HOSE AS 4305167 - Caterpillar

Illustration 1 g01760398
Mounting of a typical A3 ECM
(1) ECM mounting hardware
(2) Ground strap assembly
(3) ECM connectors
Use a 4 mm allen wrench to disconnect ECM connectors (3).
Remove the mounting nuts from the studs that are part of ECM mounting hardware (1).
Remove the screw from the ECM for ground strap assembly (2). Note: The rubber grommets behind the ECM are held in place by the mounting studs. These grommets help to reduce vibration. The grommets may fall when the ECM is removed. Be sure not to lose the grommets.
Remove the ECM from the terminal box.
Install the replacement ECM.
Use the mounting hardware to install the new ECM. Use a mounting nut to fasten the ground strap for the ECM to the upper left mounting stud. Install the screw for the ground strap assembly into the ECM. Ensure that the ground strap has good continuity to the case of the ECM as you tighten the screw. Install the other three mounting nuts.Check the mounting hardware and the ECM for correct installation. A correctly installed ECM will move slightly on the rubber grommets. If the ECM cannot move slightly on the grommets, check that the washers, spacers, and grommets are positioned correctly.
Use a 4 mm allen wrench to connect the P1 and P2 connectors to the ECM. Torque each allen head screw to the correct torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Program the configuration parameters and the monitoring system parameters into the replacement ECM.
Restore the electrical power to the engine.
Set the engine control to the "STOP" mode.
Select "File/Select ECM" from the drop-down menu.
Select the replacement ECM and click "OK".
Select "Service/Copy Configuration/ECM Replacement" from the drop-down menu. Click "OK" on the window.
Select "Program ECM" from the lower left corner of the screen. Select the replacement ECM and click "OK". If the correct ECM is shown, select "Yes".
After the loading is complete, a window with the message "Programming Conflict Warning" will appear. Select "OK".
A window with the message "Program ECM Results" will appear. Select "OK". Note: When an ECM is replaced, the system configuration parameters must be programmed into the new ECM. The new ECM will allow specific parameters to be programmed once without the use of factory passwords. Any parameters that require factory passwords on the ECM that is being replaced may require the use of factory passwords in order to configure these parameters on the new ECM.
Calibrate the speed/timing sensor. See Troubleshooting, "Timing - Calibrate".