relay MAZDA 626 1987 Manual Online

1 5 SLIDING SUNROOF
CIRCUIT DIAGRAM

BATTEHY

© © P o-

B
[Fj -
80A
X-01
ff

WR [F] X-01 MAIN
X-06
FUSE

X-ffij
4 |

-WR [D]-
JB-09
©
Hit

LR
R|

LR [Fr) REAR HATCH

^T-06 T-06

BlFrj

Bl
i iii
-LR [In] -
15®
— JB-IO ® ROOM

^JB-03(

[
B[D| i
-J1
Unleaded Fuel (Except Sweden & West Germany)
X-D2
IGN SW

VX-OZ

BW |D|

r-oe T-01 JB-10 © 5SA@ ^JB-07®
= = = = = ^ T-05
BrW"|Frj RW IFi]

^ X-jfi

RW [R]
BrW'[H2| RW [R2|
LR
T-04

SUNROOF REUY No.1

I fp LW-' ly
4f - = - --

LW
S.G LY

REAR HATCH MOTOR
T-01 Connector Between Interior Light Harness [In] and Sunroof
T-02 Sunroof Sw

LG
LW G (±±±

B
l. LY

GO
LW LG ±±±

LY
L B

T-03 Sunroof Motor
Y
L LY YG
pL=LX Jh
TTTT1
YR
B
LG LW
YG
LY L Y
Ntttt) TTTT
LW LG
B YR

T-04 Sunroof Relay No
1

G
Y G
r±±±-

B
« L

T-05 Sunroof Relay No
2

G
YR G

B
x YG

T-06 Rear Hatch Sw
|
BrW
B

LR
RW

5 Door
T-07 Rear Hatch Motor [R3] RW
*

B;W
*
15-90
86U15X-149

SLIDING SUNROOF 1 5
TROUBLESHOOTING
Sunroof does not operate correctly.

Check SUNROOF 15A fuse.
Turn ignition switch
ON

Check the voltage
at
each terminal
of
the sunroof
re-
lay No.
1
and No.
2.

Relay Terminal Voltage
No.
1

G 12V
No.
1
G 12V No.
1

B OV
No.
2

G 12V
No.
2
G 12V No.
2

B OV

OK

Check the sunroof relays. Refer
to
page 15—92.

OK

Check the voltage
at
each terminal
of
the sunroof motor.

OK

Check the sunroof motor and limit switch. Refer
to
page 15—92,
93.
OK

Check
for
12V
at L
terminal
of
the sunroof motor connector.

OK

Check the voltage
at
each terminal
of
the sunroof switch connector with each roof condition.

OK

Terminal Voltage
Y OV
YR OV
YG 12V
Terminal Roof condition Voltaae
L Close 12V
LY Close 12V
LG Open 12V
LW Tilt
up
12V
LR Any time 12V
B Any time OV
Check the sunroof switch. Replace
if
necessary.
Re-
fer
to
page 15—92.

NG
Repair the harness. (Fuse box
to
relay, Relay
to

body ground)

NG
Replace the relays.

NG
Repair the harness. (Relay
to
motor).

NG
Replace the motor and limit switch.

NG
Repair the harness. (Relay
to
motor)

NG
Repair the harness. (Motor
to
switch Fuse box
to

switch Switch
to
body ground)

76G15X-078
15—91

1 5 SLIDING SUNROOF
INSPECTION
Switch
Use an ohmmeter to check the continuity of the ter-
minals of the switch.
If continuity is not as indicated, replace the switch.

