fuse MAZDA 626 1987 Repair Manual

1 5 TURN AND HAZARD LIGHT
TROUBLESHOOTING
Note
Check the TURN 15A fuse in the fuse box before troubleshooting.

Terminal Voltage
H (BG) 12V

OK

Check the voltage between each terminal
of
flasher unit connector and
a
body ground with each con-dition.
Terminal Condition Voltage
A(B) Any time OV
E (BR) Turn switch
is
Riaht 12V
F (GY) Turn switch
is
left 12V
H (Br) Anv time 12V

OK
Turn function does not operate.

Check the flasher unit. Refer
to
page 15—47

OK

Check the turn signal switch. Refer
to
page 15—14

OK
NG
NG

Check the voltage
at H
(BG) terminal
of
the combina-tion switch (Turn).
Replace the unit.
Replace the switch.

NG
Repair harness. (Fuse box
to
combination switch)
Repair harness.

NG

Terminal Wiring harness
A (B) Flasher unit
to
ground
E (BR) Flasher unit
to
combination switch
F (GY) Flasher unit
to
combination switch
H (Bri Fuse box
to
Flasher unit
Check the lights and wiring harness (Each bulb
to a

body ground)

NG
Replace the lights
or
repair the wiring harness.

OK

Repair harness. (Flasher unit
to
each bulb)
76G15X-045
Hazard function does not operate. (Turn func-tion is normal)

Check the hazard switch. Refer
to
page 15—19,
20
OK
NG
Replace the switch.
Check the voltage
at
each terminal
of
the hazard
switch connector.
Terminal Voltage
B (GR) 12V
D (B) OV

15-46
NG
Repair the wiring harness. (Flasher unit
to
hazard
switch, hazard switch
to
ground)

OK

Check the flasher unit. Refer
to
page 15—47
NG
Replace the unit.

76G15X-046

STOP LIGHT 1 5
CIRCUIT DIAGRAM
TROUBLESHOOTING
Note
Check the STOP 15A fuse in the fuse box before troubleshooting.
86U15X-085
15—49

1 5 STOP LIGHT
Both side stop lights do not illuminate when brake on.

Check the voltage
at A
(GW) terminal
of
stop light switch connector.
NG

Terminal Voltage
A (GW) 12V
Repair harness. (Fuse box
to
stop light switch)

OK

Check the stop light switch. Refer
to
page 15—51
NG
Replace the switch.

OK

Check the voltage between each terminal
of
the stop and tail light checker connector and
a
body ground when brake
on.

Terminal Voltage
B(B) OV
C (WG) 12V
NG Repair the wiring harness. (Stop light switch
to
stop and tail light checker, stop and tail light checker
to
body ground)

OK
OK

Repair the wiring harness. (Stop and tail light checker to bulb, bulb
to
body ground)

76G15X-049
Light Checker
1. Check for continuity between terminals of the stop
and tail light checker.
Stop and tail light checker (except West
Germany)
3 c £
r -r •
I i f 1 3
76G15X050

Terminal Continuity Terminal Continuity Terminal Continuity
i + i -
Continuity
+
1
-
Continuity
i + i -
Continuity
a-b
O
c-d
X
f-a
X

a-c
O
c-f
o
f-h
0

a-d
X c-g X g-a o

a-f
o
c-h
o
g-b
o

a-a
X
d-a
o a-c o

a-h
o
d-b
o
g-d
X

b-a
o
d-c
0
a-f
o

b-c
o
d-f
o
g-h
o

b-d
X
d-g
X
h-a
o

b-f
o
d-h
o
h-b
o

b-g
X
f-a
0
h-c
o

b-h
o
f-b
o
h-d
X

c-a
0
f-c
o
h-f
o

c-b
o
f-d
X
h-a
X

O: Indicates continuity
X: No
continuity

15-50

HEADLIGHT 15
Unleaded fuel model
OK

Check
for
12V
at
"RB" wire (when low and/or "RW" wire (when high)
of
combination switch
6
pin con-nector

NG
Check
for
12V
at
"RB" wire (when low and/or "RW" wire (when high)
of
combination switch
6
pin con-nector

NG
Replace combination switch
Check
for
12V
at
"RB" wire (when low and/or "RW" wire (when high)
of
combination switch
6
pin con-nector

OK

Check the voltage between each terminal
of
the headlihgt relay and
a
body ground.
Terminal Voltage
a (RW) 12V
c(R) 12V
NQ Repair harness
(a
terminal
—
combination switch
to
headlight relay,
c
terminal
—
main fuse
to
headlight relay)

OK
OK —
Replace the bulb(s)

76G15X-053
INSPECTION
Headlight Relay
Check for continuity between terminals of the relay.

Connecting
to
Terminal
12V Ground a b c d

— —
O— —O
a b O— —-O
O—O: indicates continuity

76G15X-054
15—55

1 5 PANEL LIGHT CONTROL
PANEL LIGHT CONTROL
CIRCUIT DIAGRAM
COMBINATION SW (Light Sw)
1 ? 3= o
5
B
*
SB c
52 "
o
-too u c E o E H Eil'y E 1 a tcsfi
86U15X-098
TROUBLESHOOTING
OK

Repair the wiring harness. (Fuse box
to
panel light controller, Panel light controller
to
body ground)

76G15X-056
15—56

Check the voltage between each terminal
of
the pan-el light controller connector and
a
body ground.
Terminal Voltage
B (RB) 12V
C(B) OV

15 REMOTE CONTROL MIRROR
TROUBLESHOOTING

Terminal Voltage
G (LW) 12V
H(B) OV

OK

Check the remote control mirror switch. Refer
to
fol-lowing inspection.

