2003 Mitsubishi Eclipse RS, StandardFACTORY OEM SERVICE PROCEDURE

Computerized Engine Controls: ECM/Pcm: Notes

NOTE: For Engine Control Module (ECM) or Powertrain Control Module (PCM) location, see ECM/PCMΒ  table. To identify ECM/PCM power and ground terminals, see appropriate pin voltage chart in PIN VOLTAGE CHARTS article. To identify ECM/PCM power and ground circuits, see ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
ECM/PCM LOCATION

Application Location
Diamante (Fig 1) Behind Center Console
Eclipse & Eclipse Spyder (Fig 2) Behind Glove Box
Galant (Fig 3) Behind Glove Box
Lancer & Lancer Evolution VIII (Fig 4 & Fig 5 ) Behind Glove Box
Montero & Montero Sport (Fig 6 & Fig 7 ) Behind Right Side Kick Panel
Outlander (Fig 8) Behind Glove Box
Fig 1: Powertrain Control Module Location (Diamante)
G00229870Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Factory Service Tools

Use the Manual With the Right Hardware

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

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.