DIAGNOSIS SYSTEM 1. DESCRIPTION (a) When troubleshooting a vehicle with the diagnostic system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the multiplex tilt and telescopic ECU. The multiplex tilt and telescopic ECU stores DTCs when the ECU detects a malfunction in itself or in its circuits. To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream enables the DTCs to be cleared, several actuators to be activated, and the freeze frame data and various forms of steering data to be checked. 2. CHECK DLC3 (a) Check the DLC3. Click here
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Toyota Tundra Service Manual > Trailer Brake Control System: System Diagram
SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line Skid Control ECU (Brake Actuator Assembly) Trailer Brake Control ECU (Brake Control with Bracket Relay) Vehicle speed signal Master cylinder pressure signal Anti-lock brake control status signal Hill-start assist control status signal Tr ...
