2000 Suzuki Swift GL, AutomaticFACTORY OEM SERVICE PROCEDURE

Esteem 1.8L

  1. Ensure ignition is off. Disconnect IAC valve connector. Measure resistance between IAC valve terminals. Resistance should be 8.6-10.6 ohms. Measure continuity between IAC valve terminals and valve body. No continuity should be present. If measurements are to specification, go to next step. If measurements are not to specification, replace IAC valve.
  2. Reconnect IAC valve connector. Start engine and operate until it reaches normal operating temperature. Disconnect IAC valve connector and check idle RPM. Connect 12-volt battery negative terminal to IAC terminal No. 3. Connect 12-volt battery positive terminal to IAC terminal No. 2. See Fig 1. If idle speed increases, IAC valve is okay. If idle speed does not increase, replace IAC valve.
Fig 1: Testing IAC Valve
G00009123Courtesy of SUZUKI OF AMERICA CORP.
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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.