Rear brake MAZDA 626 1987 Owners Manual

ANTI-LOCK BRAKE SYSTEM (ABS) 1 1
86U11X-190
86U11X-191
76G11X098
Inspection of Pressure Reduction
1. Check that the battery is fully charged.
2. Jack up the vehicle and support it with safety
stands.
3. Release the parking brake.
4. Check the wheel for brake drag while turning it by
hand.
5. Connect terminal wires (GB) and (B) of the check
connector with a jumper wire.
6. Have an assistant depress the brake pedal; then
verify that the wheel cannot be turned.
7. Run the engine for 10 sec, and stop it.
8. With the brake pedal depressed, turn the ignition
switch ON.
9. With the brake pedal still depressed, check that the
wheel can be turned intermittently (when pressure-
reduction is operating).
Right'F Left F Rear Pressure reduction
Ignition switch ON OFF
1 05 1 sec sec sec
J
10. Check operation at the remaining wheels.
11. If not operated correctly, check the warning light
and brake light switch circuit for proper operation.
Inspection of Proportioning Valve
Note
The proportioning valve is built into the hy-
draulic unit.
1. Disconnect the flexible hose from the brake pipe;
then connect one pressure gauge to the front brake
pipe, the other to the rear brake pipe.
Note
Use a pressure gauge [9,810 kPa (100 kg/cm2,
1,422 psi)].
86U11X-193
11—95

1 1 ANTI-LOCK BRAKE SYSTEM (ABS)
t
2. Bleed air from the system.
3. Depress the brake pedal, and compare the fluid
pressure of the front brake with that of the rear
brake.
Fluid pressure kPa (kg/cm2, psi)

Front brake side Rear brake side
A 2,943 (30,427)
A'
2,747-3,139
(28-32, 398-455)

A B
B 6,867 (70,995)
B'
3,924-4,316 (40-44, 569-626)

Front brake pressure kPa (kg/cm2, psi) 4. If the measurement is not within specification re-
place the hydraulic unit assembly. 86U11X-194
REMOVAL
Caution
a) Brake fluid will damage painted surfaces. If it does get on the painted surfaces, wipe
it off immediately.
b) Oo not tip the hydraulic unit to prevent the brake fluid in the reservoir from draining.
1. Remove the nuts mounting the fuel filter and ignitor to the bracket and move them toward the engine.
2. Remove the air cleaner assembly.
3. Remove the master cylinder. (Refer to page 11—14.)
4. Remove the hydraulic unit in the sequence shown in the figure.
76G11X-062
11—96

ANTI-LOCK BRAKE SYSTEM (ABS) 1 1
86U11X-196
1. Coupler
2. Brake pipe (from master cylinder)
3. Brake pipe (to front brakes)
4. Brake pipe (to rear brakes)
5. Mount bushing
6. Hydraulic unit
11—97

ANTI-LOCK BRAKE SYSTEM (ABS) 1 1
CONTROL UNIT CIRCUIT
Inspection of Control Unit Circuit
1. Start the engine, and run it for 10 seconds.
2. Disconnect the connectors from the control unit. Check the connector at the harness side as shown
in the table below.
Terminal Connection or measured item Check item Tester connection Condition Voltage or
resistance

Q-01 11 -pins
2A (W),
2B (R)
Wheel speed sensor
Left front Voltage (AC) 2A (W)
- 2B
(R) Turn wheel
1
revolution
per second More than 0.25V (AC)
Q-01 11 -pins
2A (W),
2B (R)
Wheel speed sensor
Left front
Resistance
2A (W)
- 2B
(R)

—
800-1.2000
Q-01 11 -pins
2C (Y),
2D
(0)
Wheel speed sensor
Right front Voltage (AC) 2C (Y)
-
2D (0) Turn wheel
1
revolution
per second More than 0.25V (AC)
Q-01 11 -pins
2C (Y),
2D
(0)
Wheel speed sensor
Right front
Resistance
2C (Y)
-
2D (0)

