CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake booster with master cylinder assembly removal/installation are shown below.
Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
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Auxiliary battery terminal is disconnected/reconnected | Memorize steering angle neutral point | Lane departure alert system (w/ Steering Control) | |
Intelligent clearance sonar system | |||
Simple intelligent parking assist system | |||
Pre-crash safety system | |||
Adaptive high beam system | |||
Parking assist monitor system | |||
Initialize back door lock | Power door lock control system | ||
Replacement of brake booster with master cylinder assembly |
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Click here for Initialization Click here for Calibration |
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CAUTION / NOTICE / HINT
Note
While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.
PROCEDURE
PRECAUTION
Note
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY
REMOVE NO. 2 HEATER AIR DUCT SPLASH SHIELD SEAL
REMOVE WATER GUARD PLATE
REMOVE COWL BODY MOUNTING REINFORCEMENT LH
REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY
PERFORM ACCUMULATOR PRESSURE ZERO DOWN
Using the GTS, perform the accumulator pressure zero down.
Connect the GTS to the DLC3 with the power switch off.
Turn the power switch on (IG).
Turn the GTS on and enter the following menus: Chassis / ABS/VSC/TRC / Utility / ECB (Electronically Controlled Brake system) Utility.
Tester Display |
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ECB Utility |
Select "Motor Invalid" on the "ECB (Electronically Controlled Brake system) Utility" screen.
Perform "Motor Invalid" according to the display on the GTS.
Enter the following menus: Chassis / ABS/VSC/TRC / Utility / ECB (Electronically Controlled Brake system) Utility.
Tester Display |
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ECB Utility |
Select "ECB (Electronically Controlled Brake system) Invalid" on the "ECB (Electronically Controlled Brake system) Utility" screen.
Perform "ECB (Electronically Controlled Brake system) Invalid" according to the display on the GTS.
Depress the brake pedal 40 times or more to return all the fluid in the accumulator back to the reservoir.
Tech Tips
A buzzer may sound due to low accumulator pressure. As this is not a malfunction, continue the procedure.
Check that the brake pedal is firm.
Note
If the brake pedal is not firm or the pump motor continues to operate even after depressing the brake pedal 40 times or more, the accumulator pressure zero down is not complete.
Turn the GTS off and turn the power switch off.
Disconnect the GTS from the DLC3.
Disconnect the cable from the negative (-) auxiliary battery terminal.
When the accumulator pressure zero down could not be performed using the GTS.
Note
If DTCs are output, accumulator pressure zero down may not be complete. In this case, perform the following procedure.
Release the lock lever | |
Disconnect the connector |
With the power switch off, release the lock lever and disconnect the brake booster pump assembly connector as shown in the illustration.
Depress the brake pedal 40 times or more to return all the fluid in the accumulator back to the reservoir.
Check that the brake pedal is firm.
Note
If the brake pedal is not firm or the pump motor continues to operate even after depressing the brake pedal 40 times or more, the accumulator pressure zero down is not complete.
Disconnect the cable from the negative (-) auxiliary battery terminal.
DRAIN BRAKE FLUID
Note
If brake fluid leaks onto any painted surface, immediately wash it off.
REMOVE ENGINE ROOM MAIN WIRE
Disconnect the connector from the brake booster with master cylinder assembly.
*a | Lock Lever |
*b | Lock Arm |
*c | Push |
Release the lock lever |
Push the lock arm of the connector to release the lock and rotate the lock lever to the position shown in the illustration.
*a | Screwdriver Insertion Point |
*b | Pre-lock |
Disconnect the connector |
Using a screwdriver, release the pre-lock and disconnect the connector from the brake booster with master cylinder assembly as shown in the illustration.
Disengage the clamp to separate the engine room main wire.
DISCONNECT NO. 2 BRAKE ACTUATOR HOSE
Slide the clip and disconnect the No. 2 brake actuator hose from the brake booster with master cylinder assembly.
SEPARATE NO. 1 BRAKE ACTUATOR TUBE
Remove the nut and separate the No. 1 brake actuator tube from the vehicle body.
DISCONNECT BRAKE LINE
Using a union nut wrench, disconnect the 3 brake lines from the brake booster with master cylinder assembly.
Note
Do not kink or damage the brake lines.
Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.
REMOVE FRONT DOOR SCUFF PLATE RH
REMOVE COWL SIDE TRIM BOARD RH
REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
REMOVE BRAKE PEDAL RETURN SPRING
REMOVE PUSH ROD PIN
REMOVE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY
*a | Skid Control ECU |
*b | No. 1 Reservoir Hose |
*c | Brake Master Cylinder Push Rod Clevis |
*d | Boot |
*e | Master Cylinder Reservoir Assembly |
*f | Brake Actuator Bracket |
Remove the 4 nuts and brake booster with master cylinder assembly.
Note
Do not kink or damage the brake lines.
Do not carry the brake booster with master cylinder assembly by the parts shown in the illustration.
Be careful not to allow any brake fluid to enter the connector.
REMOVE BRAKE MASTER CYLINDER GASKET