Caterpillar 3406E — Connecting Cat ET and the Communication Adapter II
Installation · Cat ET / Communication Adapter II
For the Caterpillar 3406E, from the Caterpillar service manual.
Applies to: Caterpillar 3406E
Before you start
- Turn the keyswitch to the OFF/RESET position. If the keyswitch is not placed in the OFF/RESET position, the engine may start.
Procedure
- Turn the keyswitch to the OFF/RESET position. If not, the engine may start.
- Connect cable (2) between the COMPUTER end of communication adapter (3) and the RS232 serial port of PC (1).
- Connect cable (4) between the DATA LINK end of communication adapter (3) and the service tool connector.
- Turn the keyswitch to the ON position.
- If Cat ET and the communication adapter do not communicate with the ECM, refer to Electronic Service Tool Will Not Communicate With ECM.
Tools required
- 171-4400 Communication Adapter II Gp Amazon
- 196-0055 Adapter Cable As Amazon
- 171-4401 Communication Adapter II Amazon
- 207-6845 Adapter Cable As Amazon
- 7X-1700 Communication Adapter Gp (may also be used) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Caterpillar 3406E →
Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.