ignition MAZDA 626 1987 Workshop Manual

1
5
CRUISE CONTROL SYSTEM
Checking
the
System
Check table O:
Represents: Light ON
X: Represents: Light OFF

CHECK LIGHTS (correct response)
ACTUATOR 5
CHECK ITEMS AND CONDITIONS

MAIN
SW

VAC
i
VENT2 VANT1
i
'
CLUTCH/BRAKE
SW

CONBINATION/INH

S

'
GENERATOR

TROUBLESHOOTING (INCORRECT RESPONSE)

1. MAIN SW. CONTINUITY:
• Ignition switch
ON
• Main switch
ON O O O o
X
A/T
O
M/T X

O
or X
ALL LIGHTS OFF: Check ignition switch, main switch, fuse, and associated harness termi-nals and connectors
2. INHIBITOR SW. CONTINUITY:
• Ignition and main switch ON. • Shift lever
to "D"
(A/T)
• Depress brake pedal

o o o o
X X
0
or X
COMBINATION/INH. SW. LIGHT ON:
Check inhibitor switch and associated
harness.
3. BRAKE SW. CONTINUITY: • Ignition and main switch
ON

• Shift lever
to
"D"
(A/T)
• Depress brake pedal

o o o o 0
X
o
or X
CLUTCH/BRAKE SW.LIGHT OFF:
Check brake switch and associated
harness.
4. CLUTCH SW. CONTINUITY:
• Ignition switch
ON
• Main switch
ON
• Depress clutch pedal

o o o 0 o
X
O
or X
CLUTCH/BRAKE SW. LIGHT OFF: Check clutch switch and associated harness.
5. "SET" POSITION
OF
COMBINA-TION SWITCH:
• Ignition switch
ON

• Main switch
ON
• Shift lever
to "D"
(A/T) • Push
to
"SET" position
of
com-bination switch

o o o o
X
o
O
or X
COMBINATION/INH.
SW.
LIGHT OFF: Check "SET" position of combination switch and associated harness.
6. "COAST" POSITION
OF
COMBI-NATION SWITCH • Ignition switch
ON

• Main switch
ON
• Shift lever
to "D"
(A/T) • Turn
to
"COAST" position
of
combination switch

o o o o
X
o
O
or X
COMBINATION/INH.
SW.
LIGHT OFF: Check "COAST" position in combina-tion switch and associated harness.
7. "RESUME" POSITION OF COMBI-NATION SWITCH
• Ignition switch
ON
• Main switch
ON
• Shift lever
to "D"
(A/T)
• Turn
to
"RESUME" position
of
combination switch

o o o o
X
o O
or X
COMBINATION/INH.
SW.
LIGHT OFF: Check "RESUME" position of combi-nation switch and associated harness.

76U15X-198
15—86

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

AUTO ADJUSTING SUSPENSION (AAS) 1 5
Checking Condition
Note:
Turn the ignition switch OFF to reset the con-
trol unit before each test.
Condition A
1. Turn the ignition switch ON.
2. Set steering wheel in the straight-ahead position,
and check the output pattern.
86U15X-154
Condition B
1. Turn the ignition switch ON.
2. Turn the steering wheel right and left, and check
the output pattern.
86U15X-155
•

/

AUTO ADJUSTING SUSPENSION I- AUTO—i SOFT NORMAL SPORT
Condition C
1. Turn the ignition switch ON.
2. Change the AAS switch from NORMAL to SPORT
or from SPORT to NORMAL, and check the out-
put pattern.
86U15X-156
Condition D
1. Operate the vehicle on a chassis roller.
2. Check the output pattern at above 15 km/h (9.3
mph).
Caution
a) Block the rear wheels.
b) In vehicle equipped with ABS, ABS warn-
ing light may come on, which is not a fail-
ure. The light goes off by turning ignition
switch OFF and again ON.
86U15X-157
15—95

AUTO ADJUSTING SUSPENSION
(AAS) 1 5

AAS-3
Normal operation
or
failure
of
the wir-ing harness (Fuse box
to
Control unit, Control unit
to
Body ground)
Check the voltage between each terminal
of
the con-trol unit connector and
a
body ground with ignition ON.
Terminal Voltage
G(B) OV
J(B) OV
K (BY) Approx.
12V
OK
Normal operation.

