Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake booster assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement Part or Procedure

Necessary Procedures

Effects/Inoperative when not Performed

Link

Disconnect cable from negative battery terminal

Memorize steering angle neutral point

Lane control system

Pre-collision system

Intelligent clearance sonar system

Lighting system (w/ Automatic Headlight Beam Level Control System)

Parking assist monitor system

Panoramic view monitor system

Initialize back door lock

Power door lock control system

Reset back door close position

Power back door system (w/ Outside Door Control Switch)

CAUTION / NOTICE / HINT

NOTICE:

Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click here

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here

3. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY WITH WAY

Click here

4. REMOVE FRONT DOOR SCUFF PLATE LH

w/o Rear No. 2 Seat: Click here

w/ Rear No. 2 Seat: Click here

5. REMOVE COWL SIDE TRIM BOARD LH

Click here

6. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

7. REMOVE FRONT WIPER MOTOR AND LINK ASSEMBLY

Click here

8. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

Click here

9. REMOVE BRAKE MASTER CYLINDER RESERVOIR ASSEMBLY

(a) Disconnect the reservoir level switch connector and remove the bolt from the brake master cylinder reservoir assembly.

*1

Brake Master Cylinder Reservoir Assembly

*2

Reservoir Bracket

(b) Move the brake master cylinder reservoir assembly as shown in the illustration to disengage the 2 claws, and remove it.

10. REMOVE RESERVOIR BRACKET

(a) Remove the 2 bolts and reservoir bracket.

11. DISCONNECT UNION TO CHECK VALVE HOSE

(a) w/o Rear Air Conditioning System:

(1) Slide the clip and disconnect the union to check valve hose from the brake booster assembly.

(2) Separate the union to check valve hose from the engine room main wire.

(b) w/ Rear Air Conditioning System:

(1) Slide the clip and disconnect the union to check valve hose from the brake booster assembly.

(2) Disengage the clamp and separate the union to check valve hose from the suction pipe sub-assembly.

12. SEPARATE ENGINE ROOM MAIN WIRE (for TMC Made)

(a) Disengage the 6 clamps to separate the engine room main wire.

(b) Disconnect the connector from the security horn assembly.

(c) Disconnect the connector from the vacuum warning switch assembly.

(d) Remove the bolt.

(e) Disengage the clamp and pin to separate the wire harness protector.

(f) Disengage the clamp.

(g) Remove the 3 bolts to separate the engine room relay block assembly.

13. SEPARATE ENGINE ROOM MAIN WIRE (for TMMC Made)

(a) Disengage the 6 clamps to separate the engine room main wire.

(b) w/ Security Horn Assembly:

(1) Disconnect the connector from the security horn assembly.

(c) Disconnect the connector from the vacuum warning switch assembly.

(d) Remove the bolt.

(e) Disengage the clamp and pin to separate the wire harness protector.

(f) Disengage the clamp.

(g) Remove the 3 bolts to separate the engine room relay block assembly.

14. DISCONNECT FUEL VAPOR FEED HOSE ASSEMBLY

(a) Slide the clip and disconnect the fuel vapor feed hose assembly.

15. SEPARATE AIR CONDITIONING HOSE AND ACCESSORY (w/ Rear Air Conditioning System)

(a) Remove the nut and separate the air conditioning hose and accessory.

NOTICE:

  • Do not deform the refrigerant lines.
  • Do not damage the clamp.

16. SEPARATE BRAKE LINE

(a) Disengage the brake tube clamp to separate the 2 brake lines.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not damage the clamp.

17. REMOVE BRAKE PEDAL RETURN SPRING

Click here

18. LOOSEN LOCK NUT

(a) Loosen the lock nut of the brake master cylinder push rod clevis.

*1

Lock Nut

*2

Brake Master Cylinder Push Rod Clevis

19. REMOVE PUSH ROD PIN

Click here

20. REMOVE BRAKE BOOSTER ASSEMBLY

(a) Remove the 4 nuts and push the brake booster assembly toward the engine compartment.

NOTICE:

Do not apply excessive force to the brake lines.

(b) Remove the brake master cylinder push rod clevis and lock nut from the brake booster assembly.

(c) Remove the brake booster assembly from the vehicle body.

NOTICE:

Do not apply excessive force to the brake lines.

21. REMOVE BRAKE BOOSTER GASKET

    Inspection
    INSPECTION PROCEDURE 1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Check that there is ventilation from the booster side to the engine side, and no ventilation from the engine side to the booste ...

    Reassembly
    REASSEMBLY PROCEDURE 1. INSTALL VACUUM WARNING SWITCH ASSEMBLY (for TMC Made) (a) Install a new check valve grommet to the brake booster assembly. (b) Install the vacuum warning switch assembly to the ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Audio And Visual System (for 12.3 Inch Display): How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the audio and visual system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS When troubleshooting, check that the problem symptoms ...

    Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Window Defogger System: Terminals Of Ecu
    TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY *A w/o Seat Heater System *B w/ Seat Heater System (a) Disconnect the J43 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the valu ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2022 Copyright www.lexusrx.net
    0.0168