Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during 4WD ECU assembly removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced| Replacement Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
| Battery terminal is disconnected/reconnected | Memorize steering angle neutral point | Lane Control System | |
| Pre-collision system | |||
| Intelligent clearance sonar system*1 | |||
| 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) | | |
| 4WD ECU assembly (When replaced with a known good one from another vehicle)*2 | Clear zero point calibration data | Dynamic Torque Control AWD System | |
*1: When performing learning using the Techstream.
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*2: When the 4WD ECU assembly is replaced with a new one, calibration is unnecessary.
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 FRONT DOOR SCUFF PLATE RH
-
w/o Rear No. 2 Seat
Click here
-
w/ Rear No. 2 Seat
Click here
4. REMOVE COWL SIDE TRIM BOARD RH
Click here
5. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
Click here
6. REMOVE 4WD ECU ASSEMBLY
| (a) Disconnect the 4WD ECU assembly connector. |
|
| (b) Remove the bolt and 4WD ECU assembly. |
|
Installation
INSTALLATION PROCEDURE 1. PRECAUTION NOTICE: When 4WD ECU assembly is replaced with a known good one from another vehicle, it is necessary to perform calibration. Click here 2. INSTALL 4WD ECU ASSEM ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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