Terminal
Position

OFF

Slide
SW

Tilt
SW

OPEN
CLOSE

UP

DOWN

2a

O-

2b 6a

-O

6b

O-

6c

O

6d

O
76U15X-156
O—O:
Indicates conductive

6e 6f

-O
-O
-o
o—o
6e 6c 6a /-i 1 '-v.
=!= ck
T T T
6f 6d 6b
e c a
nWi
ri
a c
b e f
76U15X-314
Relay
1. Check the continuity between a—b and c—f.
2. Apply power source to the terminal a.
3. Connect the negative lead to the terminal b.
4. Check the continuity between c—e.
Motor
1. Disconnect the connector of the motor.
2. Apply power source to YR and connect Y to the
ground.
3. Check that motor turns in the direction from the tilt
up, to the closed, to the open position.
4. Reverse the connection and check motor turns
from the open, to the closed, to the tilt up position.
76U15X-315
15-92

1 5 POWER DOOR LOCK
TROUBLESHOOTING

Terminal Voltage
WG 12V
B OV
Check the voltage
at GB
terminal
of
the power door lock relay with each switch condition.
Terminal Condition Voltage
GB Lock 12V GB Unlock OV

OK

Check the voltage
at R
and
G
terminal
of
the power door lock relay with each switch condition.
Terminal Condition Voltaae
R Lock OV R Unlock 12V
G Lock 12V G Unlock OV

Power door lock does not operate.

Check DOOR LOCK 30A fuse.

OK
NG
Short circuit.
Check the voltage
at
each terminal
of
the power door lock relay connector.

NG
Repair the harness. (Fuse box
to
relay, Relay
to
ground)

OK

Check the power door lock switch. Refer
to
page 15-107.

OK
NG
Replace the switch.

NG
Repair the harness. (Door lock switch
to
relay)

NG
Replace the door lock relay.

OK

Check the power door lock motor. Refer
to
page
15-107.

OK

Repair the harness. (Relay
to
each motors)

NG
Replace the door lock motor.

76G15X086
15—106

15 AUDIO SYSTEM
AM/FM MULTIPLEX RADIO (ETR)
To front speaker
To cassette deck or equalizer
a Speaker-L © a Motor antenna (Earthed when radio is ON) b Speaker-L ©
a Motor antenna (Earthed when radio is ON)
c Speaker-R © b Illumination
d Speaker-R © a Battery © c ACC ©
1 Output-L ©
To AMP 2 Input-L ©
1 Output-F-R © 3 ACC ©
2 Battery © 4 Illumination
3 Output-F-L © 5 Signal ground
4 Output-F-R © 6 Input-R ©
5 Output-F-L © 7 Output-R ©
6 Ground 8 Not used
E Shield ground E Shield ground
To AMP To cassette deck
or equalizer
56G15X085
AM/FM MULTIPLEX RADIO (MTR)
a Antenna relay (Earth when radio is ON)
b Illumination
c Battery (ACC)
To front speaker
c a
1 Output-R-R © Output-F-R ©
2 ACC © ACC ©
3 Output-R-L © Output-F-R ©
4 Output-R-R © Output-F-R ©
5 Output-R-L © Output-F-L ©
6 Ground Ground
E Shield ground Shield ground
a Speaker-L ©
b Speaker-L ©
c Speaker-R ©
d Speaker-R ©
To rear AMP To front AMP
Not used
(Never connect
back-up line)
1 Output-L ©
2 Input-L ©
3 ACC ©
4 Illumination
5 Signal ground
6 Input-R ©
7 Output-R ©
8 Not used
E Shield ground
To cassette
deck
56G15X-086
15-110

AUDIO SYSTEM 1 5
CASSETTE DECK
To radio
a Antenna relay (Earthed when radio is ON)
b Illumination
c Battery (ACC) ©
Battery (ACC)©
. • Q-
fi0
m
®
jqj
To radio
/
1 Input-L ©
2 Output-L ©
3 Battery (ACC) ©
4 Not used
5 Signal ground
6 Output-R ©
7 Input-R ©
8 Not used
E Shield ground
»
B /1 ^C
a Antenna relay (Earthed when radio is ON)
b Illumination
c Battery (ACC) ©

0

56G15X-088
CASSETTE DECK (SYSTEM 3 AND 4)
To radio
a Power antenna
b Illumination
c Battery (ACC) jm
a Not used
b Not used
c Speaker ©
d Speaker ©
To radio
JHL
a Speaker-L ©
b Speaker-L ©
c Speaker-R ©
d Speaker-R ©
To rear
Blue color
V m.
"T*.
a Power antenna
b Illumination
c Battery (ACC) ©
56G15X-089
15—111

AUDIO SYSTEM 1 5
Power Antenna Circuit
86U15X-194
inspection Of Power Antenna Relay
1. Check the voltage at each terminal of the relay con-
nector harness side with each condition.

