DESCRIPTION When the tire pressure warning reset switch is turned on and off 3 times within 3 seconds (pressed → released → pressed → released → pressed → released), the tire pressure warning ECU and receiver switches to ID registration mode according to the automatic ID registration function. When the system enters ID registration mode, the tire pressure warning light blinks 3 times as an answer back function. The main body ECU (multiplex network body ECU) receives signals from the combination meter assembly via the CAN communication line. WIRING DIAGRAM Click here PROCEDURE
(a) Perform the test mode inspection and check for the tire pressure warning reset switch check item (DTC C2198/98). Click here
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Toyota Tundra Service Manual > Tire Pressure Warning System: System Diagram
SYSTEM DIAGRAM HINT: Each tire pressure warning valve and transmitter sends its transmitter ID, temperature and tire pressure information to the tire pressure warning ECU and receiver. Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Combination Meter Assembly Main Body ECU ( ...
