SEAL KIT 6V3168 - Caterpillar

Illustration 1 g06264937
Brake Electronic Control System for 777D Off-Highway Truck
(A) Input Locations
(B) ARC Inputs
(C) TCS Inputs
(D) Cat Data Link
(E) ARC Outputs
(F) YSC Outputs
(1) Brake ECM
(2) ECM location code
(3) Left Brake Release Pressure Sensor
(4) Right Brake Release Pressure Sensor
(5) Engine Output Speed Sensor
(6) ARC ON/OFF Switch
(7) Retarder Pressure Switch
(8) Auto Retarder Pressure Switch
(9) TCS Test Switch
(10) Left Wheel Speed Sensor
(11) Right Wheel Speed Sensor
(12) Electronic Data Service Tool
(13) Engine ECM
(14) Transmission/Chassis ECM
(15) Cat® Monitoring System
(16) Shift Lever Switch
(17) Actual Gear Switch
(18) Throttle Sensor
(19) Engine Speed/Timing Sensor
(20) Transmission Output Speed Sensor
(21) Service/Retarder Brake Switch
(22) Parking/Secondary Brake Switch
(23) ARC Supply Solenoid
(24) ARC Control Solenoid
(25) Retarder Engaged Lamp
(26) TCS Engaged Lamp
(27) TCS Selector Left and Right Solenoid
(28) Proportional Servo Solenoid
Illustration 2 g00532040
Location of the Brake Electronic Control Module 777D Series Truck
Illustration 3 g06264965
Brake Electronic Control System for 777E Off-Highway Truck
(A) Input Locations
(B) ARC Inputs
(C) TCS Inputs
(D) Cat® Data Link
(E) ARC Outputs
(F) YSC Outputs
(1) Brake ECM
(2) ECM location code
(5) Engine Output Speed Sensor
(6) ARC ON/OFF Switch
(7) Retarder Pressure Switch
(8) Auto Retarder Pressure Switch
(9) TCS Test Switch
(10) Left Wheel Speed Sensor
(11) Right Wheel Speed Sensor
(12) Electronic Data Service Tool
(13) Engine ECM
(14) Transmission/Chassis ECM
(15) Monitor ECM
(16) Shift Lever Sensor
(17) Actual Gear Switch
(18) Throttle Sensor
(19) Engine Speed/Timing Sensor
(20) Transmission Output Speed Sensor
(21) Service/Retarder Brake Switch
(22) Parking/Secondary Brake Switch
(23) ARC Supply Solenoid
(24) ARC Control Solenoid
(25) Retarder Engaged Lamp
(26) TCS Engaged Lamp
(27) TCS Left and Right Selector Solenoid
(28) Proportional Servo Solenoid
Illustration 4 g06089510
Location of the Brake Electronic Control Module 777E Series Truck
The "Brake Electronic Control Module" (Brake ECM) is the main component in the brake electrical system. The "Brake ECM" is located in the compartment at the rear of the cab. The "Brake ECM" has several input signals and output signals. Refer to Illustration 1 (Model Series 777D) or Illustration 3 (Model 777E) for the input and output signals.The Brake ECM controls the Automatic Retarder Control (ARC) and the Traction Control System (TCS) functions. The Brake ECM receives information from various input components that are listed in Illustration 1 (777D) or Illustration 3 (777E). The "Brake ECM" uses this information to determine if the service brakes and the retarder brakes should engage for the ARC. In addition. the "Brake ECM" uses this information to apply the parking and secondary brakes for the TCS. The output components are then activated to apply the ARC or the TCS.See the Service Manual, "Automatic Retarder Control (ARC) System" and the Service Manual, "Traction Control System (TCS)" for additional information about these systems.The Cat® Data Link allows sharing of information with other systems such as the Power Train Electronic Control Module, or the Engine Electronic Control Module.