Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / Hybrid / Battery Control / Hybrid Vehicle Control Ecu / 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 hybrid vehicle control ECU 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
*: When performing learning using the Techstream.
Disconnect cable from negative battery terminal	Perform steering sensor zero point calibration	Lane departure alert system (w/ Steering Control)
		Pre-collision system
		Intelligent clearance sonar system*
		Lighting System (for HV Model with Cornering Light)
	Memorize steering angle neutral point	Parking assist monitor system
	Memorize steering angle neutral point	Panoramic view monitor system
Replacement of hybrid vehicle control ECU	Code registration (Smart key System (for Start Function))	Wireless door lock control system Smart key system (for Entry Function) Smart key system (for Start Function) Steering lock function

CAUTION:

Be sure to read Precaution thoroughly before servicing.

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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.

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PROCEDURE

1. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY

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2. REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY

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3. REMOVE HYBRID VEHICLE CONTROL ECU

(a) Disconnect the 4 hybrid vehicle control ECU connectors.

(b) Remove the bolt, nut and hybrid vehicle control ECU.

Installation

Inverter With Converter

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DESCRIPTION If a malfunction is detected in the power source circuit, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1417 and prohibits operation of ABS, brake assist, regenerative brake cooperative control, etc. DTC C1417 is stored if an excessive ECU voltage due to ...

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

Installation

Inverter With Converter

See More:

Toyota Avalon (XX50) 2019-2022 Owners Manual

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual