Summit L4-1468cc 1.5L SOHC (1989)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
1.
Disconnect ISC servo connector.
2.
Using a suitable ohmmeter, check continuity between terminals 1 and 4 of ISC motor coil on 1988 models. On 1989 models check continuity
between terminals 1 and 2.
3.
Resistance should be 5-35 ohms at 68°F.
4.
Apply 6 volts DC or less between terminals 1 and 4 on 1988 models, terminals 1 and 2 on 1989 models, of ISC motor connector, then check that
servo operates.
5.
If tests are not as specified, replace servo assembly.
