HARNESS AS-FRONT 3928380 - Caterpillar

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Input and output components of the chassis ECMComponent Locations
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View of cab (1) Directional/speed control (2) Hoist control (3) Advisor (4) Instrument Cluster
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Controls (1) Directional/speed control (2) Hoist control (5) Retarder adjustment (6) Automatic retarder control (ARC) (7) Throttle backup and throttle lock switch (8) Left hand power window switch (9) Right hand power window switch (10) WAVS switch (if equipped) (11) Front brake retarding switch
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Controls (12) Switch for headlights, parking lights, and taillights (13) Hazard flasher switch (14) Switch for front fog lights (15) Heated mirror switch (if equipped) (16) Switch for access lights (17) Panel light switch (18) Engine start switch (19) Cigar lighter (20) 12 V power receptacle (21) Fan speed switch (22) Temperature variable control (23) Air conditioner switchThe following components are located in the compartment that is accessed from the exterior, front of the cab:
VIMSTM 3G ECMs (Main and App)
Smart signal ECM (If equipped)
Drivetrain ECMThe following components are located in the rear compartment of the cab:
Product link radioThe brake ECM controls the following items:
The automatic retarder control (ARC)
The traction control system (TCS)
The service brakes
The parking brakes
The cooling of the brakesThe electronic control modules communicate with each other through the Cat Data Link. Information from the electronic control modules can be accessed through one of the following tools:
Advisor display module
Instrument Cluster display module
Caterpillar Electronic Technician (Cat ET) service toolThe following references should be used to locate the electrical components and connectors:
Electrical Schematic
Parts Manual
Operation and Maintenance ManualThe following information is a guideline to reading:
Charts for component locations
Charts for harness connectors
Area views
Machine profileAll of these components can be found on the back of the Electrical Schematic.Connector Contact Numbers
Brake ECM
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Electronic control module (ECM)
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Machine harness connectors J1 and J2 that mate to the ECM.