1987 MAZDA 626 fuse box

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

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

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

LOCATION OF UNIT, RELAY AND SWITCH 1 5
LOCATION OF
UNIT,
RELAY AND SWITCH
STRUCTURAL VIEW
Door SW
Power window SW
AAS control unit
Cruise control unit
Relay box
(EGI and Diesel model)
Engine control unit
Brake fluid level sensor
Main fuse block
(EGI model)
Main fuse block
(Carburetor model) | \ Relay box
Main fuse block Relay box
(Diesel model) (Carburetor model)
Power window SW
Door SW
Door lock SW
AAS control SW
CPU and joint box
86U15X-002
15-7

5
IGNITION
SWITCH
76G15X-026
B IG1
ST ST •S
Key reminder switch
~
Key reminder switch
ON
Lock
ACC
ACC
69G15X-014
REPLACEMENT
Disconnect the negative battery terminal. 30, 40 and
60A fuses: pull out and push in a new fuse.
80A fuse:
1. Remove the main fuse box.
2. Open the cover.
3. Remove the terminal.
4. Pull out and push in a new fuse.
IGNITION SWITCH
INSPECTION
1. Use an ohmmeter to check continuity of the termi-
nals of the switch.
2. If continuity is not as specified, replace the switch.
-^Terminal
Position"""-""---^^ B ACC IG2 IGi ST c d
LOCK Remove LOCK Insert 0--0
ACC O--0 O--0
ON O--O o--O o--o
ST r -O O--o ST -O O--o
): Indicates continuity
15—10

JOINT
BOX AND FUSE
1
5
JOINT BOX AND FUSE
STRUCTURAL VIEW
Joint box Circuit breaker
(Rear window
defroster)
Reset button
Fuses
West Germany
(REAR FOG* RADIO 15A 15A (HEADCLEANER) 20A
(POWER 30A WIND) TAIL (LH) 15A STOP 15A
TAIL (RH) 15A METER 15A TURN 15A
ROOM 15A f(D00R LOCK) [ 30A c
HORN 5A
(AIR COND)' 15A (COOLING 20A FAN>I ENGINE 15A
(REAR 15A WIPER) WIPER 20A (SUN ROOF) [ 15A
ECE, LHD and RHD General (Diesel model)
. Q .
(REAR FOG) 15A J RADIO 15A (rHEADCLEAMEfii I joa J (POWER 1 30A WIND)j (DIM DIP) 15A ( HAZAARD ' I TAIL 15A METER 15A TURN 15A
' ROOM ' ISA j flBOOR LOCKl"1 L STOP 1SA -[(AIR COND) 15A J ' ENGINE 15A
(REAR 15A WIPER) WIPER 20A (SUN ROOF) I 16A
RHD General
only
UK, RHD General
(REAR FOG)
[
15A J
RADIO 15A (HEADCLEANER) 20A
(POWER 30A WIND) (DIM DIP) 15A HAZARD 10A
TAIL 15A METER 10A TURN 15A
ROOM 15A (DOOR LOCK) 30A STOP 15A
(AIR COND) 15A '(COOLING 20A FAN) ENGINE 15A
(REAR 15A WIPER) WIPER 20A (SUN ROOF) [ 15A ,
ECE, Middle East, LHD General
Q
(REAR FOG) 15A J RADIO 15A (HEADCLEANER) 20A
(POWER 30A WIND) HAZARD 10A
TAIL 15A METER 15A TURN 15A
ROOM 5A (DOOR LOCK) 3CA STOP tSA ] (AIR CONO)| . ISA jj| ((COOLING! ( ENGINE 1 J [
BOA
FAfJ)J [ 15A J
(REAR 15AWIP£R), ^ C WIPER "1[SUN HOOF?
1)J
[ 2QA
J
[ 15A
West Germany (Diesel model)

MAIN (fWl
ISA I
MALM (LM1
15A
DIM iLHI
ISA
PEAfl FOCii
I 'SA | RAQIO T5A I
HEAP CLEANEF*
1 I (POWEfl I
3PA WI^D;. TAIL (LH)
15A
)C
TAIL I ISA METER 1OA TURN 15A FIOQM
(DOOR LOC*C|
HOflN 15A Jt 1SA

(
AIR COND)
jy (COOUNQ
gqA FAN)
ENGINE 16A

|fl£AR WlPEFl!
ILJSi '
DEfOO
3 OA
Dtf
WtPEfl
USUNROQF Jl JPA H 15A [
86U15X-006
15-11

15 METER
TROUBLESHOOTING
Note
Check the METER 10 or 15A fuse in the fuse box for fusing before troubleshooting.
76G15X-031
76G15X-032
15—24

1 5 WARNING LIGHT AND SENDER
TROUBLESHOOTING
Note
Check the "Meter 10 or 15A" fuse in the fuse box before troubleshooting. If normal, refer
to the following troubleshooting chart.
Brake System Warning Light
76G15X-033
76G15X034
15-32