Network Gateway Ecu: Replacement

HINT:

• See LOCATION 
• Installation is in the reverse order of removal.

1. TABLE OF BOLT, SCREW AND NUT (SEE  REPLACEMENT  ) 
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL (SEE  PRECAUTION  ) 

   Wait for 90 seconds after disconnecting the cable to prevent the airbag working.

3. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSY W/FRONT PASSENGER AIRBAG ASSY (SEE REPLACEMENT )

   HINT:

   Refer to the procedures up to the removal of the instrument panel safety pad sub-assy w/front passenger airbag assy.

4. REMOVE NETWORK GATEWAY ECU 
   1. Disconnect the connector.
   2. Disengage the 2 claw and remove the ECU aggregation cover No.1.
      Fig 1: Disengaging Claw & Removing ECU Aggregation Cover No. 1

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Remove the network gateway ECU assy as shown in the illustration.
      Fig 2: Removing Network Gateway ECU Assy

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. INSTALL INSTRUMENT PANEL SAFETY PAD SUB-ASSY W/FRONT PASSENGER AIRBAG ASSY (SEE  REPLACEMENT  ) 
6. CENTER SPIRAL CABLE (SEE  REPLACEMENT  ) 
7. INSTALL STEERING WHEEL ASSY (SEE  OVERHAUL  ) 
8. INSTALL HORN BUTTON ASSY (SEE  REPLACEMENT  ) 
9. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
10. PERFORM INITIALIZATION (SEE  INITIALIZATION  ) 

    Some systems need initialization when disconnecting the cable from the negative battery terminal.

11. INSPECT HORN BUTTON ASSY (SEE  REPLACEMENT  ) 
12. INSPECT SRS WARNING LIGHT (SEE  DIAGNOSIS SYSTEM  )