| Service Tools | |
| Part Number | Part |
| Caterpillar Electronic Technician (ET) | |
| 6V-7070 9U-7330 |
Digital Multimeter |
| 9U-7246 | Connector Repair Kit (Deutsch DT Type) |
 | |
| Illustration 1 | g00774942 |
Connections for the Communication Adapter II and the Cat ET The components that are needed in order to use the Communication Adapter II and the Cat ET in order to determine diagnostic codes are listed: (6) Cable (7) 171-4400 Communication Adapter II (8) Service diagnostic cable. (9) Current version of Cat ET software and an IBM-COMPATIBLE personal computer | |
ReferenceSee Special Publication, NEHS0758, "Communications Adapter II User's Manual Contains Software".
Note: Cat ET is a software program that can be used on an IBM compatible personal computer.
In order to use the Cat ET, order the following materials: Special Publication, JERD2124, "ET Single Use Program License", Special Publication, JEHP1026, "Information and Requirements Sheet", 7X-1425 Data Link Cable and the Data Subscription and Special Publication, JERD2142, "Data Subscription". The Special Publication, JEHP1026, "Information and Requirements Sheet" lists the required hardware and the features of the Cat ET.
The Cat ET is used to communicate to the systems components over the data link by connecting to the machine service connector.
Use the digital multimeter for measuring resistance or for measuring voltage. For instructions about the use of the 6V-7070 Digital Multimeter, see Special Instruction, SEHS7734. The 7X-1710 Multimeter Probe measures the voltage at the connectors without disconnecting the connectors. The probe cables are pushed into the back of the connector along the wire. The 8T-8726 Adapter Cable has a breakout with 3 pins. The adapter cable is used for measurements in the sensor circuits.
Note: Except for harness tests, using continuity testers such as the 8T-0500 Continuity Tester or voltage testers such as the 5P-7277 Voltage Tester is not recommended for today's Caterpillar electrical circuits.