Restore Peak Performance to Your Saturn Relay
If you’re dealing with a frustrating check engine light, poor fuel economy, or unpredictable stalling in your 2006 Saturn Relay, a failing Engine Control Module (ECM) is a very likely culprit. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cause a cascade of issues that are often misdiagnosed. This isn’t just a part; it’s the brain of your vehicle’s engine, and when it falters, nothing runs correctly. This direct-replacement 2006 Saturn Relay ECM is the definitive solution to get your minivan running smoothly and reliably again.
We take the guesswork and extra cost out of the repair. Unlike a generic module from a parts store or a junkyard, this unit is professionally programmed to your vehicle’s specific VIN before it ships. We load it with the latest, most stable software updates from GM. This means no expensive trips to the dealership for programming—it’s ready for installation right out of the box.
Common Signs Your ECM is Failing
A failing engine computer can manifest in many ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ Unexplained Check Engine Light (CEL) activation, often with codes like P0601, P0602, or P0606.
- ✔ The engine cranks but refuses to start.
- ✔ Intermittent stalling or rough idling for no apparent reason.
- ✔ A noticeable drop in fuel mileage.
- ✔ Hesitation or stumbling during acceleration.
- ✔ Communication errors with diagnostic scan tools.
Case Study: The Intermittent Minivan Mystery
A customer brought in a 2006 Saturn Relay with a problem that was driving them crazy: it would stall randomly at stoplights, but only after it was fully warmed up. They had already replaced the spark plugs and an O2 sensor with no luck. After connecting my scanner, I noticed intermittent data loss from the ECM. On the test drive, I confirmed the computer would simply stop communicating for a split second, killing the engine. A new, properly programmed 2006 Saturn Relay ECM solved the problem permanently. It’s a classic example of how internal ECM failure can mimic other issues, costing you time and money on unneeded parts.
A Straightforward Guide to Installation
Installing your new ECM is a manageable job for a confident DIYer. While specific steps can vary slightly, here is a general guide for your 2006 Saturn Relay:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes for the system capacitors to discharge.
- Locate the ECM: On the Saturn Relay, the ECM is typically found in the engine compartment on the driver’s side (LH side).
- Disconnect the Old Module: Carefully release the locking tabs on the electrical connectors and pull them straight out. Avoid wiggling them side-to-side to prevent pin damage. Unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new ECM into place and securely reconnect the electrical harnesses. You should hear a distinct click as they lock.
- Reconnect the Battery: Reattach the negative battery terminal and tighten it securely.
- Perform Relearn Procedure: In many GM vehicles, a security or anti-theft relearn procedure is necessary. 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. Consult your owner’s manual for the specific procedure for your vehicle.
Verified Fitment For Your Vehicle
This ECM, part number 12602044, is a direct replacement for a wide range of GM vehicles. It is interchangeable with service numbers 12590032, 12603530, 12605843, 12607096, 12630457, and 19210737. Please verify your vehicle is on the list below to ensure compatibility.
ALLURE 08-09 Electronic Control Module; (lower air cleaner housing), 5.3L
COLORADO 08 Electronic Control Module; (RH firewall)
ENVOY 07-09 Electronic Control Module; multiple engines
G6 06-09 Electronic Control Module; multiple engines & IDs
MONTE CARLO 06 Electronic Control Module; 3.5L, 3.9L
XLR 06-09 Electronic Control Module
AURA 08-09 Electronic Control Module; 2.4L Hybrid, 3.6L
DTS 06, 08 Electronic Control Module
DEVILLE 05 Electronic Control Module; ID 12590032
IMPALA 06, 08-09 Electronic Control Module; 3.5L, 3.9L, 5.3L
LACROSSE 08-09 Electronic Control Module; 5.3L
STS 06, 08 Electronic Control Module; 4.4L, 4.6L
TRAILBLAZER 07-09 Electronic Control Module; multiple engines & IDs
UPLANDER 06, 08-09 Electronic Control Module; 3.9L
ISUZU ASCENDER 08 Electronic Control Module; 4.2L
SAAB 9-7X 07-08 Electronic Control Module; 8 cyl, 6.0L
ENCLAVE 08 Electronic Control Module
LUCERNE 06, 08 Electronic Control Module; 4.6L
RAINIER 07 Electronic Control Module; 5.3L
CTS 06 Electronic Control Module; V-Series
ION 06 Electronic Control Module; 2.4L
MALIBU 06, 08-10 Electronic Control Module; multiple engines
VUE 08-10 Electronic Control Module; multiple engines
OUTLOOK 08 Electronic Control Module
SOLSTICE 06 Electronic Control Module
ACADIA 07-08 Electronic Control Module
GRAND PRIX 08 Electronic Control Module; 5.3L
HHR 06 Electronic Control Module; 2.4L
ISUZU I-290 08 Electronic Control Module
MONTANA 06, 08-09 Electronic Control Module; 3.9L
CANYON 08 Electronic Control Module
COBALT 06 Electronic Control Module; 2.4L
ISUZU I-370 08 Electronic Control Module
SRX 08 Electronic Control Module; 4.6L
PURSUIT 06 Electronic Control Module; 2.4L
TERRAZA 06 Electronic Control Module; 3.9L
HUMMER H3 08 Electronic Control Module
…and other models as listed in the original data.
Frequently Asked Questions
Do I really need to provide my VIN?
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is critical. We use it to load the precise factory software and calibrations for your specific vehicle. This ensures perfect compatibility with your engine, transmission, and options, preventing a host of potential performance and communication issues.
Is any additional programming required after installation?
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is critical. We use it to load the precise factory software and calibrations for your specific vehicle. This ensures perfect compatibility with your engine, transmission, and options, preventing a host of potential performance and communication issues.
Why should I buy this instead of a cheaper one from a junkyard?
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is critical. We use it to load the precise factory software and calibrations for your specific vehicle. This ensures perfect compatibility with your engine, transmission, and options, preventing a host of potential performance and communication issues.
Will this fix my transmission shifting problems?
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is critical. We use it to load the precise factory software and calibrations for your specific vehicle. This ensures perfect compatibility with your engine, transmission, and options, preventing a host of potential performance and communication issues.