1989 Suzuki Swift GLX, AutomaticFACTORY OEM SERVICE PROCEDURE

Retrieving Codes

  1. Ensure battery has at minimum of 11 volts. Always use a digital type test meter. Never connect or disconnect ECM wire harness connector when ignition is in the "ON" position.
  2. When performing diagnostic procedures, DO NOT apply meter probes to ECM unless wire harness connector is attached. Checks are made from the rear side of the ECM wire harness connector.
  3. When performing terminal checks, ensure that negative probe is grounded to vehicle body. See Fig 1 . Proceed to TROUBLE CODE CHARTS to retrieve stored codes.
NOTE: On Swift models, code 41 (No Ignition Signal) will not store in ECM memory after key is turned off. If vehicle does not start, install fuse in diagnostic test terminal with ignition switch in the "ON" position after cranking engine for at least 3 seconds.
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:

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

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