Hyundai Sonata 1991 Shop Manual page 173

AUTOMATIC SPEED CONTROL (CRUISE)
7. HIGH-SPEED LIMIT
The vehicle cannot be driven at a fixed speed which is at or higher than the high-speed limit (approximately 137
km/h (85 mph)).
Note that the vehicle speed memorized when the SET switch is pressed while the vehicle is traveling at the
high-speed limit or higher will be the high-speed limit speed.
8.
AUTOMATIC CANCELLATION
When, during fixed-speed driving, the signals described below are input, conductivity to the electromagnetic clutch
is interrupted, thus canceling the ASC system.
1) If the vehicle speed decreases to a speed which is approximately 18 km/h (11 mph) or more below the
memorized vehicle speed.
2)
If there is no input of the vehicle speed signal for a time (greater than 0.5 second).
3) If there is damaged or disconnected wiring of the input line (stop lamp switch load side) of the stop lamp switch.
4) If the cancel switches (stop lamp switch, clutch switch or inhibitor switch) and command switches SETswitch or
RESUME switch) are switched on at the same time.
NOTE
If the SET and RESUME switches are ON at the same time the cruise control will operate in the COAST
mode and the speed will decrease.
9. PIEZO ALARM
When, while the CRUISE switch is ON, SET switch or
RESUME switch ON signals are recieved, the alarm is acti-
vated for approximately 0.2 second.
NOTE
1) Power is supplied from the fuse No.8 (10AI to the
alarm.
2) This alarm is also used as the alarm for warning of
operation of passive seat belt system.
PIEZO ALARM B+
E1
E2
TO PASSIVE SEAT BELT
CONTROL UNIT
ECU
27Yl00
10. ACCELERATOR SWITCH (Vehicles with an automatic transaxle)
The accelerator switch is a switch that functions to detect the condition of the accelerator pedal, and is one of the
ELC 4 AIT sensor.
Because the accelerator pedal is not used during fixed-speed driving, the ground circuit (transistor Tn) of the
accelerator switch is switched OFF during this time only, so as not to adversely affect the function of the ELC 4 AlT.
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