lock MAZDA 626 1987 Workshop Manual

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

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
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

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

MAIN FUSE BLOCK
1
5

MAIN FUSE BLOCK
STRUCTURAL VIEW
LHD
and RHD
General, Middle East,
ECE
(Carburetor model)
0

U
%
s
5
»

00000 USE
THE
DESIGNATED FUSE ONLY
ECE
(EGI
model)
£
o 2Z
o u
^ *5

4
-
<
—
o
O
n

2
O
<

a
HI

<
°
I®
a
o o-S
Ul 51 Ui
^

tB USE
THE
DESIGNATED FUSE ONLY
>1

P

West Germany (Carburetor
and EGI
model)
Q
o o
^
*S

lu

u
<
EL
°
33 JZ< gis
2 ? «
Q-
o
S3 ill
â„¢

N
TiSE
THE
DESIGNATED
FU

Unleaded fuel model
(EGI)

USE
THE
DESIGNATED FUSE ONLY
PTC
30A
(Sweden)
HEAD
40A
(Sweden)
BTN
40A
(Sweden)
LHD
and RHD
General,
ECE
(Diesel model) Except Sweden
1 T
1
•N

HEATER
[
40A (COOLING FAN
[
30A

z
<
m
3
MAIN
BOA
;

/I
HEAD
40A
ADD
FAN 30A

/ xx
West Germany (Diesel model)

fl
,
v

K
<
t
o

,o
,

p <
f—
o
0.
o

86U15X-004
15—9

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

CLUSTER SWITCH 15
CLUSTER SWITCH
STRUCTURAL VIEW
For Left Hand Drive
Rocker type
-A

M

Except
ECE
Rear def. SW
Push type
-<3»-
ivi
a
Rear
wiper
SW
Rear +washer SW
Digital clock
' Oscillator SW
Hazard SW
A
Digital clock
/ Oscillator SW ./ i
A
Hazard SW

Rear def.
SW
ECE only
lot
4 Hazard
SW
Rear fog
light
SW
76G15X-003
15—17

CENTRAL PROCESSING UNIT (CPU) 1 5
REMOVAL AND INSTALLATION
1. Disconnect the negative battery cable.
2. Disconnect the CPU connectors.
3. Release the lock and remove the CPU from the
joint box.
4. Install in the reverse order of removal.
ON-VEHICLE INSPECTION
Note: Check the voltage between "a through
I" terminal and ground.
Check the continuity between "m,
n" terminal and ground.
86U15X-075

Terminal Connecting
to
Measurement condition Measurement value
a Interior light and courtesy lights Any time Approx.
12V

b Batterv Anv time Approx.
12V

c No used
— —

d Ground Anv time OV
e Seat belt warning light Ignition switch
ON
Approx.
12V

f Enaine control unit Enaine runnina Approx.
12V

g Key cylinder illumination light Any time Approx.
12V

i Key reminder switch Insert the key into the cylinder
Pull out the key from the cylinder
Approx.
12V

OV
j Ignition switch (ON) Ignition switch
ON

Ignition switch OFF
or
ACC
Approx.
12V

OV
k Ignition switch (ACC) Ignition switch
ON or
ACC
Ignition switch OFF
Approx.
12V

OV
I Light switch (In the combination switch) Turn the light switch ACC and
ON

Light switch OFF
Approx.
12V

OV
m Seat belt switch Seat belt fastened
Seat belt unfastered

OQ

OO
n Door switch Door closed
Door open
OO
on

76G15X-009
15—43