light MAZDA 626 1987 Workshop Manual

1 4 INSTRUMENT PANEL
86U14X-187
86U14X-188
86U14X-189
18. Remove the screws and pull the panel outward.
19. Disconnect the connectors and remove the switch
panel.
20. Remove the screws and remove the glove box.
21. Disconnect the glove box light connector.
22. Remove the center panel.
23. Remove the screws and slide out the heater con-
trol assembly.
24. Disconnect the control wires at the DEF, MAX-
COLD and REC positions (lever type control).
Note
Disconnect the connectors at the rear of the
control (Logicon type).
25. Remove the center cap.
26. Remove the instrument panel mounting bolt.
86U14X-190
14-78

1 4 SLIDING SUNROOF
3. After moving the guide bracket assembly slightly
toward the rear, tighten the screw, taking care
regarding the direction the set plate faces.
76U14X-059
Ipi
" (E) ling
Notch jilting Cam
—+ * ) siii
Align the projection of the tilting cam and the slit
in the set plate.
76U14X-060
5. Check that the limit switches (LS1 and LS2) of the
motor are as shown in the figure at the OFF po-
sition.
Note
a) Be careful of the cam position.
b) Use the handle to position it correctly.
76U14X-061
6. Install the motor assembly.
Note
There are 2 types of screws, long and short.
Be sure to use the correct ones.
7. Connect the wiring of the motor assembly and the
motor switch.
76U14X-062
14-86

HEADLIGHT WASHER 14
HEADLIGHT WASHER
REMOVAL AND INSTALLATION
1. Remove in the sequence shown in the figure.
2. Install in the reverse order of removal.
76G14X-039
1. Bracket
2. Coolant reservoir
3. Bracket
4. Washer pump
5. Washer nozzles
6. Clips
7. Hose
8. Joint
9. Washer tank
14—97

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
ELECTRICAL SYMBOLS
Switches and Relays
There is an NC (normally closed) and NO (normally open) indication for switches and relays; this indi-
cates the condition when there has been no change of operating conditions.
Relay

NO type relay NC type relay
Switch
NO switch NC switch
Not
in
operation (No power supply)

—Jtfiifij —o o—

Flow Stop Flow
In operation (Power supply)
^
^aijuiy—'

Flow
l=3X

Stop
Flow
Stop

Other Electrical Symbols

Holder
Box —
© ©

Holder
Box —
Holder
Box —

BATTERY BODY GROUND FUSE FUSIBLE LINK

(£)
* 1 fc

MOTOR COIL, SOLENOID RESISTOR VARIABLE RESISTOR

1

ii
-L ©

THERMISTER DIODE CONDENSER LIGHT

1

TRANSISTOR SPEAKER CIGARETTE LIGHTER HEATER

69G15X-009
15—6

1 5 LOCATION OF UNIT, RELAY AND SWITCH
STRUCTURAL VIEW
Hatchback
Light and turn switch
Rear wiper switch
Rear washer switch
Front wiper and washer
switch, and cruise control switch
/ Hazard switch (Except RHD model)
Rear def. switch (Except ECE)
Rear fog light switch (For ECE)
AAS switch
Headlight cleaner switch
Remote control mirror switch
Heater control switch
Driving mode selector switch
Cruise control main switch
Coupe/MX-6 and Sedan

-nr
J

nu
iTPD'i
Rear def, switch (Except ECE) Hazarc
Rear fog light switch (For ECE)
switch (Except RHD model)
15-8
86U15X-003

1 5 COMBINATION SWITCH
CONBINATION SWITCH
STRUCTURAL VIEW
Left hand drive
Alignment mark
Right hand drive
Alignment mark
76G15X-002
1. Light and turn signal switch lever
2. Windshield wiper and washer switch lever
3. Cruise control switch
4. Steering angle sensor
5. Hazard switch
6. Light switch connectors
7. Turn signal switch connector
8. Windshield wiper and washer switch con-
nector
9. Steering angle sensor connector
10. Turn signal and hazard switch connector
15—12

COMBINATION SWITCH 1 5
INSPECTION
1. Check for continuity or the resistance between the
terminals in each position with an ohmmeter.
2. If the continuity or resistance is not as specified,
replace the switch.
86U15X-008
Light, dimmer, and passing switch

O
O:
indicates continuity
—-—Terminal
Position •—--__ HB HL HU BA BTN TNS
Headlight
Low beam O-n -O
—O
0--O
Headlight
Low beam 0--O
Headlight
High beam n
D
n Headlight
High beam o
Headlight
High beam
Passing O-
Tail, parking O--O

76G15X-027
15—13