ABS MAZDA 626 1987 Repair Manual

1 1 ANTI-LOCK BRAKE SYSTEM (ABS)
INSTALLATION
1. Install in the reverse order of removal.
Before installing the air cleaner assembly, igniter, and fuel filter:
(1) Add brake fluid and bleed air. (Refer to page 11—9.)
(2) Check each part for fluid leakage.
(3) Check the brake fluid level of both the master cylinder reservoir and hydraulic unit reservoir.
2. Tighten all bolts and nuts to the specified torque, referring to torque specifications.
3. After installation:
(1) The sealing reservoir cap (red) is installed on the new hydraulic unit to prevent the brake fluid
from leaking while shipping. Replace it with an original cap (black) after replacing the hydraulic unit.
(2) Check that the hydraulic unit operates properly by testing the pressure reduction. (Refer to page
11-95.)
Torque specifications
11-98

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
SUSPENSION
OUTLINE 13— 2
STRUCTURAL VIEW 13— 2
SPECIFICATIONS 13— 4
TROUBLESHOOTING GUIDE 13—11
FRONT SHOCK ABSORBER AND
SPRING 13—13
REMOVAL AND INSTALLATION 13—13
DISASSEMBLY AND ASSEMBLY 13—15
FRONT LOWER ARM 13—18
REMOVAL AND INSTALLATION 13—18
FRONT STABILIZER (4WS) 13—23
REMOVAL AND INSTALLATION 13—23
FRONT STABILIZER 13—27
REMOVAL AND INSTALLATION 13—27
REAR SHOCK ABSORBER AND SPRING .. 13—29
REMOVAL AND INSTALLATION 13—29
DISASSEMBLY AND ASSEMBLY 13—32
LATERAL LINK AND TRAILING LINK 13—34
REMOVAL AND INSTALLATION 13—34
REAR LOWER ARM AND TRAILING
LINK (4WS) 13—36
REMOVAL AND INSTALLATION 13—36
REAR STABILIZER 13—39
REMOVAL AND INSTALLATION 13—39
REAR STABILIZER AND CONTROL
LINK (4WS) 13—41
REMOVAL AND INSTALLATION 13—41
REAR CROSSMEMBER (4WS) 13—44
REMOVAL AND INSTALLATION 13—44
FRONT WHEEL ALIGNMENT 13—50
REAR WHEEL ALIGNMENT 13—52
76G13X-001

13 OUTLINE
SPECIFICATIONS
Front Suspension
Item Specifications
Suspension type Strut
Toe-in mm (in) 0 ± 3 (0 ± 0.12)
Front wheel alignment Camber angle 0C 17' ± 45' Front wheel alignment Caster angle 1c 13' ± 45'
King pin angle 12°47'
Maximum front steering Inner 36 °00' ± 2°
angle Outer 31 °00' ± 2°
Stabilizer Type Torsion bar Stabilizer Diameter mm (in) 20.0 (0.79)
Shock absorbers Standard suspension Oil type Shock absorbers Auto adjust suspension Low-pressure gas sealed type
Identification color Green Light green Pink Brown Purple Gray Orange
Wire diameter mm (in) 12.6 (0.49) 12.8 (0.50)
12.9
(0.51) 13.1 (0.52)
13.3 (0.53)
13.6
(0.54) 12.5 (0.49)
*Coil springs Coil inner diameter mm (in) 147.5 (5.8)
Free length mm (in) 353 (13.9)
362 (14.3) 370 (14.6) 372 (14.6) 365 (14.4)
350
(13.8)
344
(13.5)
Coil number 5.09 5.31 5 42 5.53 5.46 5.34 4.99
* Refer to pages 13—5, 6, 7 spring applications.
Rear Suspension
Item Specifications
SusDension tvDe Strut
Rear wheel alignment
Toe-in
mm (in)
2WS 0 ± 3 (0 ± 0.12)
Rear wheel alignment
Toe-in
mm (in) 4WS 3 ± 3 (0.12 ± 0.12) Rear wheel alignment Camber
anale
2WS -0°30' ± 45' Rear wheel alignment Camber
anale 4WS 0°00' ± 45'
Maximum rear steering angle (4WS) Inner 5°00' ± 45' Maximum rear steering angle (4WS) Outer 5°00' ± 45'
Stabilizer TvDe Torsion bar Stabilizer Diameter mm (in) 16 (0.63)
Shock absorbers Standard susDension Oil tvDe Shock absorbers Auto adiust suspension Low-pressure c las sealed type
'Coil springs
Identification color Orange White Yellow Brown Blue Green Red Pink
'Coil springs
Wire diameter mm (in) 11.6
(0.45)
11.7 (0.46) 11.8
(0.46)
11.9 (0.47)
12.1
(0.48)
12.2
(0.48)
12.4 (0.49) 12.6 (0.50)
'Coil springs Coil inner diameter mm (in) 127.5 (5.0) 'Coil springs
Free length mm (in) 297 (11.7) 306 (12.0)
314 (12.4) 323 (12.7) 327 (12.9) 332 (13.1) 336 (13.21 340 (13.4)
'Coil springs
Coil number 5.44 5.58 5.72 5.87 6.03 6.04 6.21 6.36
'Refer to pages 13—8, 9, 10 spring applications.
13—4

