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ISC Actuator

  1. Disconnect ISC actuator connector. Using an ohmmeter, ensure continuity exists between ISC actuator terminals No. 1 (Gray/Red wire) and No. 3 (Gray wire).
  2. Using four 1.5-volt batteries (6 volts) in series, connect batteries to ISC actuator terminals No. 1 and 3. DO NOT  connect batteries for more than one second.
  3. With positive side of batteries connected to ISC actuator terminal No. 3, ensure actuator extends. With positive side of batteries connected to ISC actuator terminal No. 1 (leads reversed), ensure actuator retracts. If any of ISC actuator tests fail, replace lower throttle body.
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