1993 Pontiac Firebird Formula, AutomaticFACTORY OEM SERVICE PROCEDURE

Control Units

CONTROL UNITS LOCATION

Component Location
ABS Module Behind left side of dash, near kick panel.
Audio Alarm Module In convenience center.
Cruise Control Module In engine compartment, on left frame rail, forward of wheelwell.
Daytime Running Lights (DRL) Module Behind center of dash, above A/C-heater duct.
Diagnostic Energy Reserve Module (DERM) Behind dash, near glove box.
Electronic Ignition Module (3.4L) At front end of left cylinder head.
Engine Control Module (ECM)
3.4L (VIN S) In right rear corner of engine compartment. See Figure .
5.7L (VIN P) In right rear corner of engine compartment. See Figure .
Express Window Down Module On center of dash mat, above floor tunnel.
Headlight Doors Module (Firebird) In engine compartment, forward of left wheelwell.
Ignition Coil Module (5.7L) At front end of left cylinder head. See Figure .
Keyless Entry Receiver (Firebird) Behind right kick panel.
PASS-Key Decoder Module Behind dash, to left of glove box.
Power Seat Control Module (Firebird) Under driver's seat.
Retained Accessory Power (RAP) Module On center of dash mat, above floor tunnel.
Wiper Motor Module Mounted on wiper motor assembly.
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.