DESCRIPTION When the seat memory switch is operated, the switch input signal is sent via CAN communication from the outer mirror control ECU assembly LH to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then sends the memorization request or recall request signals to the outer mirror control ECU assembly LH and outer mirror control ECU assembly RH via CAN communication. The outer mirror control ECU assembly LH and outer mirror control ECU assembly RH memorize the mirror position when a memorization request signal is received, and move the mirror to the memorized position when a recall request signal is received. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem. Click here PROCEDURE
(a) Check that the mirror operates. Click here OK: Mirror operates normally.
(a) Perform a seat memory operation properly. Click here (b) When any seat memory switch (M1 or M2 switch) is pressed, check that the driver side seat moves to the memorized position. OK: Driver side seat moves to memorized position.
(a) Using the Techstream, read the Data List. Click here (1) for LH side: Mirror L
(2) for RH side: Mirror R
OK: The display is as specified in the normal condition column.
(a) Disconnect the N5 outer rear view mirror assembly LH connector. (b) Disconnect the N13 outer mirror control ECU assembly LH connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Temporarily replace the outer rear view mirror assembly LH with a new or known good one. Click here (b) Check that the memory and reactivation function operates. Click here OK: Memory and reactivation function operates normally.
(a) Disconnect the M6 outer rear view mirror assembly RH connector. (b) Disconnect the M12 outer mirror control ECU assembly RH connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Temporarily replace the outer rear view mirror assembly RH with a new or known good one. Click here (b) Check that the memory and reactivation function operates. Click here OK: Memory and reactivation function operates normally.
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Toyota Tundra Service Manual > Climate Control Seat Switch: Installation
INSTALLATION PROCEDURE 1. INSTALL AIR CONDITIONING CONTROL ASSEMBLY (CLIMATE CONTROL SEAT SWITCH) (a) Attach the 3 clips to connect the air conditioning control assembly (climate control seat switch) to the center lower instrument panel finish panel. (b) Connect each connector. (c) Attach the 8 clip ...