DESCRIPTION When the outer mirror switch assembly (mirror master switch) is operated, right/left selection signals are sent to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends the received right/left selection signals to the outer mirror control ECU assemblies via CAN communication. 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) Using the Techstream, read the Data List. Click here
OK: The display is as specified in the normal condition column.
(a) Remove the outer mirror switch assembly. Click here (b) Inspect the outer mirror switch assembly. Click here
(a) Disconnect the J131 outer mirror switch assembly connector. (b) Disconnect the J164 main body ECU (multiplex network body ECU) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Navigation System: Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
DESCRIPTION The stereo component amplifier assembly receives a vehicle speed signal from the combination meter assembly to control the ASL function. HINT: A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the ...