The Caterpillar Electronic Technician (ET)
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| Illustration 1 | g00777826 |
The Caterpillar Electronic Technician (ET) is a software program that is used to access data. The service technician can use the ET in order to perform maintenance on the machine. Some of the options that are available with the Caterpillar Electronic Technician are listed below:
- View diagnostic codes. See Troubleshooting, "Using the Caterpillar Electronic Technician to Determine Diagnostic Codes".
- Viewing active event codes and logged event codes
- View the status of parameters.
- Clear active diagnostic codes and clear logged diagnostic codes
- Perform calibration of machine systems.
- Program the ECM (Flash). This is done with the "WINflash" program. See Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program".
- Print reports.
The following list contains some of the diagnostic functions and programming functions that are performed by the service tools.
- The failures of the ECM system are displayed.
- The status of most of the inputs and the outputs are displayed.
- The settings for the ECM are displayed.
- Display the status of the input and output parameters in real time.
- Display the clock hour of the internal diagnostic clock.
- The number of occurrences and the clock hour of the first occurrence and the last occurrence is displayed for each logged diagnostic code.
- The definition for each logged diagnostic code and each event is displayed.
- Load new FLASH software.
See Troubleshooting, "Diagnostic Code List" for the list of diagnostic codes for the ECM.
- Active diagnostic codes
- Logged diagnostic codes
Event Codes
Active Event Codes
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| Illustration 2 | g01354348 |
Typical ET Event Code Screen | |
An indicator for logged events is provided. The indicator allows the service technician to keep track of event codes that are intermittent. The data for the logged event will include the following information:
- An event identifier (EID)
- A text description of the problem
- The number of occurrences of the problem
- A time stamp will display the first occurrence of the problem.
- A time stamp will display the last occurrence of the problem.
Status Groups For The Electronic Technician
The Status groups are lists of machine parameters. The status of the parameters are shown in real time.
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| Illustration 3 | g01354357 |
Typical ET Status Screen | |
Displays
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| Illustration 4 | g01259715 |
Instrument Clusters (3) Left Side Instrument Cluster (4) Fuel Level Gauge (5) Service Hour Meter (6) Right Side Instrument Cluster (Cab Display) (7) Coolant Temperature Gauge (8) Hydraulic Oil Temperature Gauge (9) Alert Indicators (10) Digital Display Window (11) Scroll Up Button (12) Scroll Down Button (13) Select Function Button | |
The IC monitoring system displays are located on the left and the right side panels.
Left Side Instrument Cluster (standard)
Item (3) is the Instrument Cluster that is located in the left side panel. This Instrument Cluster contains the following:
(4) This gauge displays the fuel level.
(5) This digital window displays the service hour meter.
(9) These 16 indicators alert the operator to system problems and status. The indicators follow:
- Action Lamp
- Hydraulic Oil Temperature
- Hydraulic Filter Bypass
- Engine Oil Pressure
- Engine Coolant Temperature
- Air Restriction
- Seat Belt
- Parking Brake
- Alternator/Battery
- Machine Security System
- Implement Lockout
- Interlock Override
- Two Speed
- Creep Control
- Continuous Flow
- Glow Plug
- Ride Control
- High Flow
- Pattern Control Changer
See this System Operation, "Output Components" for details.
Right Side Instrument Cluster (optional)
Item (6) is the Instrument Cluster that is located in the right side panel. This Instrument Cluster is referred to in Cat Electronic Technician (ET) as the Cab Display. This Instrument Cluster contains the following:
(7) This gauge displays the temperature of the engine coolant.
(8) This gauge displays the temperature of the hydraulic oil that is in the hydraulic tank.
(10) This Digital Data window displays the following:
- Job Clock
- Diagnostics (CID-FMI)
- Machine Parameters
- Component Status
- Units
- Engine RPM
- System Voltage
- Creep Mode Digital Data Selection
Momentary push buttons (11), (12) and (13) allow the operator to navigate through the information that is displayed on the Digital Data window (10) .
(11) This is the Scroll Up button. This button permits the service technician to scroll through the data that is displayed.
(12) This is the Scroll Down button. This button permits the service technician to scroll through the data that is displayed.
(13) This is the Function Select button. Pressing this button for three seconds simultaneously with a Scroll "Up" button permits the selection of an operator mode or a service mode.