3AC-63727-1 Tohatsu SPRING

Required Service Tools
The tools that are listed in Table 1 are required in order to enable a service technician to perform the test procedures that are found in this manual.
Table 1
Required Service Tools    
Part Number    Description    
N/A     4 mm Allen Wrench    
146-4080     Digital Multimeter Gp (RS232)    
7X-1710     Multimeter Probes    
7X-6370     Adapter Cable As (3-PIN BREAKOUT)    
7X-1715     Adapter Cable As (40-PIN BREAKOUT)    
1U-5804     Crimp Tool (12−AWG TO 18−AWG)    
175-3700     Connector Repair Kit (DEUTSCH DT)    Two short jumper wires are needed to check the continuity of some wiring harness circuits by shorting two adjacent terminals together in a connector. A long extension wire may also be needed to check the continuity of some wiring harness circuits.Optional Service Tools
Table 2 lists the optional service tools that may be needed during testing or repair.
Table 2
Optional Service Tools    
Part Number    Description    
198-4240
or
1U-5470     Digital Pressure Indicator
Engine Pressure Group    
4C-4075     Crimp Tool (4−AWG TO 10−AWG)    
4C-4911 (1)     Battery Load Tester    
5P-7277     Voltage Tester    
6V-9130 (2)     Temperature Adapter (MULTIMETER)    
8T-5319     Connector Tool Group    
155-5176     AC/DC Current Probe    
9S-9082     Engine Turning Tool    
( 1 ) Refer to Special Instructions, SEHS9249, "Use of 4C-4911 Battery Load Tester for 6, 8, and 12 Volt Lead Acid Batteries" and Special Instructions, SEHS7633, "Battery Test Procedure".
( 2 ) Refer to Special Instructions, SEHS8382, "Use of the 6V-9130 Temperature Adapter Group".Caterpillar Electronic Technician (ET)
Cat ET can display the following information:
Parameters
Event codes
Diagnostic codes
Engine configurationCat ET can be used by the technician to perform the following functions:
Diagnostic tests
Calibrations
Flash programming
Configuration of the Electronic Control Module (ECM)Table 3 lists the software that is required in order to use Cat ET. Always use the latest version of Cat ET that is available.
Table 3
Software Requirements for Cat ET    
Part Number    Description    
JERD2124     Single user license for Cat ET    
JERD2129     Data subscription for all engines and machines    Note: 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.Connecting Cat ET
Connecting with the Communication Adapter II
Table 4 lists the standard hardware that is required in order to connect Cat ET.
Table 4
Standard Hardware for the Use of Cat ET    
Part Number    Description    
N/A     Personal Computer (PC)    
275-5120 (1)     Communication Adapter Gp (CAT ET TO ECM INTERFACE)    
237-7547 (2)     Adapter Cable As    
225-5985 (3)     Parallel Port Cable (COMMUNICATION ADAPTER)    
( 1 ) The 7X-1700 Communication Adapter Gp may also be used.
( 2 ) The 237-7547 Adapter Cable As is used to connect to the Universal Serial Bus (USB) on computers that are not equipped with a RS232 serial port.
( 3 ) The 225-5985 Parallel Port Cable is required to connect to the parallel port.
Illustration 1 g01255306
Connecting the Communication Adapter II (1) Personal Computer (PC) (2) 237-7547 Adapter Cable As (3) 196-0055 Adapter Cable As (4) 225-5985 Parallel Port Cable (COMMUNICATION ADAPTER) (5) 275-5121 Communication Adapter As (6) 207-6845 Adapter Cable As Note: Items (3), (5), and (6) are part of the 275-5120 Communication Adapter Gp .Use the following procedure in order to connect Cat ET and the Communication Adapter II.
Remove the electrical power from the ECM.
Connect communications adapter (5) to a communications port on the PC by using one of the following methods:
Connect cable (4) between the "COMPUTER" end of communications adapter (5) and the parallel port of PC (1). Be sure to configure Cat ET for the parallel port. This configuration provides the fastest connection.
Connect cable (3) between the "COMPUTER" end of communication adapter (5) and the RS232 serial port of PC (1) .
Connect cables (2) and (3) between the "COMPUTER" end