Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Electric Parking Brake System AUTO Function Circuit
DESCRIPTION
The skid control ECU (brake actuator assembly) receives shift position signals from the ECM via CAN communication to control the electric parking brake system AUTO function (IG-OFF linked function).
The electric parking brake system AUTO function (IG-OFF linked function) is automatically disabled when the engine switch is on (IG), the brake pedal is depressed and the shift lever is moved out of P. Then, if the shift lever is moved to P, the AUTO function (IG-OFF linked function) automatically operates to apply the electric parking brake.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
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".
Click here
.gif)
- 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).
PROCEDURE
| 1. | CHECK DTC (SFI SYSTEM) |
(a) Check for DTCs.
Powertrain > Engine > Trouble Codes| Result | Proceed to |
|---|---|
| DTC is not output | A |
| DTC is output | B |
| A | .gif) | REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
| B | | GO TO SFI SYSTEM |
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
...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Front Door Belt Moulding: Components
COMPONENTS ILLUSTRATION *A for Driver Side *B for Front Passenger Side *1 COURTESY LIGHT ASSEMBLY *2 DOOR ARMREST COVER *3 FRONT DOOR INSIDE HANDLE BEZEL PLUG *4 FRONT DOOR NO. 1 STIFFENER CUSHION *5 FRONT DOOR TRIM BOARD SUB-ASSEMBLY *6 MULTIPLEX NETWORK MAST ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Vehicle Stability Control System: Brake Pressure Sensor "A" Circuit Voltage Above Threshold (C054017)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area C054017 Brake Pressure Sensor "A" Circuit Voltage Above Threshold When vehicle speed exceeds 3 km/h (2 mph) and stop light switch assembly is OFF, master cylinder pressure continuously exceeds 1.764 MPa (18.0 kg ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0142