992K Wheel Loader Electrohydraulic System Caterpillar

Illustration 1	g02556416
Service tool connectors on RH Operator Console (1) ET Diagnostic Connector (2) VIMS Diagnostic Connector

The Transmission ECM and Implement ECM are located behind the RH cab access door.

Illustration 2	g02556418
Electronic Component locations behind the RH cab access door. (3) Transmission ECM (4) Implement ECM (5) PL121 Product Link Radio (6) VIMS Main (7) Machine Feature (Keypad Action) Alarm (8) Main Power Fuse/Relay Block (9) Low Power Fuse/Relay Block

For the machine that is being serviced, use the following to locate electrical components and connectors:

• Electrical System Schematic

• Parts Manual

• Operation and Maintenance Manual

The following information is a guide to reading the tables on the back of the Electrical System Schematic.

• The "Component Location" table uses white circles to mark the locations in the profile of the machine and in the area views. Alphabetical letters in the "Machine Location" column indicate a general area of the machine. Refer to the corresponding footnote at the end of the table for a description of the location.

• The "Harness Connector Location" table uses white circles to mark the locations in the general view and in the area views. Alphabetical letters in the "Machine Location" column indicate a general area of the machine. Refer to the corresponding footnote at the end of the table for a description of the location.

Connector Contact Numbers

Illustration 3	g00554751
Electronic Control Module (ECM)

Illustration 4	g01090860
Machine Harness Connectors J1 and J2 that mate to the ECM.