Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Slip Indicator Light Remains ON
DESCRIPTION
This procedure is for troubleshooting when the slip indicator light remains on but no DTCs are output.
The skid control ECU (brake actuator assembly) controls the slip indicator light in the combination meter assembly via CAN communication.
The slip indicator light blinks during VSC and/or TRAC operation.
If a malfunction is detected, the slip indicator light comes on to warn the driver.
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform "Calibration".
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PROCEDURE
| 1. | CHECK VEHICLE CONTROL HISTORY |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Enter the following menus: Chassis / Brake/EPB / Utility / Vehicle Control History (RoB).
(d) Using the Techstream, check for Vehicle Control History.
Click here
| Tester Display |
|---|
| Vehicle Control History (RoB) |
HINT:
If vehicle control history is stored (X2079, X208A, X20D7, X20D8, X204C or X2088), the slip indicator light illuminates.
| Result | Proceed to |
|---|---|
| No vehicle control history (X2079, X208A, X20D7, X20D8, X204C and X2088) | A |
| Vehicle control history exists (X2079, X208A, X20D7, X20D8, X204C or X2088) | B |
| B | .gif) | PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY |
|
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| 2. | INSPECT COMBINATION METER ASSEMBLY |
(a) Enter the following menus: Body Electrical /Combination Meter / Active Test.
(b) Perform the Active Test of the combination meter assembly using the Techstream.
Body Electrical > Combination Meter > Active Test| Tester Display |
|---|
| Indicat. Lamp Slip |
(c) Check the combination meter assembly.
OK:
The slip indicator light turns on or off in accordance with the Techstream operation.
| OK | | REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG | | INSPECT METER / GAUGE SYSTEM |
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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