TERMINALS OF ECU 1. CHECK TRAILER BRAKE CONTROL ECU (BRAKE CONTROL WITH BRACKET RELAY) (a) Disconnect the J172 trailer brake control ECU (brake control with bracket relay) connector and measure the voltage or resistance on the wire harness side. ![]()
(b) Connect the J172 trailer brake control ECU (brake control with bracket relay) connector. (c) Measure the voltage and resistance according to the value(s) in the table below. If the result is not as specified, the ECU may be malfunctioning. ![]()
HINT: Measure the values on the wire harness side while the connector is connected.
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Toyota Tundra Service Manual > Audio And Visual System: Touch Panel Switch does not Function
PROCEDURE 1. CHECK TOUCH PANEL (a) Check for foreign matter on the display. OK: The display is clean. NG CLEAN DISPLAY AND RECHECK TOUCH PANEL OK 2. CHECK TOUCH SWITCH (OPERATION CHECK) (a) Enter the "Touch Switch Check" screen. [Refer to Check Touch Switch in Operation Check (See page )] (b) Touch ...