Inspection Of Brake Switch; Inspection Of Clutch Switch; Inspection Of Cruise Control Switch - Mazda MX-5 1990 Workshop Manual

T
(cont'd)
Terminal Wire color
h (Y)
j (BR/W)
I
(R/L)
m (G)
n
(R/W)
0
(P)
p (G/R)
s (WIG)
CRUISE CONTROL SYSTEM
Connected to
Brake switch
Clutch switch
Cruise control switch
(Set switch and coast
switch)
Stoplight switch
Cruise control switch
(Resume switch and
accel switch)
Actuator
Speed sensor
Battery
b a
~
Test condition Specification Action
Brake pedal depressed
OV
Go to Step 4
Brake pedal released 9V
Clutch pedal depressed
OV
Go to Step
5
Clutch pedal released
12V
Main switch ON
12V
While pushing set switch
OV
Go to Step 6
after main switch ON
Brake pedal depressed 12V
Go to Step 7
Brake pedal released
OV
Main switch ON
12V
While pushing resume
OV
Go to Step 6
switch after main switch ON
Main switch OFF
OV
Go to Step 8
Main switch ON 9V
While rotating rear tires
Run out
Go to Step 9
between 0-5V
Constant
12V
Repair wire (WIG)
05UOTX-214
Step 4 - Inspection of brake switch
1. Disconnect the brake switch connector.
2. Check continuity between terminals of the switch.
Pedal position
Terminal
a
b
Pedal released 0 -0
Pedal depressed
~:
Indicates continuity
3. If not as specified, replace the brake switch.
4. If the switch is OK, repair the wire harness. (Fuse - Brake
switch - Control unit)
Ii
Step 5 - Inspection of clutch switch
05UOTX-215
1. Disconnect the clutch switch connector_
11
b
a
05UOTX-331
2. Check continuity between terminals of the switch.
Pedal position
Terminal
a b
Pedal released
Pedal depressed
0 -0
0----0:
Indicates continuity
3. If not as specified, replace the clutch switch.
4. If the switch is OK, repair the wire harness (Fuse - Clutch
switch - Control unit).
Step 6 - Inspection of cruise control switch
1. Remove the knee protector and disconnect the combina-
tion switch connector.
CRUISE CONTROL UNIT
2. Check continuity between terminals of the combination
switch connector.
SE
RE
E
05UOTX-216
T-100
Switch
Terminal
SE RE
E
SET/COAST
-0
RESUME/ACCEL
0
-0
0---0: Indicates continuity
3. If not as specified, replace the cruise control switch.
4. If the switch is OK, repair the wire harness. (Cruise control
switch - Control unit)