NG

Replace TURN 15A fuse
or
repair the wiring harness (Fuse box
to
Control unit, Control unit
to
Body ground.)

86U15X-161
AAS-4

Failure
of
wiring harnesses (Fuse
box

to Control unit, Control unit
to
Body
ground).
Check the voltage between each terminal
of
control unit connector and
a
body ground with ignition
ON.

Terminals Voltage
G (B) OV
J (B) OV
K (BY)
ADDTOX.
12V
OK
Replace the control unit.

NG

Replace TURN 15A fuse
or
repair the wiring harness-
es (Fuse box
to
Control unit, Control unit
to
Body
ground.)

86U15X-162

15-99

1 5 AUTO ADJUSTING SUSPENSION (AAS)
AAS-5

Failure
of
the front actuators
or the
wiring harness (Control unit
to
Front-right
or
front-left actuator)
Check the voltage between each terminal
of
front-right and front-left connectors and
a
body ground with ignition ON.
Terminal Voltage
Left side D (BR) Approx.
12V

Right side D (BR) Approx.
12V
NG
Replace POWER WIND 30A fuse
in
fuse box
or
wir-ing harness (Fuse box
to
Actuators).

OK

Disconnect the front-left actuator connector
and
check the voltage between each terminal
of
the con-trol unit connector and
a
body ground with ignition ON.
Terminal Voltage
A (WR) Approx.
12V

B (WL) Approx.
12V

C (WY) Approx.
12V
NG
OK

Reconnect the front-left actuator connector.
Disconnect the front-right actuator connector and check the voltage between each terminal
of
the con-trol unit connector and
a
body ground with ignition ON.
Terminal Voltage
A WR) Aoorox.
12V

B (WL) ADDrox.
12V

C (WY) Approx.
12V

Check the voltage between each terminal
of the
front-right actuator connector and
a
body ground with ignition
ON.

Terminal Voltage
A (WR) Approx.
12V

B (WL) Approx.
12V

C (WY) Approx.
12V
NG

Replace front-right
ac-

tuator.

OK

Repair the wiring har-ness (Front-right actua-tor
to
Control unit).

NG

Check the voltage between each terminal
of
the
front-left actuator connector and
a
body ground with
ignition ON.
Terminal Voltage
A (WR) Approx.
12V

B (WL) Approx.
12V

C (WY)
|
Approx.
12V
OK

Replace the control unit.

NG OK

Replace front-left
ac-
tuator.
Repair wiring harness (Front-left actuator
to
Control unit).

86U15X-163
15-100

AUTO ADJUSTING SUSPENSION (AAS) 1 5

AAS-6
Failure
of
the rear actuators
or
wiring harness (Control unit
to
rear-right
or
rear-left actuator)

vi i11 1vuuuyu tw/v^ii I^CI^I i id i i in I«I wi i
right and rear-left actuator connectors and
a
body ground with ignition ON.
Terminal Voltage
Left side D (BR) Approx.
12V

Right side D (BR) Approx.
12V
NG
Replace POWER WIND 30A fuse
in
fuse box
or
wir-ing harness (Fuse box
to
Actuators).

OK

Disconnect the rear-left actuator connector and check the voltage between each terminal
of
the control unit connector and
a
body ground with ignition ON.
Terminal Voltage
0 (YL) Approx.
12V

Q (YR) Approx.
12V

R (YG) Approx.
12V
NG

OK
Reconnect the rear-left actuator connector.
Disconnect the rear-right actuator connector and check the voltage between each terminal
of
the con-trol unit connector and
a
body ground with ignition ON.
Terminal
'
Voltage
0 (YL)
ADDrox 12V

Q (YR)
ADDrox. 12V

R (YG} Approx.
12V

NG
OK
Replace the control unit.
Check the voltage between each terminal
of
the rear right side actuator connector and
a
body ground with ignition ON.
Terminal Voltage
A (YR) Approx.
12V

B (YG) Approx.
12V

C (YL) Approx.
12V
NG
Replace rear-right ac-
tuator,
OK

Repair wiring harness (Rear-right actuator
to
Control unit).
Check the voltage between each terminal
of
the rear-left actuator connector and
a
body ground with igni-tion ON.
Terminal Voltaae
A (YR) Approx.
12V

B (YG) ADDrox.
12V

C (YL) Approx.
12V

NG
Replace rear-1 eft
ac-

tuator.
OK
Replace wiring harness (Rear-left actuator
to
Control unit).

