Toyota Corolla Cross: Brake Actuator Operation Sound is Loud during Initial Check
PROCEDURE
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1. |
PERFORM ROAD TEST |
(a) After turning the ignition switch to ON, compare the operating sound of the brake actuator the first time the vehicle speed reaches 45 km/h (28 mph) with a known good vehicle of the same model.
OK:
The operating sound is the same or quieter than that of a known good vehicle of the same model.
HINT:
When the vehicle speed reaches approximately 40 km/h (25 mph), the initial check of the brake actuator assembly is performed and pump motor operation sounds are generated.
| OK | .gif)
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END |
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2. |
CHECK BRAKE ACTUATOR BRACKET CUSHION |
(a) Check that the cushion of the brake actuator bracket assembly is not worn, damaged or deformed.
OK:
The brake actuator bracket assembly is not worn, damaged or deformed.
| NG |
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REPLACE BRAKE ACTUATOR BRACKET CUSHION |
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3. |
ADJUST INSTALLATION OF BRAKE ACTUATOR ASSEMBLY |
(a) Drain the brake fluid.
(b) Disconnect all brake lines from the brake actuator assembly.
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(c) Connect each brake line so that the cushion of the brake actuator assembly is tensioned evenly.
Click here
NOTICE:
After connecting all the brake lines, add brake fluid and bleed the brake system.
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HINT:
By reducing the tension on the brake lines and cushion, the operating sound of the brake actuator assembly may be reduced.
(d) Check that no brake lines interfere the vehicle body or other components.
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4. |
RECHECK SYMPTOM |
(a) Perform a road test and check the magnitude of the operating sound again.
OK:
The operating sound is the same or quieter than that of a known good vehicle of the same model.
| OK |
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END |
| NG |
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REPLACE BRAKE ACTUATOR ASSEMBLY |
READ NEXT:
VSC OFF Switch Circuit
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected
to the combination meter assembly via CAN communication.
Pressing the VSC OFF switch (combination switch assembly) turns
o
Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY
TERMINAL
NOTICE:
After the ignition switch is turned off, there may be a waiting
time before disconnecting the nega
SEE MORE:
Brake Pressure Control Solenoid "C" Control Circuit Short to Battery (C14F112,...,C14FA49)
DESCRIPTION
The ABS solenoid relay and reservoir cut solenoid valves are
built into the brake actuator assembly.
When the brakes are operating, the reservoir cut solenoid valves
supply brake fluid from the brake master cylinder reservoir assembly to the pump
motor as necessary.
When this DT
Removal
REMOVAL
CAUTION / NOTICE / HINT
COMPONENTS (REMOVAL)
Procedure
Part Name Code
1
REAR WHEELS
-
-
-
-
2
REAR STABILIZER BAR
48812
