345B, 345B Series II and W345B Series II Excavators Engine and Pump Control Using Caterpillar Electronic Technician Caterpillar


Using Caterpillar Electronic Technician
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1.1. ET Status Groups
2.2. Screen 1
3.2. Screen 2
4.2. Screen 3
5.2. Screen 4
6.2. Screen 5
7.2. Screen 6
8.2. Screen 7



Illustration 1g00280782

Connections for the Electronic Technician (ET)

The components that are needed to use the ET to determine diagnostic codes are shown below.

(1) IBM-compatible personal computer with an installed current version of AVSpare Electronic Technician software

(2) 139-4166 Data Link Cable or 7X-1570 Data Link Cable

(3) 7X-1425 Cable and 4C-6805 Adapter

(4) Special Publication, JEBD3003, Special Publication, JERD2124, Special Publication, JERD2129 AVSpare Electronic Technician software

(5) 7X-1700 Communication Adapter Tool with Special Publication, NEXG4323, "Communications Adapter Software"

Note: AVSpare Electronic Technician (ET) is a software program that can be used on an IBM compatible personal computer.

Reference: In order to use the AVSpare Electronic Technician (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 ET.

The ET service tool is not necessary to determine the diagnostic codes. The ET service tool is not necessary to clear the diagnostic codes. The ET service tool makes the tasks easier and faster. The ET service tool can display information on the history of the diagnostic codes and the status of other parameters. These features make the ET service tool useful for troubleshooting.




Illustration 2g00669402

(1) Service Connector

The ET service tool connects to the machine service connector in order to communicate with the electronic control modules over the data link. The service connector is located above the disconnect switch. For more information and the locations of the connectors, see Testing and Adjusting, "Electrical Components and Connector Locations" and the Electrical System Schematic in your machine's Service Manual.

Start the ET after the ET has been connected to the machine. The ET will initiate communications with the electronic control modules on the machine. After communication has been established, the ET will list the electronic control modules on the machine. Use the ET in order to determine the diagnostic codes and choose the menu item "Excavator 345B". See the test procedure for the corresponding diagnostic code.

ET Status Groups

The ET service tool uses the status groups in order to display the information on the parameters. The ET screen may vary depending on the exact model of your machine.

Screen 1

  • "Throttle Cable Position Switch"

  • "Coolant Level"

  • "Engine Coolant Temperature"

  • "Engine Oil Level"

  • "Oil Pressure Status"

  • "Engine Speed"

  • "Fuel Gauge"

Screen 2

  • "Air Filter Restriction Status"

  • "Alternator Status"

  • "Battery Voltage"

  • "Low Idle Switch"

  • "System Voltage Status"

Screen 3

  • "Hydraulic Oil Level"

  • "Hydraulic Oil Temperature"

  • "Return Hydraulic Oil Filter"

  • "Implement Pressure Switch"

  • "Power Shift Pressure"

Screen 4

  • "Boom Raise Control"

  • "Travel Solenoid Status"

  • "Travel Alarm Command"

  • "Travel Speed Command"

  • "Boom Priority Solenoid"

  • "Travel Pilot Pressure Switch"

Screen 5

  • "Governor Actuator High Speed Correction"

  • "Governor Actuator Middle Speed Correction"

  • "Governor Actuator Low Speed Correction"

  • "Governor Actuator Feed Back"

  • "Shuttle Valve"

Screen 6

  • "VHP Mode"

  • "Machine Work Mode"

  • "Trenching Solenoid"

  • "Fine Swing Switch"

Screen 7

  • "Hammer Pedal Switch"

  • "Attachment Pump Power Limit"

  • "Attachment Pedal Position"

  • "Attachment Pump Status"

Information System:

345B, 345B Series II and W345B Series II Excavators Engine and Pump Control Parameter Status Checks
345B, 345B Series II and W345B Series II Excavators Engine and Pump Control Using Service Mode
345B, 345B Series II and W345B Series II Excavators Engine and Pump Control General Information
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