MAZDA 626 1987 Workshop Manual

1 4 SEAT
69G14X-228
INSPECTION
Inspection of Front Seat
1. Check that the seat adjuster lever and recliner
knuckle lever move smoothly.
2. Check the seat mounting bolts for looseness. If
necessary, tighten the bolts to the specified torque.
Tightening torque:
Seat mounting bolt: 38—51 N-m
(3.9—5.2 m-kg, 28—38 ft-lb)
3. Apply grease to the moving parts.
4. Check the seat adjuster lever for wear.
REAR SEAT (Sedan and Coupe/MX-6)
Removal
1. Push the locks as shown in the figure to release
the cushion, then lift the seat cushion out.
76G14X048
2. Remove the end bolts, and lift the seat back off
the hooks.
69G14X-236
14—100
3. Remove the fastener.
4. Remove the seat back.
Installation
Install in the reverse order of removal.
Note
Tightening torque:
Seat back:
16—23 N-m (1.6—2.3 m-kg, 12—17 ft-lb)

SEAT BELTS
1
4
SEAT BELTS
STRUCTURAL VIEW
76G14X-032
1. Buckles 3. Rear seat belts 5. Retractors
2. Front seat belts 4. Retractors
INSPECTION
1. Check that the belt can be pulled out smoothly and
that it retractors lock when belt pulled quickly.
2. Inspect the webbing for scars, tears, and wear and
for deformation of the fittings.
Caution
Do not disassemble the buckle or ELR as-
sembly.
14—101

1 4 UNDERBODY PROJECTED DIMENSIONS
UNDERBODY PROJECTED DIMENSIONS
(83'0l) 19Z SM (lYOL) 993
-
_ LO
CO
ij-f-Tl- (O
—
in co ^ e>J n,
(90'9)
Tl" 00 -r Si in oo oo
„ "fr m r>-.05
FTr-
CO
o o w O
CM oo
xco
in IX CC

C5
T-

in
in
~X X
® 2 <73
(03'0L) 6SS SMfr (66 6) frSS
86U14X-193
14-102

A: Frame mounting nut (M10)
B: Front fender panel mounting nut (M6)
C: Crossmember mounting bolt (M12)
D: Front mounting block
E: Steering bracket mounting nut (M12)
F: Front fender panel mounting nut (M6)
G: Frame mounting bolt (M12)
H: Front frame, lower standard hole (8)
I : Front frame [c], lower standard hole (12)
J : Crossmember mounting nut (M10)
(Crossmember mounting bolt (M10)...4WS)
K: Rear mounting block
L : Crossmember mounting nut (M10)
(Crossmember mounting bolt (M12)...4WS)
M: Rear frame, lower standard hole(10<£)
N: Rear bumper mounting hole (140)
l (outside, lower)
86U14X-193

I

o
oo o> c
X CD
mm (in)
A: Frame mounting nut (M10)
B; Crossmember mounting bolt (M12)
C: Frame mounting bolt (M12)
D: Front frame, lower standard hole (80)
(Protector mounting nut (M8)... 4WS
E: Front frame [c], lower standard hole (120)
F: Crossmember mounting nut (M10)
(Crossmember mounting bolt (M12)... 4WS
G: Rear frame, lower standard hole (100)

