Hyundai Sonata 1991 Shop Manual page 177

AUTOMATIC SPEED CONTROL (CRUISE)
2) If a voltmeter is used
Connect a voltmeter between the ground terminal and
the terminal for ASC of the diagnosis check connector.
It is possible to discover which circuit is the cause of the
cancellation by verifying the indication shown by the volt-
meter with the display patterns shown on the next page.
2. When diagnosis code No. 11, 12, 15 or 16 is displayed, check
by referring to the troubleshooting symptom applicable to
that number.
NOTE
There are six diagnosis items, including the one for the nor-
mal condition. As examples of the normal condition, code
No. 16 is entered in the memory as cancel switch ON sig-
nal input if the system is canceled by depressing the brake
pedal. and code No.13 or No.14 is entered when there is
an automatic cancellation because the vehicle speed drops
when the vehicle is driven up a steep slope with the preset
speed setting left set, etc .. when however, there is a can-
cellation not intentionally made by the driver, the cause
might be damaged or disconnected stop lamp switch input
wiring, a malfunction of the stop lamp switch ON, etc.,
even though the same code No.16 is displayed.
DIAGNOSIS CONNECTOR (IN THE FUSE BOX)
DISPLAY SIGNAL PATTERN
(FOR
EXAMPLE CODE 23)
0.5 0.5 0.5
3
t
""If" "' "
2
frt-
Ie
3
~I
OFF
I
~
I
rmn I
'- / ' -
/'----y--/~'
/
v
v
v
I
Pause time
Unit digit
Pause time (Digit)
10 digit
Pause time
Dimension: Second
27-58