Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VIWT
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR: REMOVAL; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

REMOVAL

PROCEDURE

1. DRAIN BRAKE FLUID

NOTICE:

If brake fluid leaks onto any painted surface, immediately wash it off.

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page 2016 MY Sienna [12/2015 - 08/2016]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2017 MY Sienna [08/2016 - 11/2017]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION ).

3. REMOVE BRAKE ACTUATOR WITH BRACKET

(a) Disconnect the air conditioner pressure sensor connector and separate the harness clamp.

(b) Remove the bolt and separate the air conditioner tube and accessory assembly from the body.

NOTICE:

Do not damage the air conditioner tube and accessory assembly.

(c) Release the lock lever and disconnect the brake actuator connector.

NOTICE:

Be careful not to allow brake fluid to enter the removed connector.

(d) Separate the harness clamp from the brake actuator bracket assembly.

(e) Using union nut wrenches (10 mm and 12 mm), disconnect the 6 brake lines from the brake actuator with bracket.

Text in Illustration

Flare Nut A (10 mm)

Flare Nut B (12 mm)

(f) Use tags or make a memo to identify the places to reconnect.

Text in Illustration

*a

To front wheel cylinder RH

*b

To front wheel cylinder LH

*c

To rear wheel cylinder RH

*d

To rear wheel cylinder LH

*e

From 1st of master cylinder

*f

From 2nd of master cylinder

(g) Remove the bolt, 2 nuts and brake actuator with bracket from the body.

NOTICE:

Do not damage the brake lines or wire harness.

4. REMOVE BRAKE ACTUATOR ASSEMBLY

(a) Remove the 3 bolts and brake actuator assembly from the brake actuator bracket assembly.