Cruise Control Unit - Mazda MX-5 1990 Workshop Manual

CRUISE CONTROL SYSTEM
T
9MUOTX·268
CRUISE CONTROL UNIT
Removal
1 . Remove the passenger side kick panel.
2. Remove the nut and the control unit.
Installation
Install in the reverse order of removal.
Inspection
1, Check the terminal voltages of the control unit.
2. If the terminal voltages are correct, replace the control unit.
(B) (G/R)(R/W)(R/L)(BR/W) (Y)(Y/B) (G/B)
05UOTX·333
Terminal Wire color Connected to Test condition Specification
Action
(G/Y)
Actuator
Main switch OFF
OV
a
Main switch ON 9V
b
(G/B) Actuator
Main switch OFF OV
Check actuator
Main switch ON 9V (Refer to page T -104)
(G/O)
Actuator
Main switch OFF
OV
c
Main switch ON
9V
(R) Main switch
Main switch OFF
12V
e
Main switch ON
OV
Check main switch
f (Y/B) Main switch
Main switch OFF
OV (Refer to page T
-107)
Main switch ON
12V
h (Y) Brake switch
Brake pedal depressed
OV
Check brake switch
Brake pedal released 9V
(Refer to page T -1 07)
j
(BR/W) Clutch switch
Clutch pedal depressed
OV
Check clutch switch
Clutch pedal released
12V
(Refer to page T -1 06)
Cruise control switch
Main switch ON
12V
I (R/L)
(Set switch and
While pushing set switch
Check cruise control switch
Coast switch)
Main switch ON
OV
(Refer to page T
-107)
(G)
Stoplight switch
Brake pedal depressed 12V
Check stoplight switch
m
Brake pedal released
OV
(Refer to page T -61 )
Cruise control switch
Main switch ON
12V
(R/W)
(Resume switch and
While pushing resume switch
Check cruise control switch
n
oV
(Refer to page T -1 07)
Accel switch)
Main switch ON
(P) Actuator
Main switch OFF
OV
Check actuator
0
Main switch ON
9V
(Refer to page T -1 04)
P
(G/R) Speed sensor While rotating rear tires
Cycles Check speed sensor
0-5V
(Refer to page T -107)
s (WIG) Battery Constant
12V
Repair wire
05UOTX-228
T-105