Chrysler Conquest 1988 Service Manual page 649

AUTOMATIC SPEED CONTROL (ASC) SYSTEM
- Troubleshooting
14-121
Check method Judgement
Step Probable cause Remedy
Condition Check item Normal Faulty
1 Disconnect Generation of Generated Not generated Faulty vacuum
Replace vacuum
terminal Bat vacuum switch
switch
section B
Apply vacuum
to switch side
using a hand
vacuum pump
2 Choke automatic Generation of Generated Not generated Check valve
Replace check
air conditioner positive pressure faulty, terminal
valve
side of terminal A
A, B faulty, Replace terminal
Connect section vacuum pipe
A. B
B of terminal B (check mixer) Replace vacuum
Disconnect faulty
pipe valve to
section A
injection
Apply positive
pressure to section
A on pipe side
using a hand
vacuum pump
3 Disconnect Generation of Generated Not generated Vacuum pump
Replace vacuum
section C of vacuum
faulty, terminal
pump
actuator C faulty, vacuum Replace terminal
Apply vacuum to pipe (vacuum C
pipe side of pump to check
Replace vacuum
section C using valve and terminal pipe
a hand vacuum
C to actuator) faulty
pump
NOTE
1. Check that connectors and vacuum hose are free of detrimental cracks or collapse.
2. If all above check results are normal, check the actuator. (Refer to P.14-130.)