CORE AS-RADIATOR 7E3330 - Caterpillar

The following service tools should be used to aid in troubleshooting the electrical system.
Table 1
Service Tools
Part Number Part
Caterpillar Electronic Technician (Cat-ET)
6V-7070 or 9U-7330 Digital Multimeter
8T-3224 Needle Tip Group
7X-1710 Multimeter Probe Group
8T-8726 Adapter Cable Assembly
9U-7246 Connector Repair Kit DT
4C-3406 Connector Repair Kit
4C-8195 Control Service Tool (Switch Box)
157-4829 Cable Adapter
276-7273 Sensor Test Box (1)
(1) Instrument used to test Cylinder Position sensors.
Illustration 1 g01309200
Connections for the Communication Adapter II and the Caterpillar Electronic Technician (Cat-ET)
The components that are needed to use the Communication Adapter II and the Caterpillar Electronic Technician (Cat-ET) service tool are:
(1) Cable
(2) 317-7484 Communication Adapter Gp
(3) Service diagnostic cable.
(4) Current version of Cat-ET program software and an IBM-COMPATIBLE personal computer Reference: See Tool Operating Manual, NEHS1032, "317-7484 Communications Adapter 3".Note: Cat ET is a software program that can be used on an IBM compatible personal computer. In order to use the Cat-ET service tool, 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 service tool.The Cat-ET service tool is not required in order to determine the diagnostic codes. The Cat-ET service tool is also not required in order to clear the diagnostic codes. However, the process of determining the diagnostic codes is easier and faster by using the Cat-ET service tool. The Cat-ET service tool can also display information on the history of a diagnostic code and the parameter status of diagnostic codes. These features allow the Cat-ET service tool to be useful in troubleshooting.The Cat-ET service tool is used to communicate to the electronic control module over the data link by connecting to the diagnostic connector. For more information and the locations of the connectors, see Troubleshooting, "Electrical Components and Connector Locations" and the Electrical System Schematic in your vehicle Service Manual.For instructions on servicing Sure Seal connectors, see Special Instruction, SMHS7531. For instructions on servicing Deutsch connectors, see Special Instruction, SEHS9615.Use a 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 three pins. The adapter cable is used for measurements in the sensor circuits.Except for harness tests, the use of certain test equipment is not recommended for use on modern Caterpillar electrical circuits. Such testers include the following examples: the 8T-0500 Continuity Tester and 5P-7277 Voltage Tester.Note: A procedure has been developed to test "In Cylinder" Position Sensors. Reference Special Instruction REHS7338, "Procedure to Test the Position Sensor of a Hydraulic Cylinder".