Toyota Avalon Service & Repair Manual: Removal



The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during motor cable 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.

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Auxiliary battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent clearance sonar system*

Lighting system (w/ AFS)(EXT)

Memorize steering angle neutral point

Parking assist monitor system

Panoramic view monitor system

Replacement of ECM

Perform Vehicle Identification Number (VIN) registration

MIL illuminates

Replacement of inverter with converter assembly

Resolver learning

  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration


  • Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.

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  • To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.


  • 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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  • If the ECM has been struck or dropped, replace it.
  • Perform Vehicle Identification Number (VIN) registration when replacing the ECM.

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Be sure to wear insulated gloves.

(a) Remove the 2 bolts and connector cover from the hybrid vehicle transaxle assembly.

(b) Disengage the 2 claws to remove the terminal cap from the hybrid vehicle transaxle assembly.

(c) Using an insulated tool, remove the 6 bolts and motor cable from the hybrid vehicle transaxle assembly.


  • Keep the motor cable terminals and their installation area free from foreign matter, water, etc.
  • Do not touch the waterproof seal or terminals of the motor cable.
  • Cover the hole where the motor cable was installed with tape or equivalent (non-residue type) to prevent entry of foreign matter.


Waterproof Seal


    Oil Cooler

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