Terminal Condition Voltage
LW Ignition switch ACC 12V
BY Ignition switch
ON
12V
LgW Ignition switch ACC and radio
power switch
ON
OV
LR Any time 12V

76G15X-096
86U15X-196
If not, repair the harness.
2. Turn the ignition switch on, and check the opera-
tion of the power antenna with each condition.

Condition Antenna operation
GW wire
is
connected
to a

body ground Rises
GW wire
is
not connected to
a
body ground Goes down

If the power antenna does not operate, replace the
power antenna relay or power antenna motor.
15—115

16
AIR CONDITIONING
SYSTEM
OUTLINE 16— 2
AIR DISTRIBUTION 16— 2
AIR CONDITIONING COMPONENTS 16— 4
TROUBLESHOOTING GUIDE 16— 5
CIRCUIT DIAGRAM 16— 6
REFRIGERATION SYSTEM 16— 8
COMPRESSOR 16—13
ON-VEHICLE INSPECTION 16—13
REMOVAL OF COMPRESSOR 16—13
DISASSEMBLY OF MAGNETIC
CLUTCH 16—14
DISASSEMBLY OF COMPRESSOR 16—16
ASSEMBLY OF COMPRESSOR 16—18
ASSEMBLY OF MAGNETIC CLUTCH 16—20
PERFORMANCE TEST OF
COMPRESSOR 16—22
INSTALLATION OF COMPRESSOR 16—23
CONDENSER 16—24
ON-VEHICLE INSPECTION 16—24
REMOVAL OF CONDENSER 16—24
INSTALLATION OF CONDENSER.. 16—24
RECEIVER-DRIER 16—25
ON-VEHICLE INSPECTION 16—25
REMOVAL OF RECEIVER-DRIER... 16—25
INSTALLATION OF
RECEIVER-DRIER 16—25
COOLING UNIT 16—26
ON-VEHICLE INSPECTION OF
EXPANSION VALVE 16—26
REMOVAL OF COOLING UNIT 16—26
DISASSEMBLY OF COOLING UNIT 16—27
INSPECTION OF EVAPORATOR.... 16—27
ASSEMBLY OF COOLING UNIT.... 16—27
INSTALLATION OF COOLING UNIT 16—28
REFRIGERANT LINES 16—29
ON-VEHICLE INSPECTION 16—29
REPLACEMENT OF REFRIGERANT
LINES 16—29
A/C RELAY 16—30
REMOVAL OF RELAY 16—30
INSPECTION OF A/C RELAY 16—30
INSTALLATION OF A/C RELAY 16—30
THERMOSTAT 16—30
ON-VEHICLE INSPECTION 16—30
REMOVAL OF THERMOSTAT 16-30
INSTALLATION OF THERMOSTAT. 16—30
REFRIGERANT PRESSURE SWITCH 16—31
76G16X-001

OUTLINE 16
TROUBLESHOOTING GUIDE
Problem Probable cause Remedy Reference page
No blower
1. Main fuse (30
A) is
open Replace
operation
2 Malfunction
of
the blower motor Replace 3. Faulty resistor Replace 4. Malfunction
of
the blower switch Replace 5. Open
or
loose connection
in an
electrical circuit Repair 16—6,
7
Insufficient
1. Obstruction
in
the inlet
of
the blower unit Remove the obstruction 16-26
air
2. Clogged evaporator Clean the evaporator
with compressed
air
16-27 3. Frosted evaporator Check the thermostat 16-30 4. Air leakage Check for leakage
at
16-26 both sides
of
the cool-
ing unit

