DIAGNOSIS SYSTEM
DESCRIPTION
(a) When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the clearance warning ECU assembly.
The clearance warning ECU assembly stores DTCs when the ECU detects a malfunction in the ECU itself or in its circuits.
To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream makes it possible to clear the DTCs, activate the various actuators, and check the freeze frame data and Data List.
CHECK DLC3
(a) Check the DLC3.
Click here
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Power Mirror Control System (w/o Memory): Reverse Shift-linked Function of Power Mirrors does not Operate
DESCRIPTION The ECM sends the reverse signal to the main body ECU (multiplex network body ECU) via CAN communication. When receiving the reverse signal, the main body ECU (multiplex network body ECU) sends the reverse request signal to each outer mirror control ECU assembly. Based on the signal, eac ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Panoramic Moon Roof System: Panoramic Moon Roof System does not Operate
DESCRIPTION The sliding roof ECU (sliding roof drive gear assembly) and roof sunshade ECU (sliding roof drive gear assembly) receive each other's position information from the main body ECU (multiplex network body ECU) via LIN communication. The sliding roof ECU (sliding roof drive gear assembly) an ...