Restore Peak Performance to Your GM Vehicle
If your 2003-2005 Chevrolet Venture, or another compatible GM model, is suffering from frustrating issues like a persistent Check Engine Light, erratic engine behavior, or poor transmission shifting, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer of your vehicle, the PCM governs everything from fuel mixture and ignition timing to transmission shift points. When it falters, the symptoms can be widespread and difficult to diagnose. In my 20+ years of experience, I’ve seen countless vehicles with these exact issues, and a faulty PCM was the root cause in a majority of cases.
This replacement PCM, part number 89017735, is the definitive solution. We take the guesswork and hassle out of the repair by programming the module specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM factory software updates already installed, ready for a straightforward installation. You get a reliable fix that restores factory performance without the expensive trip to the dealership for programming.
Case Study: A Tricky Diagnosis
A customer brought in a 2004 Chevy Venture with an intermittent no-start condition and rough idling that no one could solve. The van would run fine for days, then suddenly refuse to start. We checked the fuel pump, ignition system, and sensors—all tested good. The only code was an occasional P0601 (Internal Control Module Memory Check Sum Error), which can sometimes be a fluke. After swapping in a known-good PCM, the problems vanished completely. The original module had an internal fault that only appeared under specific temperature conditions. This pre-programmed 2003-2005 Venture PCM would have been the perfect, direct-fit solution for that customer.
Is Your Vehicle Showing These Symptoms?
- âś” Persistent and illuminated Check Engine Light (CEL)
- âś” Stalling, hesitation, or rough idling
- âś” Harsh or erratic automatic transmission shifting
- âś” A noticeable drop in fuel economy
- âś” The engine will crank but fails to start
- âś” Failure to pass state emissions testing
- âś” Diagnostic Trouble Codes (DTCs) such as P0601, P0602, P0606, or U0100
A Straightforward Guide to Installation
- âś” Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electronic component replacement.
- âś” Locate the PCM: On most compatible vehicles like the Chevy Venture, the PCM is found in the left-hand (driver’s side) of the engine compartment, often attached to or near the air filter housing.
- âś” Disconnect the Old Module: Carefully unplug the electrical harness connectors from the old PCM. These connectors have locking tabs that need to be released before they can be pulled free.
- âś” Remove the Old Module: Unbolt the old PCM from its mounting bracket. Keep the hardware, as you may need to reuse it.
- âś” Install the New PCM: Mount your new, pre-programmed PCM onto the bracket and securely re-fasten the bolts.
- âś” Reconnect Everything: Plug the electrical connectors firmly into the new module until they click into place. Reconnect the negative battery terminal.
- âś” Perform Security Relearn (If Needed): In many cases, the vehicle will start and run perfectly. However, some GM vehicles may require a simple security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times before starting the engine.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 12583827 and 12583826 and is guaranteed to fit the following vehicles. Please note that some models require a specific engine or ID match.
- Alero: 2003-2004 (3.4L)
- Aztek: 2003-2005
- Bonneville: 2004-2005 (3.8L)
- Century: 2003-2005
- Grand Am: 2003-2005 (3.4L)
- Grand Prix: 2003 (3.1L)
- Impala: 2003-2005 (Primarily 3.4L)
- LeSabre: 2004-2005
- Malibu: 2003
- Monte Carlo: 2003-2005 (Primarily 3.4L)
- Montana: 2003-2005
- Park Avenue: 2004-2005
- Rendezvous: 2003-2005
- Silhouette: 2003-2004
- Venture: 2003-2005
This 2003-2005 Venture PCM is your ticket to resolving complex electronic issues and restoring the smooth, reliable operation you depend on. Don’t let a faulty computer keep your vehicle off the road.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s 17-digit VIN during checkout, and we will flash the module with the latest GM software specific to your vehicle.
What is a security relearn procedure?
This is a simple process that syncs the new PCM with your vehicle’s anti-theft system. It’s often required on GM vehicles and can be done at home without any special tools in about 30 minutes. Instructions are readily available online or we can provide guidance.
Is this a plug-and-play part?
Yes, for over 95% of vehicles. Once you install the module and perform the security relearn (if necessary), the vehicle should start and run correctly. In very rare cases, a Crankshaft Variation Relearn may be needed, which requires a scan tool.
Will this fix my transmission problems?
If your transmission issues, like hard shifting or delayed engagement, are caused by faulty signals from the PCM, then yes, this module will correct them. The PCM is integral to controlling modern automatic transmissions.
How do I find my vehicle’s VIN?
Your VIN can be found on your vehicle’s registration, insurance card, or on a metal plate on the driver’s side of the dashboard, visible through the windshield.