Connector Contact Description
For wire numbers and information on the connectors, refer to the electrical system schematic for your machine model.
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| Illustration 1 | g01330564 |
Rear view of the Messenger Display | |
Table 1 refers to the pin numbers and the signal for each pin on the Messenger connector.
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| Messenger 8 Pin Connector | |
| Pin Number | Function |
| 1 | + Battery |
| 2 | - Battery |
| 3 | Keyswitch |
| 4 | Dimmer-PWM input |
| 5 | CDL + |
| 6 | CDL - |
| 7 | CAN/J1939 High |
| 8 | CAN/J1939 Low |
Caterpillar Information System:
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