1992 Geo Metro XFiFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Location
A/T Control Module (ATCM) Behind left side of dash, near steering column. See Figure .
Daytime Running Light (DRL) Controller Behind left side of dash.
Diagnostic Energy Reserve Module (DERM) Behind left side of dash, right of steering column. See Figure .
Diode Module Behind left side of dash, left of steering column. See Figure .
Electronic Control Module (ECM) At left side of dash, behind instrument cluster. See Figure .
Seat Belt Controller Behind left side of dash, left of steering column.
Audio Alarm Module Behind right side of dash, below radio.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.