—
800-1,2000
Q-01 11 -pins 2E (YG),
2F (YL)
Wheel speed sensor
Left rear Voltage (AC) 2E (YG)
- 2F
(YL) Turn wheel
1
revolution
per second More than 0.25V (AC) Q-01 11 -pins 2E (YG),
2F (YL)
Wheel speed sensor
Left rear
Resistance
2E (YG)
- 2F
(YL)

—
800-1,200G
Q-01 11 -pins
2H (G).
2J
(L)

Wheel speed sensor
Right rear Voltage (AC) 2H (G)
- 2J
(GR)
Turn wheel
1
revolution
per second More than 0.25V (AC)
Q-01 11 -pins
2H (G).
2J
(L)

Wheel speed sensor
Right rear
Resistance
2H (G)
- 2J
(GR)

_
800-1,200fl
Q-01 11 -pins
21 (GR) Low pressure switch Continuity 21 (GR)
-
Ground
—
Continuity
Q-01 11 -pins
2K (LB) High pressure switch Continuity 2K (LB)
-
Ground
—
Continuity
Q-01 11 -pins
2L (WB) Alternator output Voltage 2L (WB)
-
Ground Run engine Approx.
14V

Q-01
17-pins
A (WG) Brake light switch Voltage A (WG)
-
Ground Depress brake pedal 12V
Q-01
17-pins
B (RY) Motor Continuity B (RY)
—
Ground
—
Continuity
Q-01
17-pins
C (LO) Motor relay Resistance C (Lo)(© test-lead)-J
—
Approx. 60—700
Q-01
17-pins
D (GR) Check connector Continuity D (GR)
- A
(GR, Q-07)
—
Continuity
Q-01
17-pins
E (BL) Fail-safe relay Resistance E (BL)
- G
(BG)
—
Approx. 70-800
Q-01
17-pins
F (LY) Warning light Continuity F (LY)
-
Ground
—
Continuitv Q-01
17-pins G (BG) Battery Voltage G (BG)
—
Ground Turn ianition
SW ON
12V Q-01
17-pins H (GB) Check connector Continuitv H (GB)
- B
(GB. Q-07)
—
Continuitv
Q-01
17-pins
J (YG) Solenoid valve
Resistance
JfYG)
- K
(Br)

-
Approx.
5.5—7.00
Q-01
17-pins
K (Br) Solenoid valve
Resistance
JfYG)
- K
(Br)

-
Approx.
5.5—7.00
Q-01
17-pins
M (YR) Solenoid valve Resistance M (YR)
- 0
(BW)
-
Approx.
5.5—7.00
Q-01
17-pins
0 (BW) Solenoid valve Resistance M (YR)
- 0
(BW)
-
Approx.
5.5—7.00
Q-01
17-pins
Q (YW) Solenoid valve
Resistance
Q (YW)
- R
(L)

-
Approx.
5.5—7.00
Q-01
17-pins
R (L) Solenoid valve
Resistance
Q (YW)
- R
(L)

-
Approx.
5.5—7.00
Q-01
17-pins
L (B)
Ground circuit Continuity
L (B)
—
Ground
Continuity
Q-01
17-pins
N
(B)
Ground circuit Continuity N (B)
—
Ground Continuity
Q-01
17-pins
P (B)
Ground circuit Continuity
P (B)
—
Ground
C (B.Q-07)
-
Ground
Continuity
4-pins C(B)
Ground circuit Continuity
P (B)
—
Ground
C (B.Q-07)
-
Ground
Continuity

Control Unit Connector View from harness side
Q-01 (11-pin)

LB
GR YG Y W
>1 ,1 U;.l Ki -X
1 L G VL rf
Q-01 (17-pin)
Q-01 ABS Control Unit [R]
YW BW YR Br 8G BL LO WG
icL olL
MIL
ICL G(=L tl ij^" llyl
>1
CjJ
Lt|J JCjJ fiC|3 H«|3
L B B B ffi SB L* GS RY
Check connector (4-pin)
Q-07 Check Connector [RJ
B GR
LY GB
86U11X-199
11—99

