FUEL PUMP ECU REMOVAL

CAUTION / NOTICE / HINT

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

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure	Necessary Procedures	Effects/Inoperative when not Performed	Link
Battery terminal is disconnected/reconnected	Drive the vehicle until stop and start control is permitted (approximately 15 to 40 minutes)	Stop and start system	Click here
	Memorize steering angle neutral point	Panoramic view monitor system	Click here
	Initialize back door lock	Power door lock control system	Click here
	Initialize servo motor	Air conditioning system	Click here
	Reset slide door close position	Power slide door system	Click here
	Reset back door close position	Power back door system	Click here
Replacement of main body ECU (multiplex network body ECU)	Perform code registration (Immobiliser system)	Wireless door lock control system Smart entry and start system Engine start function Steering lock system	See Service Bulletin for the registration method.
Replacement of main body ECU (multiplex network body ECU)	Turning the engine switch on (IG)	Automatic light control system	Click here

PROCEDURE

PRECAUTION

Note

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
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

Note

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here
REMOVE JUNCTION BLOCK ASSEMBLY LH WITH MAIN BODY ECU

Click here
REMOVE FUEL PUMP CONTROL ECU
1. Disconnect the 2 fuel pump control ECU connectors.
2. Remove the 2 bolts and fuel pump control ECU.
  
  Note
  
  Do not reuse the fuel pump control ECU if it has been dropped or subjected to a severe impact.
  
  Tech Tips
  
  If a malfunction such as pump lock occurs and the fuel pump is damaged, excessive current may be continuously applied to the fuel pump control ECU, damaging its internal parts. Make sure to replace the fuel pump control ECU at the same time when replacing the fuel pump.
REMOVE FUEL PUMP CONTROL ECU BRACKET
1. Remove the 2 bolts and fuel pump control ECU bracket.