1987 MAZDA 626 steering wheel

CONTROL SYSTEM 4C
Resistance
Check resistance between the terminals with an
ohmmeter.
Between terminals Resistance (Q)
1B « 1D More than approx. 20
2F <- 1C More than approx. 60
2F « 1A oo
2B « 2D More than approx. 60
2B ~ 2C oo
NEUTRAL SWITCH
Inspection
1. Disconnect the neutral switch connector.
2. Connect an ohmmeter to the switch.
3. Check continuity of the switch.
Transmission Continuity
In neutral No
In other ranges Yes
4. Reconnect the switch connector.
Note
Refer to Section 7A for replacement of the
neutral switch.
CLUTCH SWITCH
Inspection
1. Disconnect the clutch switch connector.
2. Connect an ohmmeter to the switch.
3. Check continuity of the switch.
Pedal Continuity
Depressed No
Released Yes
4. Reconnect the switch connector.
Note
Refer to Section 6 for replacement of the
clutch switch.
P/S PRESSURE SWITCH
Inspection
1. Disconnect the P/S pressure switch connector.
2. Connect an ohmmeter to the switch.
3. Start the engine. Check continuity of the switch
while turning the steering wheel at idle.
P/S Continuity
Turning Yes
Not turning No
4. Reconnect the switch connector.
Note
Refer to Section 10 for replacement of the P/S
pressure switch.
4C-97

REMOVAL 7A
RF-N and RF-CX
1. Battery
2. Air cleaner assembly
3. Vacuum hose
4. Intercooler pipe and hose
(RF-CX)
5. Electric fan
6. Speedometer cable
7. Ground(s)
8. Clutch release cylinder
9. Pressure and return hoses
(power steering)
10. Starter
11. Wheel
12. Splash shield
13. Stabilizer
14. Joint shaft
15. Extension bar
16. Control rod
76G07A-011
17. Exhaust pipe bracket
18. Water pipe
19. Gusset plate (rear)
20. Gusset plate (front)
21. Under cover
22. Engine mount No.4
23. Engine mount No.2
24. Crossmember
7 A—13

TROUBLESHOOTING GUIDE 9
TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy Page
Faulty operation of
driveshaft
Broken ball joint
Broken tri-pod joint
Worn or seized joint
Replace
Replace
Replace
9—31
9—35
9—31, 35
Abnormal noise from driveshaft Insufficient grease in joint or spline Excessive backlash on spline Worn joint
Add or replace
Replace
Replace
9—33, 36 9—31, 35 9-31, 35
Steering wheel pulls. (Steering wheel pulls toward either right or left side)
Bent steering linkage
Fatigued coil spring
Lower arm bushing worn or damaged Bent knuckle Bent lower arm or loose mounting Incorrect toe-in adjustment Improper tire air pressure Unevenly worn tires (left and right tires) Brake dragging
Refer to Section 10 Refer to Section 13 Refer to Section 13 Replace Refer to Section 13 Refer to Section 13 Refer to Section 12 Refer to Section 12 Refer to Section 11
9-11
Unstable handling Bent steering linkage
Joint in steering system worn or damaged
Incorrect steering pinion preload adjustment Fatigued coil spring
Faulty shock absorber(s) Lower arm bushing worn or damaged Incorrect toe-in adjustment (front or rear) Improper tire air pressure Wheel(s) bent or unbalanced
Refer to Section 10 Refer to Section 10 Refer to Section 10 Refer to Section 13 Refer to Section 13 Refer to Section 13 Refer to Section 13 Refer to Section 12 Refer to Section 12
—
Excessive steering wheel play Faulty front wheel bearing Incorrect steering pinion preload adjustment Rack and pinion worn Joint in steering system worn or damaged Lower arm bushing worn or damaged
Adjust Refer to Section 10 Refer to Section 10 Refer to Section 10 Refer to Section 13
9-11
Tires excessively worn or worn un-evenly
Incorrect toe-in adjustment Improper tire air pressure Unbalanced wheel(s)
Refer to Section 13 Refer to Section 12 Refer to Section 12 —
Abnormal noise
from axle
Faulty wheel bearing Replace 9-11,18,23
86U09X-006
9—7

