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.
|Replaced Part or Performed Procedure||Necessary Procedures||Effect/Inoperative Function when Necessary Procedure not Performed||Link|
|Hybrid vehicle control ECU||
When vehicle ECU compensation code cannot be read
When vehicle ECU compensation code can be read
|Perform code registration||Hybrid control system cannot be started||See Service Bulletin for the registration method.|
|Disconnect cable from auxiliary negative battery terminal||Memorize steering angle neutral point||LKA/LDA system|
|Parking assist monitor system|
|Steering sensor zero point calibration||Variable gear ratio steering system|
Use the same procedure for RHD and LHD vehicles.
The procedure listed below is for LHD vehicles.
Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.
REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY
REMOVE NO. 2 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY
REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY
REMOVE HYBRID VEHICLE CONTROL ECU ASSEMBLY
Disconnect the 4 connectors.
Remove the bolt, nut and hybrid vehicle control ECU assembly.
Do not drop the hybrid vehicle control ECU assembly, strike it with tools or subject it to impact.
If the hybrid vehicle control ECU assembly is subjected to an impact, replace it with a new one.