DESCRIPTION The stereo component amplifier assembly receives a vehicle speed signal from the combination meter assembly to control the ASL function. HINT:
WIRING DIAGRAM ![]() PROCEDURE
(a) Check the input waveform. ![]()
(1) Remove the stereo component amplifier assembly with the connector(s) still connected. (2) Connect an oscilloscope to terminal G8-11 (SPD) and body ground. (3) Turn the power switch on (IG). (4) Turn a wheel slowly. (5) Check the signal waveform according to the condition(s) in the table below.
OK: The waveform is similar to that shown in the illustration. HINT: When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lin Communication System(for Gasoline Model): P/W Master Switch Communication Stop (B1206,B1273,B2321-B2324)
DESCRIPTION This DTC is stored when LIN communication between the main body ECU (multiplex network body ECU) and multiplex network master switch assembly, sliding roof ECU (sliding roof drive gear assembly)*, power window regulator motor assembly (driver door), power window regulator motor assembly ...