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 > Sfi System: Fuel Pump Control Circuit
DESCRIPTION The fuel pump circuit consists of the ECM, fuel pump and fuel pump ECU (which operates the fuel pump). Based on the engine output, the ECM determines the fuel pump speed. The speed is then converted to a duty signal and sent to the fuel pump ECU. Based on the signal sent from the ECM, th ...
