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 central gateway ECU (network gateway ECU) removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model)
CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.  Click here
CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing. Click here
PROCEDURE 1. REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY Click here 2. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY Click here 3. REMOVE ECU INTEGRATION BOX RH (a) Disconnect each connector. (b) Disengage the 2 clamps. 
(c) Remove the nut, bolt and ECU integration box RH. 4. REMOVE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) (a) Disengage the 2 claws and remove the central gateway ECU (network gateway ECU) as shown in the illustration. 
NOTICE:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Tire Pressure Warning System(for Gasoline Model): Transmitter ID not Received (Main) (C2126)
DESCRIPTION If ID registration via the automatic ID registration function is canceled or the tire pressure warning ECU and receiver does not receive data from the tire pressure warning valve and transmitters after the tire pressure warning valve and transmitter ID registration is completed using the ...