15
BODY ELECTRICAL SYSTEM
INTRODUCTION 15- 2 HOW TO USE THIS SECTION 15— 2 ELECTRICAL TROUBLESHOOTING TOOLS 15- 2 PRECAUTION 15— 3 ELECTRICAL SYMBOLS 15- 6 LOCATION OF UNIT, RELAY AND SWITCH 15- 7
STRUCTURAL VIEW 15— 7 MAIN FUSE BLOCK 15- 9 STRUCTURAL VIEW 15— 9 REPLACEMENT 15—10 IGNITION SWITCH 15—10
INSPECTION 15— 10 JOINT BOX AND FUSE 15—11
STRUCTURAL VIEW 15—11
COMBINATION SWITCH 15-12 STRUCTURAL VIEW 15- 12 INSPECTION 15— 13 CLUSTER SWITCH 15—17 STRUCTURAL VIEW 15— 17 INSPECTION OF ROCKER TYPE 15— 19
INSPECTION OF PUSH TYPE 15— 20 METER 15— 22 STRUCTURAL VIEW 15— 22 DISASSEMBLY AND ASSEMBLY 15— 23
TROUBLESHOOTING 15— 24 INSPECTION OF ANALOG METER .... 15— 26 INSPECTION OF DIGITAL METER 15— 27
INSPECTION OF METER SENDER 15— 29 WARNING LIGHT AND SENDER 15- 31 CIRCUIT DIAGRAM 15— 31
TROUBLESHOOTING 15- 32 INSPECTION 15— 39 CENTRAL PROCESSING UNIT 15— 41 STRUCTURAL VIEW 15— 41 FUNCTIONS 15- 41 CIRCUIT DIAGRAM 15— 42 REMOVAL AND INSTALLATION 15— 43
ON-VEHICLE INSPECTION 15- 43 TURN AND HAZARD LIGHT 15- 44 STRUCTURAL VIEW 15— 44 CIRCUIT DIAGRAM 15— 45
TROUBLESHOOTING 15- 46 INSPECTION 15— 47 STOP LIGHT 15— 48
STRUCTURAL VIEW 15— 48 CIRCUIT DIAGRAM 15— 49
TROUBLESHOOTING 15- 49 INSPECTION 15- 50 HORN 15— 52 STRUCTURAL VIEW 15— 52 CIRCUIT DIAGRAM 15— 52 TROUBLESHOOTING 15— 53 INSPECTION 15-53 HEADLIGHT 15— 54 CIRCUIT DIAGRAM 15— 54 TROUBLESHOOTING 15— 54 INSPECTION 15— 55 PANEL LIGHT CONTROL 15— 56 CIRCUIT DIAGRAM 15— 56
TROUBLESHOOTING 15_ 5fi INSPECTION 17 REAR WINDOW DEFROSTER ..i".'! 15- 58
STRUCTURAL VIEW 15-5fl CIRCUIT DIAGRAM 15_ «
TROUBLESHOOTING '.. 15_ 59
INSPECTION
15-60 POWER WINDOW 15-61 STRUCTURAL VIEW il_ «1 CIRCUIT DIAGRAM 15_ 62 TROUBLESHOOTING 15- «3 INSPECTION 15-66 REMOTE CONTROL MIRROR ........15- 69 STRUCTURAL VIEW 15-69 CIRCUIT DIAGRAM 15_ 69
TROUBLESHOOTING 15_ 70 INSPECTION 15_ 70 REAR WINDOW WIPER 15_ 71 STRUCTURAL VIEW 15-71 CIRCUIT DIAGRAM .'.'.'...' 15_ 72
TROUBLESHOOTING 15-73 INSPECTION 15-75 WINDSHIELD WIPER 15-76 STRUCTURAL VIEW ' ' 15— 7e
DISASSEMBLY AND ASSEMBLY OF WIPER MOTOR 15_ 76 CIRCUIT DIAGRAM 15-77 TROUBLESHOOTING " " 15— 70 INSPECTION 15-81 CRUISE CONTROL SYSTEM 15- 82 STRUCTURAL VIEW 15-82 CIRCUIT DIAGRAM 15-83 ON-VEHICLE INSPECTION \..\m 15- 84 INSPECTION 15-87 SLIDING SUNROOF 15-89 STRUCTURAL VIEW 15_ 89 CIRCUIT DIAGRAM i5_ 90
TROUBLESHOOTING 15— 91 INSPECTION 15_ 90 AUTO ADJUSTING SUSPENSION 15— 94
CIRCUIT DIAGRAM 15- 94
TROUBLESHOOTING GUIDE 15— 94
TROUBLESHOOTING 15— 94
INSPECTION 15-104
POWER DOOR LOCK 15-105
STRUCTURAL VIEW 15-105
CIRCUIT DIAGRAM 15-105
TROUBLESHOOTING 15-106 INSPECTION 15-107 AUDIO SYSTEM " 15_108 OUTLINE OF AUDIO SYSTEM 15-108 REAR CONNECTOR VIEW 15-109 ADJUSTMENT (MTR) 15—114 POWER ANTENNA 15-114 HEATER J
STRUCTURAL VIEW 15-116 AIR FLOW AT EACH MODE 15-117 RATE OF AIR FLOW 15-119 LEVER CONTROL TYPE 15-120 LOGICAL CONTROL
TYPE
15—121 LOGICON SWITCH 15—123
76G15X-001