OUTLINE 13
Front Coil Springs
Transa-
xle
Sun-
roof
Identification color
Model Market Engine Transa-
xle
Sun-
roof AAS ABS Green Light
green Pink Brown Purple Gray Orange
Sedan ECE F8 M4 — — — O
M5 — — — 0
4HAT — — — O
FE M5 — — — O
0 — — O
— o — o
o o — o
4HAT -— — o
— o — O
— — — o
o — — o
FE (DOHC) M5 — — — o
— o — 0
— o o o
— — o o
0 — — o
o o — o
0 0 o o
o — 0 o
FE (Fuel M5 — — — o
Injection) — 0 — O
EC-AT O — — o
o o — o
RF-N M5 — — — 0
RF-CX — — — o
Left Hand F8 M5 — — — o
Drive „ o — o
4HAT — — — o
RF-N M5 — — — o
Middle East FE M5 — — — o
-o — o
4HAT — — — o
— o — 0
Right Hand F6 3AT — — — 0
Drive M5 — — — o
FE M5 — — — 0
— o _ o
4HAT — — — o
— 0 — o
FE (DOHC) M5 — — — o
— o o 0
RF-N M5 — — — o
F8 M5 — — — 0
4HAT — — — o
76G13X003
O Available M4, M5.... ...Manual transaxle
— Not available EC-AT ....Electronically controlled automatic transaxle 4HAT ....Hydrallic controlled automatic transaxle
4WS ... 4-Wheel steering
AAS ....Auto adjusting suspention ABS ....Anti-lock brake system
3AT ... Automatic transaxle
13—5

13
OUTLINE
Transa-
xle Sun-

roof
Identification color
Model Market Engine Transa-
xle Sun-

roof
AAS ABS
Green Light
green Pink Brown Purple Gray Orange
Hatchback
ECE F8 M4 — — — O
M5 — — — O

4HAT
— — — O
FE M5 — — — o
O — — o

4HAT
-— — o
o — — O
FE
(DOHC)
M5 — — — o
— o — O
— o 0 o
— — 0 o
o — — o
o o — o
o o o 0
o — 0 o
— — 0 O (4WS)
o — 0 o
(4WS)

Left Hand
F8 M5 — — o
Drive 4HAT
— — — o
FE M5 — — — 0
— o — o

Middle East
FE M5 — — — o
— o — o

4HAT
— — — 0
-o — 0

Right Hand
F8 M5 — — — o
Drive 4HAT
— — o
FE M5 — — — o
— o — o

4HAT
— — — o
— o — o
FE
(DOHC)
M5 — — — o
— o — o
— o o

76G13X-004

13—6

OUTLINE
13

Transa-
xle Sun-

roof
Identification color
Model Market Engine Transa-
xle Sun-

roof
AAS ABS
Green Light
green Pink Brown Purple Gray Orange
Coupe/MX-6
ECE FE M5 — — — 0
O — — O

4HAT
— — — O
o — — 0
FE
(DOHC)
M5 — — — O
— o — o
— o o o
— — o o
o — — o
o o — o
o o o o
o — o o

Left Hand
FE M5 — — — O
Drive
— o — O
F8 M5 — — — o

Middle East
FE M5 o — — O
— o — o

Right Hard
F8 M5 — — — o
Drive
FE M5 — — — o
— o — o

4HAT
— — — o
— o — o
FE
(DOHC)
M5 — — — o
— o — o
— o o o

76G13X-005

13—7

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

OUTLINE
13

Transa-
xle Sun-
roof
Identification color
Model Market Engine Transa-
xle Sun-
roof
AAS ABS
Orange White Yellow Brown Blue Green
Red
Pink
Hatchback
ECE F8 M4 — — — R L
M5 — — — R L

4HAT
— — — R L
FE M5 — — — R L
O — — R L

4HAT
— — — R L
o — — R L
FE
(DOHC)
M5 — — — R L
— o — R L
— 0 o R L
— — o R L
o — — R L
o o — R L
o o o R L
o — o R L
— — o R
(4WS)
L
(4WS)
o — o R
(4WS)
L
(4WS)

Left Hand
F8 M5 — — — R L
Drive 4HAT
— — — R L
FE M5 — — — R L
— o — R L

Middle East
FE M5 — — — R L
— o — R L

4HAT
— — — R L
— o — R L

Right Hand
F8 M5 — — — L R
Drive 4HAT
— — — L R
FE M5 — — — L R
— o — L R

4HAT
— — — L R
— o — L R
FE
(DOHC)
M5 — — — L R
— o — L R
— o o L R

76G13X-007

13—9

13
OUTLINE
Transa-
xle Sun-

roof
Identification color
Model Market Engine Transa-
xle Sun-

roof
AAS ABS
Orange White Yellow Brown Blue Green
Red
Pink
Coupe/MX-6
ECE FE M5 — — — R L
O — — R L

4HAT
— — — R L
0 — — R L
FE
(DOHC)
M5 — — — R L
— o — R L
— o o R L
— — o R L
0 — — R L
o o — R L
o o o R L
o — o R L

Left Hand
FE M5 -— — R L
Drive
— o — R L
F8 M5 — — — R L

Middle East
FE M5 o — — R L
— o — R L

Right Hand
F8 M5 — — — L R
Drive
FE M5 — — — L R
— o — L R

4HAT
— — — L R
— o — L R
FE
(DOHC)
M5 — — — L R
— o — L R
— o o L R

76G13X-008

13—10