Restore Peak Performance to Your Cadillac SRX
Is your 2008 Cadillac SRX running rough, stalling unexpectedly, or showing a persistent Check Engine Light? These are classic signs of a failing Engine Control Module (ECM), the central computer of your vehicle. A faulty ECM can cripple your vehicle’s performance, fuel economy, and reliability. This replacement Engine Control Module, part number 19210737, is the definitive solution to get your luxury SUV running like new again. We take the guesswork and dealer expense out of the equation by programming the module specifically for your vehicle using your VIN before it ships.
A Technician’s Notebook: The Intermittent No-Start Mystery
I once had a 2008 SRX with the 4.6L V8 in my bay that was driving its owner crazy. It would start perfectly for a week, then refuse to start for an hour, with no rhyme or reason. No codes were stored initially. The owner had already replaced the battery and starter. After extensive testing, we found that the 5-volt reference signal from the ECM to the crank sensor would intermittently drop out. It wasn’t the sensor or the wiring—it was the ECM itself failing internally under specific thermal conditions. Replacing the ECM with a properly programmed unit solved the problem for good. It’s a textbook example of how a failing 2008 SRX Engine Control Module can create baffling issues.
Is Your Cadillac SRX Showing These Signs?
A failing ECM can manifest in various ways. If you’re experiencing any of the following, it’s highly likely your engine computer is the culprit. Don’t ignore these warnings, as they can lead to more significant engine damage or leave you stranded.
- âś” Persistent Check Engine Light (CEL) that won’t clear.
- âś” Diagnostic Trouble Codes (DTCs) like P0601, P0606, or U0100.
- âś” Engine stalling, stumbling, or hesitating during acceleration.
- âś” Complete no-start or intermittent starting problems.
- âś” Noticeable decrease in fuel efficiency.
- âś” Poor or erratic automatic transmission shifting.
- âś” Communication failures with your scan tool.
Your Straightforward Installation Guide
Installing your new 2008 SRX Engine Control Module is a manageable job for a confident DIYer. Our pre-programming service handles the most complex part, but a final security relearn is typically required on-vehicle, which doesn’t require any special tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all modules to power down completely.
- Locate the ECM: On the 2008 SRX with the 4.6L engine, the ECM is located in the engine compartment on the left-hand (driver’s) side.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be released. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, programmed ECM into place. Reconnect the electrical connectors, ensuring they click securely into position.
- Reconnect Battery: Reattach the negative battery terminal and tighten it securely.
- Perform Security Relearn: Turn the key to the ‘ON’ position (without starting the engine). Attempt to start the engine; it will likely crank but not start. Leave the key in the ‘ON’ position for 10-12 minutes, or until the security light on the dash stops flashing and turns off. Turn the key off for 10 seconds. Repeat this cycle two more times for a total of three cycles. The vehicle should now start and run.
Verified Vehicle Compatibility
This module is a direct replacement for service number 19210737 and is interchangeable with 12590032, 12602044, 12603530, 12605843, 12607096, and 12630457. While this listing is for a 2008 SRX Engine Control Module, the hardware fits a wide array of GM vehicles. We program it specifically for your vehicle’s VIN. Please confirm your vehicle is on this list:
ALLURE 08-09 5.3L
AURA 08-09 2.4L Hybrid, 3.6L
CANYON 08 (RH firewall)
COBALT 06 2.4L
COLORADO 08 (RH firewall)
CTS 06 V-Series, ID 12603530
DEVILLE 05 ID 12590032
DTS 06, 08
ENCLAVE 08 (behind fan shroud), ID 12607096/19210737
ENVOY 07-08 5.3L, 08-09 4.2L
G6 06-09 3.6L (various IDs)
GRAND PRIX 08 5.3L
HHR 06 2.4L
HUMMER H3 08 (RH firewall)
IMPALA 06 3.5L/3.9L, 08-09 5.3L
ION 06 2.4L
ISUZU ASCENDER 08 4.2L
ISUZU I-290/I-370 08 (RH firewall)
LACROSSE 08-09 5.3L
LUCERNE 06, 08 4.6L
MALIBU 06 3.9L, 08-10 2.4L Hybrid, 08-09 3.6L
MONTE CARLO 06 3.5L/3.9L
MONTANA 06 3.9L, 08-09
OUTLOOK 08 (behind fan shroud)
PURSUIT 06 2.4L
RAINIER 07 5.3L
RELAY 06 3.9L
SAAB 9-7X 07 8-cyl, 08 5.3L/6.0L
SOLSTICE 06
SRX 08 4.6L
STS 06 4.4L, 08 4.4L/4.6L
TERRAZA 06 3.9L
TRAILBLAZER 07 5.3L/6.0L, 08-09 4.2L
UPLANDER 06, 08-09 3.9L
VUE 08-10 (various engines)
XLR 06 4.4L, 08-09
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Your Vehicle Identification Number (VIN) is essential. We use it to load the correct, vehicle-specific GM software and calibrations onto the module. This ensures perfect compatibility with your engine, transmission, and options, preventing a host of potential issues.
Is any other programming required after installation?
While we handle the main engine programming, you will need to perform a security relearn procedure (also known as a Passlock or anti-theft relearn) once the module is installed. This syncs the new ECM to your vehicle’s anti-theft system and can be done without special tools, as described in our installation guide.
Will this fix my failed emissions test?
In many cases, yes. A faulty ECM is a common reason for failed emissions tests, as it controls the air/fuel mixture, ignition timing, and emissions equipment. A properly functioning module with the latest GM software updates is critical for passing modern emissions inspections.
What if I have performance modifications on my vehicle?
This module is programmed with standard factory GM calibrations. It is designed for stock or lightly modified vehicles and is not intended for vehicles with significant performance alterations. It will restore the vehicle to its original factory operating parameters.
Is this a simple plug-and-play part?
It’s very close. Because we pre-program it to your VIN, it’s about as close to plug-and-play as you can get. You plug it in, perform the straightforward security relearn, and you’re ready to go. This process saves you a trip to the dealer and the associated programming fees.