1997 Suzuki Esteem GL, AutomaticFACTORY OEM SERVICE PROCEDURE

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.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.