NOZZLE AS-UNIT INJECTOR 7C0344 - Caterpillar

Certain programmable parameters must be entered in order for the electronic control system to operate properly. Other programmable parameters are adjusted according to the customer's preferences for the installation.Caterpillar Electronic Service Tools are designed to help the service technician perform the following functions:
Obtain data.
Diagnose problems.
Read parameters.
Program parameters.
Calibrate sensors.The tools that are listed in Table 1 are required in order to enable a service technician to perform the procedures.Connecting the Caterpillar Electronic Technician (Cat ET) to the Electronic Control Module (ECM)
Table 1
Tools Needed Qty
Personal Computer (PC) 1
Single user license for Cat ET
Use the most recent version of this software.
"JERD2124" 1
Software
Data subscription for all engines
"JERD2129" 1
171-4400 Communication Adapter Gp (1) 1
275-5120 Communication Adapter Gp(2)
7X-1414 Adapter Cable As 1
237-7547 Adapter Cable As(3) 1
225-5985 Parallel Port Cable (COMMUNICATION ADAPTER) 1
(1) This item includes the 171-4401 Communication Adapter As.
(2) This item includes the 275-5121 Communication Adapter As. The 7X-1700 Communication Adapter Gp may also be used.
(3) This cable connects to the USB port on computers that are not equipped with a serial port.For more information regarding the use of Cat ET and the PC requirements for Cat ET, refer to the documentation that accompanies your Cat ET software.The engine's power supply provides the communication adapter with 24 VDC. Use the following procedure to connect Cat ET and the communication adapter to the engine.
Illustration 1 g01299558
Connecting Cat ET to the service tool connector
The service tool connector is on the left rear corner of the engine.
(1) Service tool connector
(2) Personal Computer (PC)
(3) 237-7547 Adapter Cable As
(4) 196-0055 Adapter Cable As
(5) 225-5985 Parallel Port Cable (COMMUNICATION ADAPTER)
(6) 171-4401 Communication Adapter As
(6) 275-5121 Communication Adapter As
(7) 207-6845 Adapter Cable AsRefer to Illustration 1. The location of the service tool connector depends on the configuration of the control system.The engine's power supply supplies the communication adapter with 24 VDC. Use the following procedure to connect Cat ET and the communication adapter to the engine.
Set the engine control to the OFF/RESET mode.
Connect communications adapter (6) to a communications port on the PC by using one of the following methods:
Connect cable (5) between the "COMPUTER" end of communications adapter (6) and the parallel port of PC (2). Be sure to configure Cat ET for the parallel port. This configuration provides the fastest connection.
Connect cable (4) between the "COMPUTER" end of communication adapter (6) and the serial port of PC (2).
Connect cables (3) and (4) between the "COMPUTER" end of communication adapter (6) and the USB port of PC (2).
Connect cable (7) to communication adapter (6).
Connect cable (7) to the service tool connector.
Verify that the "POWER" indicator on the communication adapter is illuminated.
Set the engine control to the STOP mode. Establish communication between Cat ET and an ECM. If Cat ET and the communication adapter do not communicate with the ECM, refer to Troubleshooting, "Electronic Service Tool Does Not Communicate".If Cat ET displays "Duplicate Type on data link. Unable to Service", check the harness code for the electronic control modules.The harness inside the terminal box has