86U15X-164
15—101

1 5 AUTO ADJUSTING SUSPENSION
AAS-7

Failure
of
AAS switch
or
wiring har-ness (Fuse box
to
Control unit and AAS switch, AAS switch
to
Control unit and Body ground
Check the voltage between each terminal
of
AAS switch connector and
a
body ground with ignition ON.
Terminal Voltage
F (BY) 12V
H (B) OV
NG Replace METER
10 or
15A fuse
or
repair the wiring harness (Fuse box
to
AAS switch, AAS switch
to
Body ground).

OK

Check the operation
of
the AAS switch referring
to
page 15—104.

, OK

Check
for
continuity, between
D
(LY) terminal
of
con-
trol unit and
D
(LY) terminal
of
AAS switch.

OK

Replace the control unit.

A AS-8

Failure
of
speed sensor
or
steering wheel angles sensor
or
wiring harness (Control unit
to
Meter, Control unit
to
Angle sensor).

NG
Replace the AAS switch.

NG
Repair wiring harness.
Disconnect the control unit connector, and check the resistance between the terminals with steering wheel in straight ahead position with
an
ohmmeter.
Terminal Resistance
A(G)
-
D(GW) Approx.
25
k£2
' A(G}
-
C(GY) Approx.
50 kfl

C(GY)
-
D(GW) Approx.
25
kJ2

NG
Check the steering angle sensor referring
to
page 15—16

OK

Go
to
AAS-1 routine.

OK

Repair the wiring harness (control unit
to
Angle
sensor).

76G15X-083
15-102

AUTO ADJUSTING SUSPENSION 1 5
AAS-9
Failure of speed sensor or wiring har-ness (Control unit to Meter, Fuse box to Control unit, Control unit to Body ground)
Replace METER 10 or 15A fuse or repair the wiring harness (Fuse box to Control unit, Control unit to Body ground).
Check the voltage between each terminal of control
unit connector and a body ground with ignition ON.
Terminal Voltage
G (B) OV
J (B) OV
K (BY) Approx. 12V
OK
Go to AAS-1 routine.
76G15X-084
15—103

1 5 AUTO ADJUSTING SUSPENSION
Actuator
Inspection
1. Turn the ignition switch ON.
2. Alternately switch ON the "NORMAL" and
"SPORT" switches. Check whether the shaft of the
actuator installed on the front and rear damper
operates. (Visual inspection)
86U15X-167
86U15X-168
76G15X-095
3. If the actuator does not operate, disconnect the ac-
tuator connector and check for a few ohms resis-
tance between the terminals.
Terminal Resistance
A(WR) - D(BR)
Front B(WL) - D(BR)
C(WR) - D(BR) 2-8 (fi) A(YR) - D(BR) 2-8 (fi)
Rear B(YG) - D(BR)
C(YL)— D(BR)
AAS 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.
Position Terminal
SOFT

NORMAL
SPORT
O
o—o
-o
o
o
o
o
g
-o
-o -o

O
O: Indicates continuity
Steering Wheel Angle Sensor
Inspection
See page 15—16
Vehicle Speed Sensor
Inspection
See page 15—88
76G15X-085
15—104

1 5 AUDIO SYSTEM
ADJUSTMENT (MTR)
Antenna adjustment
Use the following adjustment procedure to obtain op-
timum antenna and radio reception sensitivity.
1. Extend the antenna fully.
2. Set the ignition key to ACC.
3. Turn on the radio, and set it to AM reception.
4. Tune in a distant station with a weak signal at
around 1400 kHz. If such a station cannot be
found, use static to make the adjustment.
5. Turn the antenna trimmer adjustment screw to the
left and right to find the maximum sensitivity (of ei-
ther the broadcast or the static).
Note
If there is no change in the sensitivity, either
the tuned signal is too strong, or there is an
antenna malfunction or broken wire.
POWER ANTENNA
STRUCTURAL VIEW
1. Antenna motor
2. Antenna
FM M >08 ST ' I' tl -3-lx

0


[ AM s» TO too"I30"IM
J
A
FM | FM
B
I FH | fH
M FM
III
56G15X-106
15-114