1997 MAZDA MX-5 parking brake

3. Turn ignition off. Disconnect ABS CM connector. Measure voltage between terminals "A" and AB of
ABS CM harness connector. See Fig. 3
. Also, measure voltage between terminals "A" and AC of ABS
CM ha rness connector, and between terminals "A" and AM of ABS CM harness connector. If battery
voltage is present, go to next step. If battery voltage is not present, repair wiring harness.
4. Turn ignition off. Reconnect ABS CM connector. Drive vehicle and recheck ABS warning light. If ABS
warning light illuminates/goes out with vehicle stopped and during driving, replace ABS CM. If ABS
warning light does not illuminate/go out with vehicle stopped and during driving, a temporary poor
contact in wiring may have occurred and ABS is now functioning properly.
ABS WARNING LIGHT INDICATES NORMAL, BUT ABS DOES NOT OPERATE PROPERLY
Check for ABS DTCs. See RETRIEVING DIAGNOSTIC TROUBLE CODES
under DIAGNOSIS &
TESTING. If no DTCs are present, inspect mechanical system.
PRE-DIAGNOSIS INSPECTION
Visually inspect ABS components for possible cause of anti-lock problem. Visual inspection may help identify
cause of a simple malfunction. Ensure ABS warning light is functioning properly. See TROUBLE
SHOOTING .
ABS warning light illuminates under the following conditions:
Vehicle operated on snow or ice with parking brake activated, or a dragging brake at one wheel.
Different size tires being used.
Tires with different traction characteristics are used on same axle.
Vehicle is jacked up and drive wheels spin for 20 seconds or more with ignition on.
Low battery voltage.
If ABS warning light illuminates because of these conditions, turn ignition off, then back on. ABS warning light
will go out and no DTCs for described conditions will be stored in ABS control module memory.
DIAGNOSIS & TESTING
Diagnose ABS using New Generation Star (NGS) Tool (49-T088-0A0) and Adapter Harness (49-F066-002).
See RETRIEVING DIAGNOSTIC TROUBLE CODES
. On all models, test ABS control module using
DVOM and adapter harness. See ABS CONTROL MODULE under COMPONENT TESTING
.
If ABS test equipment is unavailable, test each component of ABS. See COMPONENT TESTING
. If all
ABS components test okay, replace ABS control module with a known-good module and retest system.
RETRIEVING DIAGNOSTIC TROUBLE CODES
Using New Generation Star (NGS) Tool
1. Turn ignition off. Connect New Generation Star (NGS) Tool (49-T088-0A0) to Data Link Connector

1997 Mazda MX-5 Miata
ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock
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Fig. 6: Testing ABS Control Module (3 Of 3)
Courtesy of MAZDA MOTORS CORP.
HYDRAULIC UNIT
On-Vehicle Inspection
1. Ensure all diagnostic trouble codes have been cleared and battery is fully charged. See CLEARING
CODES under DIAGNOSIS & TESTING. Turn ignition on and check if ABS warning light goes out
after 2-4 seconds. If ABS warning light remains illuminated, ABS control module has detected a failure
and will not activate hydraulic unit. See DIAGNOSIS & TESTING
.
2. Turn ignition off. Ensure vehicle is on level surface. Raise and support vehicle. Place transmission in
Neutral. Release parking brake. Rotate wheels by hand and check for brake drag. Connect a jumper wire
between TBS terminal and GND terminal of data link connector. See Fig. 1
. Depress brake pedal and
have an assistant attempt to rotate right front wheel. Wheel should not rotate.
3. With brake pedal still depressed, turn ignition on. Brake should be momentarily released (about .5
second) and wheel should turn when pressure reduction operates. Check operation of remaining wheels
using same procedure beginning with left front, right rear, then left rear wheels.
4. If all wheels operate as specified, the following systems are operating properly.
Brake piping to hydraulic unit.
Braking system, including hydraulic unit.
Hydraulic unit electrical system (solenoid, pump motor, etc.)

