RM38N0EC _54 Brake _111814 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0503031 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) G

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  ON-VEHICLE INSPECTION  


PROCEDURE

Hide 1. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK

a.

When the ignition switch is turned to ON, check that the ABS warning light, brake system warning light (red indicator), slip indicator light, VSC OFF indicator light, brake hold standby indicator light and brake hold operated indicator light come on for approximately 3 seconds.

HINT:

If the warning lights and indicator lights does not illuminate or illuminates for more than approximately 3 seconds, perform troubleshooting for the electronically controlled brake system.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING



Hide 47220D 2.INSPECT BRAKE MASTER CYLINDER RESERVOIR ASSEMBLY

Pre-procedure1

a.

Remove the brake master cylinder reservoir filler cap assembly.


b.

Disconnect the brake fluid level warning switch (brake master cylinder reservoir assembly) connector.


Procedure1

c.
C230719C74
0.385,1.625 0.781,1.958 0.396,0.333 0.365,0.302 0.594,0.49 0.229,0.188 10 false *a 0.5,1.719 0.729,1.906 0.229,0.188 10 false A1
*a Component without harness connected
(Brake Fluid Level Warning Switch (Brake Master Cylinder Reservoir Assembly))


Measure the resistance according to the value(s) in the table below.

HINT:

A float is located inside the reservoir. Its position changes according to the brake fluid level.


Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A1)Location & Routing

Click Connector(A1)Engine Compartment>Engine Room Main Wire / Transmission Wire>Brake Master Cylinder Sub-Assembly

A1-1 - A1-2 Switch off (float up) 10 kΩ or higher
A1-1 - A1-2 Switch on (float down) Below 1 Ω



Post-procedure1

d.

If there is no problem after finishing the above check, adjust the brake fluid level to the MAX level.


Hide 47110 3.INSPECT BRAKE PEDAL SUPPORT ASSEMBLY

Pre-procedure1

a.

Disconnect the brake pedal load sensing switch (brake pedal support assembly) connector.


Procedure1

b.
C436087C06
0.594,0.792 0.969,1.104 0.375,0.313 0.094,0.083 0.49,0.417 0.396,0.333 10 false *a 0.667,0.875 1.063,1.208 0.396,0.333 10 false A84
*a Component without harness connected
(Brake Pedal Load Sensing Switch (Brake Pedal Support Assembly))


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A84)Location & Routing

Click Connector(A84)Instrument Panel>Engine Room Main Wire>Brake Pedal Support Assembly

A84-1 - A84-2 Brake pedal load sensing switch on (Brake pedal released) 203 to 223 Ω
A84-1 - A84-2 Brake pedal load sensing switch off (Brake pedal depressed) 950 to 1050 Ω


If the result is not as specified, replace the brake pedal load sensing switch (brake pedal support assembly).

NOTICE:

Do not remove the brake pedal load sensing switch from the brake pedal support assembly.



Post-procedure1

c.

None


Hide 44610 4.INSPECT BRAKE BOOSTER ASSEMBLY

a.

Airtightness check

i.
C132722C03
2.438,0.146 2.896,0.552 0.458,0.406 10 *b 0.635,1.719 1.51,2.063 0.875,0.344 10 *c 0.885,1.625 1.51,1.917 0.625,0.292 10 *d 1.104,1.5 1.604,1.74 0.5,0.24 10 *e 0.802,0.146 1.385,0.458 0.583,0.313 10 *a
*a Correct
*b Incorrect
*c 1st
*d 2nd
*e 3rd


Start the engine and stop it after 1 or 2 minutes. Slowly depress the brake pedal several times.

HINT:

If the brake pedal can be depressed nearly to the floor the first time, but on the 2nd and 3rd time cannot be depressed as far, the brake booster assembly is airtight.



ii.

Depress the brake pedal with the engine running, and stop the engine with the brake pedal depressed.

HINT:

If there is no change in the brake pedal reserve distance while holding the brake pedal depressed for 30 seconds, the brake booster assembly is airtight.




b.

Operation check

i.
C128542

Depress the brake pedal several times with the ignition switch off and check that there is no change in the brake pedal reserve distance when the brake pedal is depressed.


ii.
C128543

Depress and hold the brake pedal, then start the engine.

HINT:

If the brake pedal goes down slightly, operation is normal.