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

CRUISE CONTROL SYSTEM 1 5
CHECK LIGHTS (correct response)
ACTUATOR £
5 (O
W X
CHECK ITEMS AND CONDITIONS £ <0 z
VAC
CM I-1-z
Ul * < IE ffl X o V-
z o F < z ta
DC O 1-< DC Ui
TROUBLESHOOTING
(INCORRECT RESPONSE)
< S VAC UJ > < > -1 o o o UJ O
8. START THE ENGINE
• Shift lever to "N" position (A/T) O O O o X
A/T
O M/T X
O or X —
9. ACTUATOR OPERATION: (EGI model only) • After engine is started, set the slide switch "L" or "H". Then turn on check switch (keep in "D" position) Note: Engine speed should in-crease to 2,000—3,000 rpm. If over 4,000 rpm release the switch immediately.
o
X
1
o
X X X
A/T O M/T X
O or X
If engine speed does not come up to and remain
in
the
2,000
to
3,000
rpm. range, check the actuator and as-sociated harness.
10. SPEED SENSOR OUTPUT
Keeping idling condition, drive ve-
hicle slowly. o o 0 o X X 0 1 X
If GENERATOR LIGHT does not flash, trouble may be with speed sensor and associated harness.
76U15X-199
INSPECTION
Actuator
Measure the actuator solenoid resistance by using
an ohmmeter.
Check terminals Resistance
c-d
Approx. 25 to 35 ohms c — a Approx. 25 to 35 ohms
c — b
Approx. 25 to 35 ohms
76G15X-075
Cruise Control Unit
If there is an operation malfunction of the cruise con-
trol system, and no abnormal condition when check-
ing above, replace the cruise control unit and check
system operation.
Clutch Switch, Brake Switch
When removing these switches, turn each of them
so that the corresponding pedal height agrees with
the standard value.
76G15X-076
Brake pedal height: 222 ±1 mm (8.74 1820
Clutch pedal height:
216.5 ±8 mm (8.52 ±820 In)
in)
15-87

1 5 CRUISE CONTROL SYSTEM
Speed sensor
1. Remove the combination meter.
2. Connect an ohmmeter between "u" and "n" ter-
minals of the 22 pin connector.
3. Confirm continuity between terminals when rotat-
ing the speedometer cable shaft.
4. If not 4 times per rotation, replace the speedometer.
Inhibitor switch
Refer to Section 7B.
76G15X-077
—88

SLIDING SUNROOF 1 5
SLIDING SUNROOF
STRUCTURAL VIEW
86U15X-148
1. Slide panel
2. Deflector assembly
3. Motor assembly
4. Guide bracket
5. Driving cable
6. Guide bracket assembly rear
7. Tilt up switch
8. Slide switch
15—89

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

SLIDING SUNROOF 1 5
Limit Switch
1. Using hex-head wrench furnished in the glove box,
set the sunroof in each position.
76U15X-160
b d f h
2. Use an ohmmeter to check the continuity of the
terminals of the switch.
V. sw
LS1 LS2
\ Terminal color

e d a b c
Roof condition L LG YG LW LY
Open
o—
—O
Close O-I —O
Tilt
up
|—O
o— h-o

O—O: Indicates conductive

76U15X-161
15—93

1 5 AUTO ADJUSTING SUSPENSION (AAS)
AUTO ADJUSTING SUSPENSION (AAS)
CIRCUIT DIAGRAM
Combination switch iq Speed sensor
M
Panel light
control
AAS control unit
Steering angle sensor
H
N
Check connector
IG IG
Actuator (RR)
-P-Sl
-t-^J
—Pwsl
Actuator (RL)
Actuator (FR) P5fl
+
Actuator (FL)
QO M K GIE C A
ft N J HI F D B
86U15X-151
TROUBLESHOOTING GUIDE
The AAS control unit has a self-diagnosis function detecting the unit itself, electrical parts for AAS sys-
tem, and wiring harness open circuit, to inform mechanics. If it detects their malfunctions, outputs the
output pattern to A (LW) terminal of service connector according to the settled pattern for each mal-
function.
Troubleshooting against AAS system can be conducted by knowing the output pattern (See page 15—96,
97) to detect trouble location. 76gisx-o2o
TROUBLESHOOTING
How To Use Self-Diagnosis System
By using the control unit's self-diagnosis function and
a voltmeter, malfunctions of the system are easily de-
termined. When diagnosing malfunctions, follow the
steps bellow.
1. Connect a voltmeter to A (LW) terminal of the serv-
ice connector in engine room.
2. Read out the output patterns (See page 15—96)
in following condition.
76G15X-079
15—94

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