DESCRIPTION When the driver door key cylinder (key linked switch) is turned, the following occurs: 1) the door lock motor receives the signal; 2) the main body ECU (multiplex network body ECU) sends the signal to the power window regulator motors; and 3) the power window motors are activated. PROCEDURE
(a) Check for LIN communication system DTCs related to the power window control system. Click here OK: LIN communication system DTCs are not output.
(a) Check if DTC B2312 is output (See page OK: DTC B2312 is not output.
(a) Use the Data List to check if the door lock switch is functioning properly. Main Body
OK: On the Techstream screen, each item changes between ON and OFF according to above chart.
(a) Check that the manual UP/DOWN function using the master switch can operate
the front door power window LH and RH (See page
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Toyota Tundra Service Manual > Pre-collision System: Stop Light Relay Circuit (C1A4B)
DESCRIPTION The skid control ECU (brake actuator assembly) sends a stop light operation request signal to the stop light relay (stop light switch assembly). If the skid control ECU (brake actuator assembly) detects a malfunction in the stop light relay circuit, the millimeter wave radar sensor assem ...
