2004 Chevrolet Malibu BaseFACTORY OEM SERVICE PROCEDURE

Installation Procedure

    Fig 1: Sliding PCM Into PCM Bracket
    GM1239103Courtesy of GENERAL MOTORS CORP.
  1. Slide the PCM into the PCM bracket on the front of the battery box.
  2. Push down on the PCM until the retaining tab snaps into place.
  3. Fig 2: Connecting PCM Harness Connectors
    GM1239105Courtesy of GENERAL MOTORS CORP.
  4. Connect the PCM harness connectors.
  5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.

    Tighten:Β  Tighten the battery terminal bolts to 17 N.m (13 lb ft).

  7. IMPORTANT: Following the PCM reprogramming, the PCM will have to learn the crankshaft position variation for misfire diagnostics.
  8. Perform the crankshaft relearn procedure. Refer to DTC P0315 .
  9. Verify no DTCs exist.
  10. Reset the clock and preset radio stations.
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.