Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Electric Parking Brake System AUTO Function Circuit

NOTICE:

• The AUTO function (IG-OFF linked function) will not be automatically disabled when the engine switch is on (IG), the brake pedal is depressed and the shift lever is moved out from P if the electric parking brake switch assembly is moved to the engage side. The AUTO function (IG-OFF linked function) will not automatically operate to apply the electric parking brake when the shift lever is moved to P if the electric parking brake switch assembly is moved to the release side.
• The electric parking brake may still operate up to 20 seconds after the engine switch is turned off. Before disconnecting connectors or fuses, turn the engine switch off and wait 20 seconds or more.
• After replacing the skid control ECU (brake actuator assembly), perform "Calibration".

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• When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch (electric parking brake switch assembly) as the parking brake indicator light blinks (red) when the engine switch is first turned on (IG).

Brake Warning Light (Yellow) Remains On

DESCRIPTION This procedure is for troubleshooting when the brake warning light (yellow) remains on but no DTCs are output. The skid control ECU (brake actuator assembly) controls the brake warning lig ...

Forced Release

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