Chrysler Conquest 1988 Service Manual page 622

AUTOMATIC SPEED CONTROL (ASC) SYSTEM
- Outline
Code
No.
Diagnosis item
Actuator drive
circuit
Vehicle speed
signal circuit
malfunction
Low-speed limiter
circuit
Redundant brake
Control switch
malfunction
Self-diagnosis descriptions and displays
Display patterns
OFF
I I I
Continuous signal
(Example) Code No. 13
OFF
(OV)
I
Pause time: 3 seconds OFF 3
2
"Tens" rank signal:
1.5 second ON (called "IO")
Rank division: 2 seconds OFF ~~
"Units" rank signal:
0.5 second ON, 0.5 second OFF signal
(The number of ON periods is the number
of "unit" ranks.)
iNhen cancel
signal is input
(2) Input check function
Self-diagnosis description
[Display pattern (when~ECUnormafI
when vehicle speed is approximately
20 km/h (12 mph) or higher, and
before fixed-speed driving has been
set.]
The control valve or its driving
transistor, the release valve or its
driving transistor, or the brake switch
is damaged (open).
Vehicle speed signal is not input for
one second or longer.
When the vehicle speed decreases
to-40 km/h (25 mph) or lower.
When actual vehicle speed decreases
to approximately 20 km/h (12 mph)
ormore below the memorized vehicle
speed.
ahen the SET switch and the
RESUME switch are switched ON at
the same time.
A/hen the stop light switch, clutch
switch or inhibitor switch is
switched ON, or there is damaged
3r disconnected wiring of the stop
ight switch input wire.
When the ignition switch is ON, and with the SET switch
and the RESUME switch ON (simultaneously pressed), the
input check mode can be selected by switching ON the
MAIN switch, thus permitting checking of the input circuits
In the same way as for self-diagnosis.
NOTE
1. The input check mode can be canceled by switching the
MAIN switch OFF. 1
2. The ASC system does not function during the input
check mode.
,& All of the code numbers
in
the
table
below are ~
sequentrally displayed in order from the lowest number.