13 OUTLINE
Rear Coil Springs
Transa-xle
Sun-
roof
Identification color
Model Market Engine Transa-xle
Sun-
roof AAS ABS Orange White Yellow Brown Blue Green Red Pink
Sedan ECE F8 M4 — — — R L
M5 — — — R L
4HAT — — R L
FE M5 — — — R L
— — R L
— o — R L
O 0 — R L
4HAT — „ — R L
— 0 — R L
— — — R L
o — — R L
FE (DOHC) M5 — — — R L
— o — R L
— o 0 R L
— — o R L
0 — — R L
0 o — R L
o 0 0 R L
o — o R L
FE (Fuel M5 — — — R L
Injection) — o — R L
EC-AT o — — R L
o o — R L
RF-N M5 — — — R R L L
RF-CX _ — — R L
Left Hand F8 M5 — — — R L
Drive — o — R L
4HAT — — — R L
RF-N M5 — — — R L
Middle East FE M5 — — — R L
— o — n L
4HAT — — — R L
— o — L
Right Hand F6 3AT — — — L R
Drive M5 — — — L R
FE M5 — — — L
— o — L R
4HAT — — — L
— o — L R
FE (DOHC) M5 — — — L R — o o L R
RF-N M5 — — L R
F8 M5 — — — L R
4HAT — — — L R
76G13X-006
0 Available R Right side M4, M5 Manual transaxle 3AT Automatic transaxle — Not available L Left side EC-AT... Electronically controlled automatic transaxle 4HAT..., Hydrallic controlled automatic transaxle 4WS...... 4-wheef steering AAS Auto adjusting suspention ABS Anti-lock brake system
13-8

1 3 REAR CROSSMEMBER (4WS)
REAR CROSSMEMBER (4WS)
REMOVAL AND INSTALLATION
1. Jack up the front of the vehicle and support it with safety stands.
2. Remove in the sequence shown in the figure, referring to the removal note for specially marked parts.
3. Inspect all components and parts, referring to inspection note.
4. Install in the reverse order of removal, referring to the installation note for specially marked parts.
5. Tighten all nuts and bolts to the specified torque, referring to page 13—49.
76G13X-030
1. Cotter pin and nut
2. Bolt
3. Bolt
4. Cover
5. Oil hose and pipe
6. Bolts
7. Rear steering assembly
8. Nut, retainer, and bushing
9. Nut, retainer, and bushing
10. Bolts
11. Stabilizer
12. Nuts and bolts
13. Cotter pin and nut
14. Bushing and retainer
15. Trailing link
16. Bolt
17. Clip
18. Brake pipe
19. Bolt
20. Nut
21. Crossmember
13—44

1 3 REAR CROSSMEMBER (4WS)
86U13X-096
Brake lines
1. When disconnecting the flexible hose and brake
line, remove the clip after first loosening the flare
nut.
2. When connecting the flexible hose, do not tighten
too tight or twist.
3. Air bleed the brake system. (Refer to Section 11)
Caution
Do not allow brake fluid to get on painted sur-
faces. If it does, wipe it off immediately.
Inspection Note
Check the following and repair or replace any faulty
parts.
1. Crossmember for bending or damage
2. Crossmember mounts for deterioration or wear
Crossmember bushing
Removal
1. Cut away the projecting rubber of the crossmem-
ber bushing.
2. Remove the bushing from the crossmember with
the SST.
13—46

1 3 REAR CROSSMEMBER (4WS)
5. Install the stabilizer bushings and brackets.
Tightening torque: 43—54 N-m
(4.4—5.5 m-kg, 32—40 ft-lb)
Caution
Lower the vehicle and check the torque with
the vehicle unloaded.
86U13X-103
6. Install the stabilizer control link.
Tighten the link nuts so that there is 13 mm (0.51
in) of thread (A) exposed.
86U13X-104
7. Install the rear steering pipe and hose.
86U13X-105
8. Air bleed the brake system. (Refer to Section 11)
86U13X-106
13—48

