Mazda MX-5 Miata (1997+). Manual — part 12

Fig. 15: Adjusting Master Cylinder Push Rod
Courtesy of MAZDA MOTORS CORP.

BRAKE PEDAL HEIGHT & STOPLIGHT SWITCH

1. Released pedal height is measured from carpet surface, on vertical portion of firewall, to pedal pad center.

Disconnect stoplight switch electrical connector. Loosen lock nut on stoplight switch. Rotate switch away
from pedal. Loosen push rod lock nut. Rotate push rod until correct pedal height is as specified. See
BRAKE PEDAL HEIGHT SPECIFICATIONS table.

2. Adjust pedal free play. See BRAKE PEDAL FREE PLAY under ADJUSTMENTS. Tighten push rod

lock nut. Tighten push rod lock nut to 18-25 ft. lbs. (24-34 N.m).

3. Rotate stoplight switch until it contacts pedal, then rotate an additional 1/2 turn. Tighten stoplight switch

lock nut to 10-13 ft. lbs. (14-18 N.m). Reconnect stoplight switch electrical connector.

4. Applied pedal height is measured from angled portion of firewall (without carpet) to pedal pad center.

Start engine. Depress brake pedal with a pressure of 132 lbs. (60 kg).

5. Measure applied pedal height. See BRAKE PEDAL HEIGHT SPECIFICATIONS table. If distance is

not as specified, check for air in system or worn pads. Repair as necessary.

BRAKE PEDAL HEIGHT SPECIFICATIONS

BRAKE PEDAL FREE PLAY

Application

In. (mm)

Pedal Released

6.8-7.1 (171-181)

Pedal Applied

(1)

3.7 (95)

(1)

Minimum height.

1997 Mazda MX-5 Miata

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

With engine off, depress pedal a few times to eliminate vacuum. Depress brake pedal by hand and check pedal
free play. See BRAKE PEDAL FREE PLAY SPECIFICATIONS table. Adjust play by loosening push rod
lock nut. Turn push rod until correct free play is obtained. Tighten push rod lock nut to 18-25 ft. lbs. (24-34
N.m).

BRAKE PEDAL FREE PLAY SPECIFICATIONS

PARKING/EMERGENCY BRAKE

1. Depress brake pedal several times. Pull parking brake lever with a force of 44 lbs. (20 kg). If stroke is 7-9

notches, parking brake is properly adjusted. If stroke is not 7-9 notches, raise and support rear of vehicle.
Release parking brake lever.

2. Rotate cable adjusting nut at lever end of cable, located under console cover, until stroke is within

specification. Ensure rear brakes do not drag. Ensure parking brake warning light illuminates when brake
lever is pulled one notch.

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

WIRING DIAGRAMS

Application

In. (mm)

Miata

.16-.28 (4-7)

Application

Ft. Lbs. (N.m)

Brake Caliper Mounting Bolts

37-50 (50-68)

Brakeline Nuts

10-16 (14-22)

Hydraulic Unit Brakeline Union Bolts

18-26 (24-35)

Hydraulic Unit Mounting Bolts/Nuts

14-18 (19-24)

I-Arm-To-Rear Steering Knuckle Bolt (RX7)

44-54 (59-73)

Lower Control Arm-To-Rear Steering Knuckle Nut

47-54 (64-73)

Push Rod Lock Nut

18-25 (24-34)

Stoplight Switch Lock Nut

10-13 (14-18)

Wheel Bearing Lock Nut

Front

123-159 (167-216)

Rear

159-217 (216-294)

Wheel Lug Nuts

66-86 (89-117)

Wheel Speed Sensor Mounting Bolt

12-16 (16-22)

INCH Lbs. (N.m)

ABS Control Unit Mounting Bolts/Nuts

61-87 (6.9-9.8)

1997 Mazda MX-5 Miata

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

1997 Mazda MX-5 Miata

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

Fig. 16: Anti-Lock Brake System (ABS) Wiring Diagram (1997 Miata)

1997 Mazda MX-5 Miata

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock