VSA Modulator-Control Unit Removal and Installation

NOTE:
Review the Service Precautions before doing repairs or service.
Do not damage or drop the VSA modulator-control unit as it is sensitive.
Do not use power tools when removing the VSA modulator-control unit.
When replacing the VSA modulator-control unit, do the immobilizer system registration.

1. 12 Volt Battery Terminal - Disconnect
1.
Open the driver's door, and wait 3 minutes or more.
NOTE: Do not turn the vehicle to the ON mode.


2. VSA Modulator-Control Unit - Remove
1.
Disconnect the 10 mm brake lines (A).
NOTE: Before disconnecting the brake lines from the VSA modulator, mark them or make note of their original location.
2.
Disconnect the 12 mm brake lines (B).
3.
Disconnect the connector (A) by pushing the lock (B) and pulling up the lever (C); the connector disconnects itself.
4.
Remove the brake line (A) from the brake line clamp (B).
5.
Remove the VSA modulator-control unit (C) with the bracket (D).

3. VSA Modulator-Control Unit Bracket - Remove
1.
Remove the modulator bracket (A) from the modulator sub bracket (B).
2.
Remove the VSA modulator-control unit (C) from the modulator sub bracket.


NOTE:
How to read the torque specifications.
Review the Service Precautions before doing repairs or service.
Do not damage or drop the VSA modulator-control unit as it is sensitive.
Do not use power tools when installing the VSA modulator-control unit.
When replacing the VSA modulator-control unit, do the immobilizer system registration.

1. VSA Modulator-Control Unit Bracket - Install
1.
Install the VSA modulator-control unit (A) to the modulator sub bracket (B).
2.
Install the modulator bracket (C) to the modulator sub bracket.

2. VSA Modulator-Control Unit - Install
1.
Install the VSA modulator-control unit (A) with the bracket (B).
2.
Install the brake line (C) to the brake line clamp (D).
3.
Align the connecting surface of the VSA modulator-control unit connector (A).
4.
Pull down the lever (B) of the VSA modulator-control unit connector, then confirm the connector is fully seated.
5.
Connect the brake lines.
NOTE: Brake lines are connected to the master cylinder (A), the right-rear (B), the left-front (C), the right-front (D), and the left-rear (E) brake systems.

5. Immobilizer System - Register

NOTE:
When replacing the VSA modulator-control unit, do the immobilizer system registration.
Failure to complete the immobilizer system registration will lead to a no-start condition the next time the 12 volt battery is disconnected.


Without keyless access system



6. VSA Modulator-Control Unit Software - Check
1.
Make sure the VSA modulator-control unit has the latest software. If it does not have the latest, update the software in the VSA modulator-control unit.

7. VSA Modulator-Control Unit After Install - Check
1.
Turn the vehicle to the ON mode.
2.
Apply and release the parking brake 2 times, then make sure that the brake system indicator (red) goes OFF.
NOTE: If the brake system indicator (red) does not go OFF, check for poor connection at the VSA modulator-control unit connector.
3.
Turn the vehicle to the OFF (LOCK) mode.