1 4 REAR COMBINATION LIGHTS
REAR COMBINATION LIGHTS
REMOVAL AND INSTALLATION
1. Disconnect the negative battery cable.
2. Remove in the sequence shown in the figure.
3. Install in the reverse order of removal.
76G14X-010
Hatchback
1. End trim
2. Nuts
3. Lens and body
4. Cover
5. Bulb: Turn signal light 21W
Brake and tail light 21W
Side marker light 5W
Sedan and Coupe/MX-6
1. End trim
2. Nuts
3. Lens and body
4. Cover
5. Bulb: Turn signal light 21W
Brake and tail light 21W
Side marker light 5W
14—32

30 TECHNICAL DATA
Item Engine model FE engine F6 engine
Front clutch

Number
of
driven and drive plates 3
Drive plate thickness mm (in) Standard 1.6 (0.063) Drive plate thickness mm (in) Minimum 1.4 (0.055)
Front clutch clearance mm (in) 1.6-1.8 (0.063-0.071)
Retaining plate sizes mm (in) 5.2 (0.205), 5.4 (0.213), 5.6 (0.220),
5.8 (0.228), 6.0 (0.236), 6.2 (0.244)
Return spring free length mm (in) 26.2 (1.031)
Drum bushing inner diameter mm (in) Standard 44.000-44.025 (1.732-1.733) Drum bushing inner diameter mm (in) Maximum 44.075 (1.735)
Front clutch drum end play mm (in) 0.5-0.8 (0.197-0.0315)
End play adjust shims mm (in) 1.3 (0.0512), 1.5 (0.0591), 1.7 (0.0669), 1.9 (0.0748), 2.1 (0.0827), 2.3 (0.0906),
2.5
(0.0984), 2.7 (0.1063)

Rear clutch

Number
of
driven and drive plates 4
Drive plate thickness mm (in) Standard 1.6 (0.063) Drive plate thickness mm (in) Minimum 1.4 (0.055)
Rear clutch clearance mm (in) 0.8--1.0 (0.0315- 0.0394)
Retaining plate sizes mm (in) 4.8 (0.189), 5.0 (0.197), 5.2 (0.205), 5.4 (0.213),
5.6 (0.220), 5.8 (0.228), 6.0 (0.236), 6.2 (0.244)
Return spring free length mm (in) 26.2 (1.031)

Low and reverse brake

Number
of
low and reverse brake plates 4
Drive plate thickness mm (in) Standard 1.6 (0.063) Drive plate thickness mm (in) Minimum 1.4 (0.055)
Low and reverse brake clearance mm (in) 0.8-1.05 (0.032-0.041)
Retaining plate sizes mm (in) 4.6 (0.181),
4.8
(0.189), 5.0 (0.197), 5.2 (0.205), 5.4 (0.213), 5.6 (0.220)
Return spring free length mm (in) 27.7 (1.091)

Servo

Return sprina free lenath mm (in) 48.0 (1.89) 45.5 (1.79)

Governor

Primary spring mm (in) Outer diameter 9.0 (0.354) Primary spring mm (in) Free lenath 17.2 (0.667)
Secondary spring mm (in) Outer diameter 9.25 (0.364) Secondary spring mm (in) Free lenath 13.2 (0.520)

One-wav clutch

Bushing diameter mm (in) Standard 129.987-130.013 (5.118--5.119) Bushing diameter mm (in) Maximum 130.063 (5.121)

Control valve SDrinas
Spring name Outer dia. mm (in) Free length mm (in) Wire dia. mm (in)

Throttle backup spring 7.3 (0.287) 36.0 (1.417) 0.8 (0.031)
Downshift sorina 5.55 (0.219) 21.9 (0.862) 0.55 (0.022)
2-3 shift spring 6.9 (0.272) 41.0 (1.614) 0.7 (0.028)
1-2 shift spring 6.4 (0.252) 31.63 (1.245) 0.4 (0.016)
Second lock spring 5.55 (0.219) 33.5 (1.319) 0.55 (0.022)
Pressure reaulator sprina 11.7 (0.461) 43.0 (1.693) 1.2 (0.047)
Throttle relief ball spring 7.0 (0.276) 11.2 (0.441) 0.9 (0.035)
Orifice check valve sprina 5.0 (0.197) 15.5 (0.610) 0.23 (0.009)

30-34