DESCRIPTION The main body ECU (multiplex network body ECU) receives seat memory switch signals from the outer mirror control ECU assembly via CAN communication. If the seat memory SET switch is being pressed when one of the M1or M2 switches is pressed, or if either of the M1 or M2 switches is pressed within 3 seconds of pressing the seat memory SET switch, the main body ECU (multiplex network body ECU) sends a memory request signal to the position control ECU and switch assembly. After receiving the request signal, the position control ECU and switch assembly memorizes the location data of each motor. WIRING DIAGRAM PROCEDURE
(a) Use the Techstream to check if the CAN communication system is functioning normally (See page ). OK: CAN communication DTC is not output.
(a) Check that each function of the power seat operates normally by using the power seat switches (See page ). OK: Each function of the power seat operates normally by using the power seat switches.
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Driver Seat / Data List. (e) Read the Data List according to the display on the Techstream. Driver Seat
OK: ON or OFF is displayed on the Techstream according to the table above.
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Driver Seat / Active Test. (e) Perform the Active Test according to the display on the Techstream. Driver Seat
OK: Buzzer sounds normally.
(a) Temporarily replace the outer mirror ECU assembly with a new or normally functioning one (See page ).
(a) Perform a memory operation and check that the buzzer sounds to indicate the completion of the memory operation (See page ). NOTICE:
OK: Seat position memory function operates normally.
(a) Temporarily replace the position control ECU and switch assembly with a new or normally functioning one (See page ).
(a) Perform a memory operation and check that the buzzer sounds to indicate the completion of the memory operation (See page ). NOTICE:
OK: Seat position memory function operates normally.
(a) Remove the seat memory switch (See page ). (b) Inspect the seat memory switch (See page ).
(a) Disconnect the N14 outer mirror control ECU assembly connector. (b) Disconnect the N6 seat memory switch connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Tire And Wheel System: Precaution
PRECAUTION 1. REMOVAL AND INSTALLATION OF THE TIRE PRESSURE WARNING VALVE SUB-ASSEMBLY (a) When installing a tire, make sure that the tire pressure warning valve and transmitter does not interfere with the tire bead in order to prevent damage to the sensor. (b) After completing the installation, rem ...