15 INTRODUCTION
INTRODUCTION
HOW TO USE THIS SECTION
Information regarding removal and installation of electrical equipment is given in SECTION 14.
Understanding will be easier if this section is used in conjunction with the WIRING DIAGRAMS.
63U15X-002
ELECTRICAL TROUBLESHOOTING TOOLS
Test Light
The test light, as shown in the figure, uses a 12V bulb.
The two leads should be connected to probes. The
test light is used for simple voltage checks and to
check for short circuits.
Caution
When checking the control unit, never use a
bulb over 3.4W.
69G15X-002
Jumper Wire
The jumper wire is used for testing by short-circuiting
switch terminals and to verify the condition of ground
connections.
Caution
Do not connect the jumper wire between a
power source line and body ground, because
doing so may cause burning or other damage
to harnesses or electronic components, etc.
61G15X-002
Voltmeter
The DC voltmeter is used for measurement of circuit
voltage. A voltmeter with a range of 15V or more is
used. It is used by connecting the positive (+) probe
(red lead) to the point where voltage is to be meas-
ured and connecting the negative (-) probe (black
lead) to the body ground.
69G15X-003
15—2

INTRODUCTION 15
63U15X-005
BrY
YELLOW
BLACK BROWN
47U15X-008
Ohmmeter
The ohmmeter is used to measure the resistance be-
tween two points in a circuit, and is also used to check
for continuity and diagnosis of short circuits.
Caution
Do not attempt to connect the ohmmeter to
any circuit to which voltage is applied, be-
cause doing so may burn or otherwise dam-
age the ohmmeter.
PRECAUTION
Wiring Color Code
Two-color wires are indicated by a 2-letter symbol.
The first letter indicates the base color of the wire and
the second indicates the color of the stripe.

CODE COLOR

B
BLACK

Br
BROWN

G
GREEN

L
BLUE

Lb
LIGHT BLUE

Lg
LIGHT GREEN

0
ORANGE

R RED

Y
YELLOW

w WHITE
Bulkhead-Type Connector
This connector can be separated by pressing the lock
lever.
Do not pull the wire when removing the connector;
be careful to hold the connector itself when discon-
necting.
69G15X004
15-3

15 INTRODUCTION
69G15X-005
5BU15X-003
Inspection note
When checking the continuity or voltage with a cir-
cuit tester, insertion of the test probe into the recep-
tacle connector may open the fitting of the connector
and result in poor contact.
Therefore, insert the test probe only from the wire har-
ness side.
Replacement of Terminal
Use the appropriate tools to remove the terminal, as
shown in the figure.
When installing a terminal, be sure to press it in until
it locks securely.
< Female Type No.1 >
Insert a push-tool or thin piece of metal from the ter-
minal side of the connector, and then, with the lock-
ing tabs of the terminal pressed down, pull the
terminal out from the rear side.
< Female Type No.2>
5BU15X-004

Same as the female type.
47U15X-012
15—4

INTRODUCTION 15
69G15X-006
4BG15X-003
69G15X-007
/Wire
Shield braid wire
Insulation
Replacement of Fuse
1. When replacing a fuse, be sure to replace it with
one of the specified capacity.
If, after a fuse has been replaced, it fails again, there
is probably a short in the circuit, and the wiring
should be checked.
2. Be sure the negative battery terminal is disconnect-
ed before replacing a main fuse.
3. When replacing a fuse, use the supplied fuse puller
in the fuse box cover.
Thin Insulation Wire
To reduce the weight of the wiring harness, a thin
coating of high resistance insulation material is used.
Shielded braid wire
This wire is used to prevent a malfunction in impor-
tant circuits that are susceptible to outside signals or
interference.
Eg.
Ignition coil
02 sensor
69G15X-008
15—5