1987 MAZDA 626 Workshop Manual

1 5 REAR WINDOW DEFROSTER
REAR WINDOW DEFROSTER
STRUCTURAL VIEW
Rear window defroster relay
Rear window
defroster SW
86U15X-101
CIRCUIT DIAGRAM
86U15X-102
15-58

REAR WINDOW DEFROSTER 15
TROUBLESHOOTING
76G15X-057
15—59

15 REAR WINDOW DEFROSTER
INSPECTION
Defroster Relay
1. Check for continuity between terminals of the relay.

Connecting
to
a b c d
12V ground
a b c d

— —

a b -O
O
O:
Indicates continuity

2. If continuity is not as specified, replace the relay.
86U15X-104
15-60
Defroster Filament
1. Turn the rear window defroster switch ON.
2. Connect the + terminal of the voltmeter to the cen-
ter of each filament and the - terminal to the
body. The standard voltage at the center of each
filament is approximately 6V. If the meter indica-
tion is high, there is a short circuit between the cen-
ter and the grounded side of the filament.
If the indication is low or zero, the fault is between
the center and positive side.
Repairing Filament
1. Use paint thinner or ethyl alcohol to clean the
damaged part of the filament.
2. Attach tape to both sides of the damaged part of
the filament.
3. Using a small brush or marking pen, apply silver
paint (part no 2835 77 600) or equivalent to the
damaged part.
4. Let the paint set for 24 hours at 20°C (68°F) to
let it dry completely. (If a blow dryer is used to heat
it to 60°C (140°F), it can be dried in about 30
minutes.)
Note
a) Do not use the rear-window defroster until
the paint is dry.
b) Do not use gasoline or similar solvents to
clean the damaged part.

POWER WINDOW
STRUCTURAL VIEW
POWER WINDOW 1 5
66U15X-108
15-61

15 POWER WINDOW
CIRCUIT DIAGRAM
(Coupe/MX-6)
BATTERY
" 76G15X-010
(For Sedan and Hatchback)
Q @ X-01 X-01 0 o-l—^-O^O-S
1 RATTFRY
BOA
X-05 3 [Fl
IG:

POWER WINDOW
SW M-01'
ion I
X-19
X-19 JB-09® JB-07®
R [Drl]
£
BR
[R]—o-»-BW
[DJ—1 30A © pmJro w

nrhif II U U U J closeV open\ closeV open\ close\ openv closeV open
|—' 1-] J ; •»---" ^ £ : ~ ^
SIT if I?' Ill m II II
GW [DM J
X-19 4
RW [Drl 1 I LW[brl] YW[Drl]
GY (brl)WR [DM[ BL [Dl1]

RL [Drl |
"
GW [R]
RW

X-21
X-18:
=
|
Ir [R[ Ir BL [R1 BL
RW [Dr2]
GW [Or2j

M-03J
LW (Dr3[ BL [Dr2]
M-05:
rffl
GY [R] WR [I
BL [Dr3] YW [DM]
M-05 R[Di2] G[Dr2[
R [Dr3[ L [fir3[ R [Dr4] L [Dr4|

POWER WINDOW SW
POWER WINDOW MOTOR (FR) (RL) (PR)
15-62

POWER WINDOW
15

TROUBLESHOOTING
76G15X-011
76G15X-012
15—63

15 POWER WINDOW
76G15X-013
76G15X-014
15-64

POWER WINDOW 1 5
Power windows (except for driver's side) cannot be operated by main switch

Turn ignition switch
ON Note
Use only the main switch during the checking operation.

Check
for
12V
at
terminal
of
power window switch connector while operating main switch (driver's side)
Door Operation Wire
Passenger
side
Up "GW" Passenger
side Down "RW"
Rear left side
(except Coupe)
Up "LW" Rear left side
(except Coupe) Down "YW"
Rear right side
(except Coupe)
Up "GY" Rear right side
(except Coupe) Down "WR"

NG
Check power window switch (driver's side). Refer
to
page 15—66,
67.
OK

Check
for
12V
at
terminal
to
each door power win-dow switch connector
(5
pin) while operating main switch (driver's side)
Door Operation Wire
Passenger Up "GW"
side Down "RW"
Rear left side Up "LW"
(except Coupe) Down "YW"
Rear right side Up "GY"
(except Coupe) Down "WR"
Repair harness (Main switch—Switch
on
each door)

OK

Check
for
12V
at
"R" terminal and
"G"
terminal
of
each door switch connector
(5
pin) while operating main switch (driver's side)
•
Up: "R"
terminal
• Down:
"G"
terminal

NG

Check
for
12V
at
"R" terminal and
"G"
terminal
of
each door switch connector
(5
pin) while operating main switch (driver's side)
•
Up: "R"
terminal
• Down:
"G"
terminal

NG
Check switch
on
each door. Refer
to
page 15—67.
Check
for
12V
at
"R" terminal and
"G"
terminal
of
each door switch connector
(5
pin) while operating main switch (driver's side)
•
Up: "R"
terminal
• Down:
"G"
terminal

OK
76G15X-015
15—65