DESCRIPTION The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems via CAN communication. Each ECU informs the other ECUs that it is connected to the network by sending a specified signal (periodic signal) onto the communication bus on a regular basis. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter assembly via the CAN communication bus to prevent improper operation of the auto away/return function while driving.
PROCEDURE
(a) Check for DTCs. Click here OK: DTCs are not output.
(a) Turn the ignition switch off. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Check the vehicle speed signal on the Techstream. (f) Enter the following menus: Body Electrical / Tilt & Telescopic / Data List. Body Electrical / Tilt & Telescopic / Data List
HINT: A vehicle speed of 3 km/h (2 mph) or more may be displayed on the Techstream immediately after the vehicle comes to a sudden stop. This is caused by a delay in vehicle signal received via CAN communication and is not a malfunction.
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Toyota Tundra Service Manual > Key Reminder Warning System: System Diagram
SYSTEM DIAGRAM Communication table: Sender Receiver Signal Line Main Body ECU Combination Meter Front Door Courtesy Light Switch CAN Main Body ECU Combination Meter Unlock Warning Switch CAN ...
