Sonata V6-3.0L (1991)
2)
If any measurement taken indicates an electrical short (close to zero ohms), the ISC Servo (stepper motor) will need to be replaced.
3)
The throttle body assembly should also be removed for replacement of Item B and inspection of items A & C.
4)
Throttle body components should be replaced if necessary, as indicated by the inspection.
5)
Following the repair, proper operation of the stepper motor should be verified by using the scanner as previously described.
6)
If the stepper motor is still inoperative following the throttle body repair, perform the following:
A) Verify harness continuity from the ISC connector to the ECM.
B) If no opens or shorts are found in the harness, use a functioning ECM and verify proper stepper motor operation.
