Lexus ES: 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 pump assembly removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
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*: When performing learning using the Techstream.
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| Auxiliary battery terminal is disconnected/reconnected | Perform steering sensor zero point calibration | Lane Control System | |
| Pre-collision System | |||
| Parking Support Brake System* | |||
| Lighting System | |||
| Memorize steering angle neutral point | Parking Assist Monitor System | | |
| Panoramic View Monitor System | | ||
| Initialize power trunk lid system | Power Trunk Lid System | | |
NOTICE:
- After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
- After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)
CAUTION / NOTICE / HINT
NOTICE:
While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
2. PERFORM ACCUMULATOR PRESSURE ZERO DOWN
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3. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
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4. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY
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5. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
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6. DRAIN BRAKE FLUID
NOTICE:
If brake fluid leaks onto any painted surface, immediately wash it off.
7. DISCONNECT NO. 2 BRAKE ACTUATOR HOSE
| (a) Slide the clip and disconnect the No. 2 brake actuator hose from the No. 1 brake actuator tube. |
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8. DISCONNECT ACCUMULATOR TO BRAKE MASTER CYLINDER TUBE
| (a) Using a union nut wrench, disconnect the accumulator to brake master cylinder tube from the brake booster pump assembly. NOTICE:
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(b) Remove the bolt and separate the accumulator to brake master cylinder tube from the No. 1 brake tube clamp bracket.
9. REMOVE BRAKE BOOSTER PUMP ASSEMBLY
(a) Release the lock lever and disconnect the connector from the brake booster pump assembly as shown in the illustration.
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.png) | Release the lock lever |
.png) | Disconnect the connector |
NOTICE:
Be careful not to allow any brake fluid to enter the connector.
| (b) Disengage the claw and clamp to separate the brake booster pump assembly wire harness from the brake actuator bracket assembly. |
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| (c) Remove the nut from the brake booster pump assembly. |
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(d) Remove the brake booster pump assembly, brake booster pump bushing and brake actuator case collar from the brake actuator bracket assembly as shown in the illustration.
NOTICE:
- Do not apply excessive force to the brake lines.
- Do not carry the brake booster pump assembly by the parts shown in the illustration.
- Do not drop the brake booster pump assembly when carrying it.
- Be careful not to allow brake fluid to enter the connector.
| *a | Union |
| *b | Connector |
| *c | Wire Harness |
| *d | Stud |
| | Remove in this Direction |
| (e) Remove the 2 brake booster pump collars and 2 brake booster pump bushings from the brake booster pump assembly. HINT: Perform this procedure only when replacement of the brake booster pump collars or brake booster pump bushings is necessary. |
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10. REMOVE NO. 2 BRAKE ACTUATOR HOSE
| (a) Slide the clip and remove the No. 2 brake actuator hose from the brake booster pump assembly. |
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11. REMOVE NO. 1 BRAKE TUBE CLAMP BRACKET
| (a) Remove the bolt and No. 1 brake tube clamp bracket from the brake booster pump assembly. |
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READ NEXT:
Bleeding
BLEEDING CAUTION / NOTICE / HINT NOTICE:
Move the shift lever to P and apply the parking brake before bleeding the brakes.
Add brake fluid to keep the level between the MIN and MAX lines of the r
Components
COMPONENTS ILLUSTRATION *1 BRAKE MASTER CYLINDER RESERVOIR FILLER CAP ASSEMBLY - - ILLUSTRATION *1 FRONT DISC BRAKE BLEEDER PLUG *2 FRONT DISC BRAKE BLEEDER PLUG CAP *3 RE
SEE MORE:
Hybrid/EV Battery Energy Control Module Unexpected Operation (P0A1F94)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU (main CPU) monitors the battery ECU assembly. The cause of this malfunction may be the following: Battery ECU assembly internal malfunction
Battery ECU assembly malfunction
DESCRIPTION The hybrid vehicle control ECU (main CPU)
Parts Location
PARTS LOCATION ILLUSTRATION *1 DEF RELAY *2 REAR WINDOW DEFOGGER WIRE *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - DEF FUSE *4 BACK WINDOW GLASS ILLUSTRATION *1 REAR WINDOW DEFOGGER SWITCH (AIR CONDITIONING CONTROL ASSEMBLY) *2 DLC3 *3 A
