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
1. | INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM) |
(a) Check the output waveform. (1) Remove the combination meter assembly with the connector(s) still connected. (2) Connect an oscilloscope to terminal J10-19 (+S) and body ground. (3) Turn the engine 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. |
|
NG | ![]() | GO TO METER / GAUGE SYSTEM |
|
2. | INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY (INPUT WAVEFORM) |
(a) Check the input waveform.
*a | Component with harness connected (Stereo Component Amplifier Assembly) | - | - |
(1) Remove the stereo component amplifier assembly with the connector(s) still connected.
(2) Connect an oscilloscope to terminal J156-11 (SPD) and body ground.
(3) Turn the engine switch on (IG).
(4) Turn a wheel slowly.
(5) Check the signal waveform according to the condition(s) in the table below.
Item | Condition |
---|---|
Measurement terminal | J156-11 (SPD) - Body ground |
Tool setting | 5 V/DIV., 20 ms./DIV. |
Vehicle condition | Wheel being rotated |
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.
OK | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - COMBINATION METER ASSEMBLY) |
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Rear Speed Sensor (for 2wd): Components
COMPONENTS ILLUSTRATION *1 REAR AXLE HUB AND BEARING ASSEMBLY *2 REAR DISC *3 REAR DISC BRAKE CALIPER ASSEMBLY *4 REAR SKID CONTROL SENSOR WIRE *5 REAR SUSPENSION ARM COVER *6 REAR FLEXIBLE HOSE *7 NO. 2 PARKING BRAKE WIRE ASSEMBLY *8 REAR DISC BRAKE DUST COVE ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Washer Nozzle(for Front Side): Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE WASHER NOZZLE SUB-ASSEMBLY (a) Using a screwdriver, disengage the 2 claws as indicated by the arrows, in the order shown in the illustrati ...