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Home >> Toyota >> 2019 >> RAV4 XLE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Hybrid Battery Control System - Service Information (1 Of 7)) >> Hybrid Vehicle Control Ecu >> Removal [08/2020 - 12/2021] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.

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

NECESSARY PROCEDURE AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Disconnect cable from negative battery terminal Perform steering sensor zero point calibration Lane control system Refer to INITIALIZATION [11/2018 - 12/2021]
Parking support brake system (for HV model)*
Pre-collision system
Lighting system (EXT) (w/ AFS)
Memorize steering angle neutral point Parking assist monitor system Refer to INITIALIZATION [11/2018 - 10/2022]
Panoramic view monitor system Refer to INITIALIZATION [11/2018 - 10/2022]
Reset back door close position Power back door system Refer to INITIALIZATION [11/2018 - 10/2023]
Back door lock initialization Power door lock control system Refer to INITIALIZATION [11/2018 - ]
w/ Smart Key System: 
  1. Hybrid vehicle control ECU assembly
 Code registration
  • Wireless door lock control system
  • Smart key system (for Entry function)
  • Smart key system (for start function)
  • Hybrid control system cannot be started
 Refer to REGISTRATION [10/2019 - 12/2021]
w/o Smart Key System: 
  1. Hybrid vehicle control ECU assembly
 Code registration Engine start function Refer to REGISTRATION [02/2019 - 10/2022]

*: When performing learning using the Techstream.

NOTE:

After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.

WAITING TIME BEFORE DISCONNECTING CABLE FROM NEGATIVE (-) AUXILIARY BATTERY TERMINAL

System Name See Procedure
Vehicle enrolled in Toyota Audio Multimedia system or safety connect system 6 minutes
Vehicle not enrolled in Toyota Audio Multimedia system and safety connect system 1 minute
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