Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Installation

INSTALLATION

PROCEDURE

1. INSTALL AIRBAG ECU ASSEMBLY

(a) Check that the engine switch (for Gasoline Model) or power switch (for HV Model) is off.

(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(c) Install the airbag ECU assembly with the 3 bolts. Torque: 17.5 N·m {178 kgf·cm, 13 ft·lbf} NOTICE: Temporarily tighten the 2 bolts in the order of (A), (B) and then fully tighten the 3 bolts in the order of (C), (A) and (B). If the airbag ECU assembly has been dropped, or there are any cracks, dents or other defects in the case or connector, replace it with a new one. When installing the airbag ECU assembly, make sure that the wire harness does not interfere with other parts and is not pinched. When the engine switch (for Gasoline Model) or power switch (for HV Model) is first turned on (IG) after the airbag ECU assembly has been replaced, make sure that no one is in the vehicle.

(d) Temporarily connect the connector and then move the lock lever in the direction indicated by the arrow to securely connect the connectors.

NOTICE:

When connecting any airbag connector, take care not to damage the airbag wire harness.

*a	Lock Lever
	Move in this Direction

(e) Check that there is no looseness in the installed parts of the airbag ECU assembly.

2. INSTALL NO. 1 CONSOLE BOX DUCT

(a) Install the No. 1 console box duct with the clip as shown in the illustration.

Install in this Direction

3. INSTALL FRONT FLOOR CARPET ASSEMBLY

(a) Install the front floor carpet assembly to its original position as shown in the illustration.

(b) Engage the 2 guides.

(c) Install the 3 front floor carpet clips.

(d) Install the front floor carpet assembly to its original position as shown in the illustration.

(e) Engage the 2 guides.

(f) Install the 3 front floor carpet clips.

4. INSTALL ACCELERATOR PEDAL

for 2GR-FKS: Click here

for A25A-FXS: Click here

5. INSTALL ACCELERATOR PEDAL PAD

for 2GR-FKS: Click here

for A25A-FXS: Click here

6. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

7. INSTALL CENTER PILLAR LOWER GARNISH LH

Click here

8. CONNECT REAR DOOR OPENING TRIM WEATHERSTRIP LH

9. INSTALL REAR DOOR SCUFF PLATE LH (for Gasoline Model)

Click here

10. INSTALL REAR DOOR SCUFF PLATE LH (for HV Model)

Click here

11. CONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP LH

12. INSTALL COWL SIDE TRIM SUB-ASSEMBLY LH

Click here

13. INSTALL FRONT DOOR SCUFF PLATE LH

Click here

14. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

15. INSTALL CENTER PILLAR LOWER GARNISH RH

HINT:

Use the same procedure as for the LH side.

Click here

16. CONNECT REAR DOOR OPENING TRIM WEATHERSTRIP RH

17. INSTALL REAR DOOR SCUFF PLATE RH (for Gasoline Model)

HINT:

Use the same procedure as for the LH side.

Click here

18. INSTALL REAR DOOR SCUFF PLATE RH (for HV Model)

HINT:

Use the same procedure as for the LH side.

Click here

19. CONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP RH

20. INSTALL COWL SIDE TRIM SUB-ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

Click here

21. INSTALL FRONT DOOR SCUFF PLATE RH

HINT:

Use the same procedure as for the LH side.

Click here

22. INSTALL REAR SEAT CUSHION LOCK HOOK (for Gasoline Model)

Click here

23. INSTALL REAR SEAT CUSHION ASSEMBLY (for Gasoline Model)

Click here

24. CONNECT REAR CENTER SEAT OUTER BELT ASSEMBLY (for Gasoline Model)

Click here

25. INSTALL CONSOLE ASSEMBLY

Click here

26. INSTALL FRONT SEAT ASSEMBLY

(a) Install the front seat assembly LH and front seat assembly RH.

Click here

27. PERFORM DIAGNOSTIC SYSTEM CHECK

for Gasoline Model: Click here

for HV Model: Click here

28. PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION

(a) When the airbag ECU assembly is replaced, perform zero point learning for the yaw rate and acceleration sensor.

for Gasoline Model: Click here

for HV Model: Click here

HINT:

The yaw rate and acceleration sensor is built into the airbag ECU assembly.