1997 Mazda MX-5 Miata
ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock
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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
ApplicationIn. (mm)
Miata.16-.28 (4-7)
ApplicationFt. Lbs. (N.m)
Brake Caliper Mounting Bolts37-50 (50-68)
Brakeline Nuts10-16 (14-22)
Hydraulic Unit Brakeline Union Bolts18-26 (24-35)
Hydraulic Unit Mounting Bolts/Nuts14-18 (19-24)
I-Arm-To-Rear Steering Knuckle Bolt (RX7)44-54 (59-73)
Lower Control Arm-To-Rear Steering Knuckle Nut47-54 (64-73)
Push Rod Lock Nut18-25 (24-34)
Stoplight Switch Lock Nut10-13 (14-18)
Wheel Bearing Lock Nut
Front123-159 (167-216)
Rear159-217 (216-294)
Wheel Lug Nuts66-86 (89-117)
Wheel Speed Sensor Mounting Bolt12-16 (16-22)
INCH Lbs. (N.m)
ABS Control Unit Mounting Bolts/Nuts61-87 (6.9-9.8)

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ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock
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1. Raise and support rear of vehicle. Remove rear wheel assemblies. If drums are installed on vehicle,
remove cover from adjusting hole at bottom of brake backing plate. Turn adjusting screw with a brake
adjusting tool until shoes drag against brake drum and lock drum.
2. When shoes are against drum, loosen adjusting screw an additional 10-12 notches so drum rotates freely.
If drum does not rotate freely, remove wheel and drum and vacuum dust and dirt from linings. Use
sandpaper and remove rust from points where shoes touch backing plate. Apply a light coating of
molybdenum grease to brake shoe-to-backing plate contact points. Install wheel and drum and adjust
shoes.
3. To adjust brakes with rear drums removed, first clean all rust and dirt on points where shoes touch
backing plate and apply a small amount of molybdenum grease to those areas. Using a brake shoe
adjustment gauge, measure inside diameter of drum braking surface.
4. Reverse tool and adjust brake shoes until they touch gauge. Gauge contact points on shoes must be
parallel to vehicle with center line through center of axle. Hold automatic adjusting lever out of
engagement while rotating adjusting screw to prevent burring screw slots. Ensure adjusting screw rotates
freely.
MX-3, MX-6, Protege & 626
Raise and support rear of vehicle. Remove rear wheel assemblies. Release parking brake. Remove brake drum.
Insert screwdriver between adjusting plate and quadrant. Twist screwdriver to disengage teeth. See Fig. 2
. Push
quadrant adjusting lever toward backing plate. Install brake drum. Operate parking brake a few times to reset
ad
juster. Adjust parking brake.

1997 Mazda MX-5 Miata
BRAKE SYSTEM 1995-97 BRAKES Mazda - Disc & Drum
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Fig. 2: Moving Quadrant On Rear Drum Brake Adjuster (MX-6 & 626 Shown; MX-3 & Protege Are
Similar)
Courtesy of MAZDA MOTORS CORP.
PARKING BRAKE SHOES ADJUSTMENT
Millenia, MPV & 929
1. Raise and support rear of vehicle. Remove rear wheel assemblies. Remove service plug from rotor. Insert
a screwdriver into service plug hole and turn adjuster in direction of arrow marked on rotor until rotor
will not turn.
2. On Millenia and MPV, rotate adjuster 3-5 notches in opposite direction. On 929, rotate adjuster 6-8
notches in opposite direction. On all models, ensure rotor rotates freely. Install service plug.
PARKING/EMERGENCY BRAKE
Miata, MX-3, MX-6, Protege & 626
NOTE: B2300, B3000 & B4000 are equipped with self-adjusting parking brake system.
Manual adjustment is not required.