Compressor
1. Malfunction
of
the A/C relay Check operation 16—30
does not run,
2. Malfunction
of
the thermostat Check operation 16—30
or runs
3. Malfunction
of
the refrigerant-pressure switch Check operation 16—31
insufficiently
4.
Air
conditioner fuse (15
A)
failure Replace 5. Compressor drive belt
is
loose Readjust 16—23
6. Internal problem
of
the compressor Repair
or
replace
the
16—13
compressor 7. Battery voltage too low Recharge the battery 8. Layer short
in
the magnet coil Replace 9. Clutch face dirty with
oil
Clean
or
replace the 16-13
clutch 10. Excessive gap between the drive plate and
the
Adjust the gap 16-13
pulley
11. Open circuit
in
the magnet coil Replace 16—13
12 Open circuit Repair 16-6,
7
Refrigeration
Normal pressures are:

pressure is
High pressure
1472—1765 kPa
abnormal (15—18 kg/cm2, 214—255 psi)
Low pressure
197—294 kPa
(2—3 kg/cm2, 29—42 psi)
when: ambient temperature 35°C (95°F)
engine speed 1,500
rpm
Low pressure
1. Internal malfunction
of
the compressor Repair
or
replace the 16-13

is too high
compressor
2. Faulty contact
of
the sensing bulb
of
the expan-Repair 16-26
sion valve 3. Faulty insulation
of
the sensing bulb
of
the expan-Repair 16—26
sion valve
4. Expansion valve open too much Replace 16—26

Low pressure
1. Insufficient refrigerant Charge with refrigerant 16-8

is too low
2. Receiver-drier
is
clogged Replace 16-25
3. Expansion valve
is
clogged Replace 16-26
4. Faulty thermostat Check operation 16-30 5. Frosted piping Clean
or
replace the 16—29
piping

High pres-
1. Poor cooling
of
condenser Check and clean 16-24

sure is too
2. Loose cooling fan drive belt Readjust 16—23

high
3. Too much refrigerant Discharge the excess 16-8
refrigerant 4.
Air in
the system Evacuate and charge 16-8
the system

High pres-
1. Insufficient refrigerant Charge with refrigerant 16-8
sure is too
2. Internal malfunction
of
the compressor Repair
or
replace the 16-13

low
compressor

76G16X-004
16—5

1 6 A/C RELAY
A/C RELAY
REMOVAL OF RELAY
1. Disconnect the negative battery cable.
2. Disconnect the wire harness connector
3. Remove the relay from the seal plate.
INSPECTION OF A/C RELAY
1. Using a circuit tester, check that there is continui-
ty between terminals (a) and (b).
2. Apply 12 volts across terminals (a) and (b), and
check whether there is continuity between termi-
nals (c) and (d). Replace if necessary.
INSTALLATION OF A/C RELAY
1. Install the relay to the seal plate.
2. Connect the wire harness connector.
3. Connect the negative battery cable.
THERMOSTAT
ON-VEHICLE INSPECTION
1. Operate the air conditioner at MAX. COOLING.
2. Turn the ECO switch to ON.
3. Block the air inlet of the blower unit with a thick
piece of paper.
4. Check whether the relay is turned OFF when the
temperature of the evaporator drops below 7°C
(44.6°F).
5. Turn the ECO switch to OFF.
6. Check whether the relay's turned OFF when the
temperature of the evaporator drops below 1°C
(33.8°F).
REMOVAL OF THERMOSTAT
1. Disconnect the negative battery cable.
2. Disconnect the A/C wiring harness.
3. Remove the thermostat from the cooling unit.
INSTALLATION OF THERMOSTAT
1. Install the thermostat by using the two screws.
2. Connect the A/C wiring harness.
3. Connect the negative battery cable.
76G16X-007
16-30