OK

Check for continuity between each terminals
of
the remote control mirror motor.
Terminal
Br

O
Lg
-O-

BrY

-O

O—O: indicate continuity

Remote control mirrors do not operate.

Check the voltage between each terminal
of
the
re-
mote control mirror switch connector and
a
body ground with ignition switch
in
ACC.
NG
Replace RADIO 15A fuse
or
repair the harness (Fuse box
to
switch, switch
to
body ground)

NG
Replace the switch.

NG
Replace the motor.

OK

Repair the harness. (Switch
to
Motor)
86U15X-124
86U15X-125
INSPECTION
Remote Control Mirror Switch
1. Remove the negative battery cable.
2. Remove the remote control mirror switch.
3. Check for continuity between the terminals using
an ohmmeter.

Position
Left
Right
Operation
Up
Down
Left
Right
Up
Down
Left
Right

9
O
o-
o
o
o
o-
o-
o
O-O—o
o-
o-
o~o
o
o-
o
o-
o-o
•o -o
•o

f

•o
-o
-O
o
-o
-o
o
o
o-o
-o-o
-o
o
•o
o

O—O: Indicates continuity

4. If continuity is not as specified, replace the remote
control mirror switch.
15—70

15 REAR WINDOW WIPER
CIRCUIT DIAGRAM

BATTERY MAIN FUSE X-01
X-01

REAR WIPER
&
WASHER SW GW [!]>• Control (Sectin Eb)
To Instrument Panel Light
D-01 Combination Sw [D]
LO
L B ±±±

LW
LB LR

D-02 Front Wiper Motor [F]
B
LR
LW
±±±
L LB L

D-03 Rear Wiper Sw [I] x
x GW
\±U±±
TTTT

(5 Door)
B
L BL

D-04 Rear Wiper Motor [R3]

^bGL (5Door)

D-05 Rear Washer Motor 1 D-06 Headlight Cleaner Sw
[

LY
RB

(5 Door)

LW GW
C-05 Washer Motor Assembly |Fj
LW
LY L

©I®T
T
LO

15-72
86U15X-127

REAR WINDOW WIPER 1 5
86U15X-132
INSPECTION
Operation Check of Rear Wiper Motor
1. Check that the motor operates continuously when
12V is connected to the (a) terminal and ground
is connected to the (b) terminal of the motor.
2. Start the motor again.
Disconnect the ground from the (b) terminal, and
then connect the ground to the motor body im-
mediately. Check that the motor shaft reaches the
auto-stop position, and that there is conductivity
through the grounding of the motor body.
Note:
Be sure to re-install the rubber seal correctly.
Operation Check of Rear Washer Motor
1. Using a voltmeter, measure the voltage between
the (b) terminal and a body ground with the igni-
tion switch ON.
2. If no voltage, check the fuse or repair the harness.
3. If the (b) terminal voltage is 12 V, connect the (a)
terminal to a body ground.
4. If the washer motor does not operate, replace the
washer motor.
76G15X-094
15-75

CRUISE CONTROL SYSTEM 1 5
CIRCUIT DIAGRAM

BATTERY

0
t
© o-
MAIN FUSE
X-05

—13 |F|-«-X-01
8QA X-01
X-02^ 15A JB-07 ® (1 OA) @
BW |D)
^-O
METER

From Combination Light Sw (Section Eb>
J*
TRB
[l|
MAIN SW

CLUTCH
SW

-BY ID]—
I iB-28 L-u^p——.L-1
~
—
LO,DI--JLO!D1
Lr
For West Germany
STOP SW
L-02nr iL-02

From Stop Light
.
checker (Section F)
GW
[I]

-BY [D] To Stop Light Checker GY.IDI
From Stop
Light Sw WG (Dj—
(Section F)
' '

L-01 Cruise Control Unit
|

B
L LW LO G GW
±±±LA±± TT
EC-Al
WG
MI LR
L-04 Cruise Control Sw [D]
L
LW
GR GY
GB
B
LR

L-05 Main Sw
[I]
riu^rii
^TTT1 GY BY B GW

L-02 Slop Sw
[
' (LV)

B-26 Clutch Sw (D]
LO
BY
m
RG LgB

L-03 Actuator
I
* GY G
r±±i
X GW GB
86U15X-147
15-83

1 5 CRUISE CONTROL SYSTEM
ON-VEHICLE INSPECTION (USING ACC CHECKER 49 9200 010)
76G15X-072
Note:
When checking the actuator on '88 models with EC-AT using this checker, the checker
should be modified as shown below in order to avoid damage of the EC-AT control unit.
Modification Procedure
1. Cut the wire at terminal no.6 indicated on ACC
checker connector.
2. Tape exposed end of wire cut in step 1 as shown.
This modification does not affect the usage of the ACC
checker except when used on the '81 RX-7 and 626
models. When the modified ACC checker is used on
these models, use a jumper wire and jump across
terminal no.6 to 3 indicated on ACC checker connec-
tor as shown.
Function of the ACC CHECKER
A. Check lights
Each item is verified by a check light, as described below.
Check light Check items
MAIN SW.
Ignition switch, fuse, main switch and associated wiring harness terminals and con-
nectors.

ACTUATOR—VAC
VAC coil continuity
in
the actuator and associated harness.

ACTUATOR—VENT 2
VENT
2
coil continuity
in
the actuator and associated harness.

ACTUATOR—VENT 1
VENT
1
coil continuity
in
the actuator and associated harness.

CLUTCH/BRAKE SW.
Clutch switch (M/T vehicles only), brake switch and associated harness

COMBINATION/INH. SW.
"SET", "COAST" and "RESUME" positions
in
the combination switch, inhibitor
switch (A/T vehicles only), and associated harness.

GENERATOR
Speed sensor output and associated harness.

76U15X-193
15-84