Brake

030Q4-01

SERVICE DATA

030Q4-01

Brake pedal height (from asphalt sheet)

A/T

134.9 - 144.9 mm (5.311 - 5.703 in.) 136.0 - 146.0 mm (5.353 - 5.747 in.)

Brake Pedal free play

1 - 6 mm (0.04 - 0.24 in.)

Stop light switch clearance

0.5 - 2.4 mm (0.020 - 0.094 in.)

Pedal reserve distance from asphalt sheet at 490 N (50 kgf, 110.2 lbf)

More than 70 mm (2.76 in.)

Brake booster push rod to piston clearance (w/ SST)

0 mm (0 in.)

Front brake pad thickness

Standard Minimum

11.0 mm (0.433 in.) 1.0 mm (0.039 in.)

Front brake disc thickness

Standard Minimum

25.0 mm (0.984 in.) 23.0 mm (0.906 in.)

Front brake disc runout

Maximum

0.05 mm (0.0020 in.)

Rear brake drum inside diameter

Standard Maximum

200.0 mm (7.874 in.) 201.0 mm (7.913 in.)

Rear brake shoe lining thickness

Standard Maximum

4.4 mm (0.173 in.) 1.0 mm (0.039 in.)

_SERVICE SPECIFICATIONS - BRAKE_

030Q5-01

TORQUE SPECIFICATION

_SERVICE SPECIFICATIONS - BRAKE_

030Q5-01

Part Tightened

Nm

kgfcm

ftlbf

Bleeder plug

8.3

85

74 in.lbf

Brake booster clevis lock nut

26

265

19

Brake pedal support sub-assy x Brake pedal sub-assy

36.8

375

27

Brake booster x Body

12.7

130

9

Brake pedal support sub-assy x Body

23.6

240

17

Brake master cylinder x Piston stopper bolt

10

102

7

Brake master cylinder x Reservoir

1.8

18.4

15.9 in.lbf

Brake master cylinder x Brake booster

12.5

127

9

Brake line union nut

15.2

155

11

Wheel nut

103

1,050

76

Cruise control actuator bracket x Body

43

438

32

Front brake cylinder mounting x Steering knuckle

106.8

1,089

79

Front brake cylinder x Front brake cylinder mounting

34.3

350

25

Front disc brake caliper x Flexible hose

29

296

21

Rear drum brake wheel cylinder x Backing plate

10

102

7

Proportioning valve assy x Body

5.4

55

48 in.lbf

Brake actuator assy x Actuator bracket

4.7

48

42 in.lbf

Brake actuator bracket x Body

19

194

14

Front speed sensor x Steering knuckle

8.0

82

71 in.lbf

Front speed sensor wire harness clamp x Shock absorber

29

296

21

Front speed sensor wire harness clamp x Body

8.0

82

71 in.lbf

_DIAGNOSTICS - ABS WITH EBD SYSTEM (April, 2003)

DTC

C1251/51

PUMP MOTOR IS LOCKED/OPEN CIRCUIT IN PUMP MOTOR GROUND

CIRCUIT DESCRIPTION

DTC No.

DTC Detecting Condition

Trouble Area

C1251/51

ABS actuator pump motor is not operating normally during initial check.

ABS pump motor

WIRING DIAGRAM

Ebd System

C96169

DIAGNOSTICS - ABS WITH EBD SYSTEM (April, 2003)

INSPECTION PROCEDURE

HINT:

Start the inspection from step 1 in case of using the hand-held tester and start from step 2 in case of not using hand-held tester.

INSPECT BRAKE ACTUATOR ASSY

(a) Select the DATALIST mode on the hand-held tester.

(b) Check the operation sound of the ABS pump motor when operating it with the hand-held tester. OK:

The operation sound of the ABS pump motor should be heard.

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE

2 INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(+BM TERMINAL VOLTAGE)

2011 Toyota Corolla Skid Control Ecu

(a) Disconnect the skid control ECU connector.

(b) Measure the voltage between terminal +BM (24) and GND (23) of skid control ECU harness side connector. OK:

The operation sound of the ABS pump motor should be heard.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE BRAKE ACTUATOR ASSY

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