.
Current of the dump solenoid is sent to the transmission ECM.Service code information and real time data can be shown on the Caterpillar Electronic Technician.All electronic control modules that use the CAT data link have a module identifier (MID). The module identifier (MID) is 082 for the implement ECM.