DESCRIPTION This circuit sends an operation signal from the steering pad switch assembly to the radio and display receiver assembly. If there is an open in the circuit, the audio system cannot be operated using the steering pad switch assembly. If there is a short in the circuit, the same condition as when the switch is continuously depressed occurs. Therefore, the radio and display receiver assembly cannot be operated using the steering pad switch assembly, and the radio and display receiver assembly itself cannot function. WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT CAUTION:
PROCEDURE
(a) Remove the steering pad switch assembly (See page
(b) Inspect the steering pad switch assembly (See page
(a) Remove the spiral cable sub-assembly (See page
(b) Inspect the spiral cable sub-assembly (See page
(a) Disconnect the J139 radio and display receiver assembly connector. (b) Disconnect the J45 spiral cable sub-assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Power Window Control System(w/ Jam Protection Function): All Power Windows does not Operate with Door Key Cylinder
DESCRIPTION When the driver door key cylinder (key linked switch) is turned, the following occurs: 1) the door lock motor receives the signal; 2) the main body ECU (multiplex network body ECU) sends the signal to the power window regulator motors; and 3) the power window motors are activated. PROCED ...