10
STEERING SYSTEM
OUTLINE 10— 2
STRUCTURAL VIEW 10— 2 SPECIFICATIONS 10— 6
TROUBLESHOOTING GUIDE 10— 7
MANUAL STEERING 10— 7
POWER STEERING 10— 8
4WS 10— 9
ON-VEHICLE MAINTENANCE 10— 10
STEERING WHEEL PLAY 10— 10
LOOSENESS OR PLAY OF THE
STEERING WHEEL 10— 10
STEERING WHEEL EFFORT 10— 10
POWER STEERING FLUID LEVEL 1 fl-11
LOOSE OR DAMAGED
OIL PUMP BELT IC— 12
REAR STEERING GEAR OIL 10— 12 LEAKAGE OF POWER STEERING
FLUID 10— 13
INSPECTION AND ADJUSTMENT. 10— 15
BLEEDING OF POWER STEERING
SYSTEM 10— 15
POWER STEERING PRESSURE ... 10— 16
TIE-ROD END BOOTS 10— 18
REMOVAL AND INSTALLATION .. 10— 18
STEERING WHEEL AND COLUMN 10— 21
STRUCTURAL VIEW 10— 21
REMOVAL 10— 22
DISASSEMBLY AND ASSEMBLY.. 10— 24
INSPECTION 10— 25
INSTALLATION 1 fl-27
STEERING GEAR AND LINKAGE .. IC— 28
STRUCTURAL VIEW 10— 28
REMOVAL 10— 29
INSTALLATION 10— 30
4-WHEEL STEERING GEAR AND
LINKAGE 10— 31
STRUCTURAL VIEW 10— 31 4WS PERFORMANCE INSPECTION 10— 32
ADJUSTMENT OF STEERING
ANGLE TRASFER SHAFT 10— 35
REMOVAL AND INSTALLATION .. 10— 37
INSPECTION 10— 44
MANUAL STEERING 10— 48
DISASSEMBLY 10— 48
INSPECTION 10— 51
ASSEMBLY 10— 52
ENGINE SPEED SENSING POWER
STEERING 10— 58
DISASSEMBLY 10— 58
INSPECTION 10— 62
ASSEMBLY 10— 64
ELECTRONICALLY-CONTROLLED
POWER STEERING 10— 75
DISASSEMBLY 10— 75
INSPECTION 10— 78
ASSEMBLY 10— 79
OIL PUMP 10— 83
REMOVAL AND INSTALLATION .. 10— 83
ELECTRICAL COMPONENTS OF
ELECTRONICALLY-CONTROLLED
POWER STEERING 10— 87
CIRCUIT DIAGRAM 10— 87
TROUBLESHOOTING GUIDE 10— 87
TROUBLESHOOTING 10— 87
ELECTRICAL COMPONENTS OF
4 WHEEL STEERING 10— 94
CIRCUIT DIAGRAM 10— 94
TROUBLESHOOTING GUIDE 10— 95
TROUBLESHOOTING 10— 95
4WS WARNING LIGHT 10—102
SPEED SENSOR (IN METER) 10—103
SPEED SENSOR (AT TRANSAXLE) 10—103
REAR-TO-FRONT STEERING
RATIO SENSOR 10—103
OIL LEVEL SWITCH
(IN P/S RESERVOIR) 10—103
RELAY AND TIMER 10—104 76G10X-001

10 OUTLINE
OUTLINE
STRUCTURAL VIEW
86U10X-0G2
1. Steering wheel
2. Steering shaft
3. Intermediate shaft
4. Steering gear assembly
10—2

OUTLINE 10
1. Steering wheel
2. Steering shaft
3. Intermediate shaft
4. Steering gear assembly
5. Pressure hose
6. Return hose
7. Oil pump
8. Reserve tank
86U10X-003
Note
Engine speed sensing power steering is abbreviated ESPS.
10—3

10 OUTLINE
86U10X-004
1. Steering wheel
2. Steering shaft
3. Intermediate shaft
4. Steering gear assembly
5. Pressure hose
6. Return hose
7. Oil pump
8. Solenoid valve
9. Control unit
10. Reserve tank
11. Steering angle sensor
12. Check connector
Note
Electronically - controlled power steering is abbreviated ECPS.
10—4

OUTLINE 10
86U10X-005
1. Reserve tank
2. Oil pump
3. Front steering gear assembly
4. Speed sensor
5. Control unit
6. Steering angle transfer shaft
7. Solenoid valves
8. Rear steering gear assembly
9. Steering wheel
10. Steering shaft
11. Relay and timer
Note
4-wheel steering is abbreviated 4WS.
10—5