1997 Mazda MX-5 Miata
BRAKE SYSTEM 1995-97 BRAKES Mazda - Disc & Drum
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1. On models with rear disc brakes, depress brake pedal several times. On models with rear drum brakes,
start engine and depress brake pedal several times while vehicle is moving in reverse. Stop engine.
2. On Miata, pull parking brake lever with a force of 44 lbs. (20 kg). On all other models, pull parking brake
lever with a force of 22 lbs. (10 kg). If stroke is 7-9 notches on Miata or 5-7 notches on all others, parking
brake is properly adjusted. If stroke is not as specified, raise and support rear of vehicle. Release parking
brake lever.
3. 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.
Millenia
1. Depress brake pedal several times. Pull parking brake lever with a force of 22 lbs. (10 kg). If stroke is 3-5
notches, parking brake is properly adjusted. If stroke is not 3-5 notches, raise and support rear of vehicle.
Release parking brake lever.
2. Remove parking brake lever cover. Rotate cable adjusting nut at lever end of cable until stroke is within
specification. Ensure rear brakes do not drag. Ensure parking brake warning light illuminates when brake
lever is pulled one notch.
MPV (1995-96)
1. Depress brake pedal several times. Pull parking brake lever with a force of 22 lbs. (10 kg). If stroke is 3-6
notches, parking brake is properly adjusted. If stroke is not as specified, raise and support rear of vehicle.
Release parking brake lever.
2. Remove adjusting nut clip and 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.
MPV (1997)
1. Depress brake pedal several times. Pull parking brake lever with a force of 44 lbs. (20 kg). If stroke is 6-9
notches, parking brake is properly adjusted. If stroke is not as specified, raise and support rear of vehicle.
Release parking brake lever.
2. Remove adjusting nut clip and 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.
RX7
1. Depress brake pedal several times. Pull parking brake lever with a force of 22 lbs. (10 kg). If stroke is 7-
10 notches, parking brake is properly adjusted. If stroke is not 7-10 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.

1997 Mazda MX-5 Miata
BRAKE SYSTEM 1995-97 BRAKES Mazda - Disc & Drum
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929
1. Depress brake pedal several times. Depress parking brake pedal several times with a force of 44 lbs. (20
kg). If stroke is 5-7 notches, parking brake is properly adjusted. If stroke is not 5-7 notches, rotate
adjusting nut, located under parking brake pedal, until stroke is within specification.
2. Ensure rear brakes do not drag. Ensure parking brake warning light illuminates when brake pedal is
depressed one notch.
BRAKE PEDAL FREE PLAY
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
. 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
BRAKE PEDAL HEIGHT & STOPLIGHT SWITCH
Miata, MPV, MX-3, MX-6, RX7, 626 & 929
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 obtained. See
BRAKE PEDAL HEIGHT SPECIFICATIONS
.
2. Adjust pedal free play. See BRAKE PEDAL FREE PLAY
. Tighten push rod lock nut to 18-25 ft. lbs.
(24-34 N.m).
3. Rotate stoplight switch until it contacts pedal and then rotate an additional 1/2 turn. Tighten stoplight
switch lock nut 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 132 lbs. (60 kg) pressure.
5. Measure applied pedal hei
ght. See BRAKE PEDAL HEIGHT SPECIFICATIONS . If distance is not NOTE: On B2300, B3000 & B4000, brake pedal free play is built into pedal linkage and
is not adjustable.
ApplicationIn. (mm)
Miata, MPV & MX-3.16-.28 (4-7)
Millenia, MX-6, Protege & 626.16-.47 (4-12)
RX7.12-.31 (3-8)
929.12-.47 (8-12)
NOTE: B2300, B3000 & B4000 are equipped with dual brake master cylinder and
vacuum booster. System is designed to permit full stroke of master cylinder
when brake pedal is fully depressed. Brake pedal height adjustment is not
required.

1997 Mazda MX-5 Miata
BRAKE SYSTEM 1995-97 BRAKES Mazda - Disc & Drum
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Fig. 13: Exploded View Of Rear Disc Brake Assembly (MX-3)
Courtesy of MAZDA MOTORS CORP.
Removal & Installation (MX-6 & 626)
1. Raise and support rear of vehicle. Remove rear wheel assemblies. Release parking brake and disconnect
parking brake cable from caliper. Remove manual adjustment gear concealment plug from caliper. See
Fig. 11
. Insert an appropriate size Allen wrench through hole and turn manual adjustment gear
counterclockwise to retract caliper piston.
2. Remove upper guide bolt from caliper. Rotate caliper downward and support using wire. Remove "M"
springs. Remove pads, shims and guide plates. Replace pad if lining thickness is less than .04" (1.0 mm).
3. To install, reverse removal procedure. Turn manual adjustment gear clockwise until brake pads slightly
touch rotor. Turn manual ad
justment gear back 1/3 turn.

1997 Mazda MX-5 Miata
BRAKE SYSTEM 1995-97 BRAKES Mazda - Disc & Drum
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