1995 Geo Metro Base, 2D HatchbackFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS

Component Component Location
Audio Alarm Module Behind dash, right of steering column.
Daytime Running Lamps (DRL) Module Behind left side of dash.
Diode Module Behind center of dash, taped to harness.
Electronic Brake Control Module (EBCM) Behind left side of dash.
Engine Control Module (ECM) (1.0L VIN 6) Behind right side of dash. See Figure.
Engine Control Module (ECM) (1.3L VIN 9) Behind right side of dash. See Figure.
Power Door Lock Control Module Luggage compartment, under center of rear shelf.
Sensing & Diagnostic Module (SDM) Behind center console.
Transmission Control Module (TCM) Behind left side of dash, near steering column. See Figure.
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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