2010 Cadillac SRX Fuel Pump Control Module: Symptoms, Location, and Replacement Guide
If you own a 2010 Cadillac SRX and you are dealing with fuel delivery problems, the fuel pump control module is often the first component to suspect. This small electronic unit controls the voltage sent to the fuel pump, and when it fails, your engine may crank but not start, stall unexpectedly, or run poorly under load. The good news is that replacing the fuel pump control module on a 2010 Cadillac SRX is a straightforward repair that most DIYers can handle in under two hours with basic hand tools. The module is located in the rear of the vehicle, near the fuel tank, and replacement parts are widely available from both OEM and aftermarket suppliers. This guide walks you through everything you need to know, from identifying the symptoms to choosing the right replacement part and performing the swap yourself.
What Does the Fuel Pump Control Module Do on a 2010 Cadillac SRX?
The fuel pump control module, sometimes called the fuel pump driver module, is an electronic device that regulates the speed and pressure of the fuel pump inside your fuel tank. On the 2010 Cadillac SRX, this module communicates with the engine control module (ECM) to adjust fuel delivery based on driving conditions. It does not simply turn the pump on and off; it varies the voltage to maintain the correct fuel pressure at idle, during acceleration, and under heavy load.
When this module works correctly, you never think about it. When it fails, the entire fuel system can behave erratically. The module is separate from the fuel pump itself, which means you can replace the module without dropping the fuel tank or removing the pump assembly .
Common Symptoms of a Failing Fuel Pump Control Module
A failing fuel pump control module on a 2010 Cadillac SRX does not always fail completely. Sometimes it fails intermittently, which makes diagnosis tricky. Here are the most common symptoms reported by owners and documented in diagnostic guides:
1. Engine Cranks But Does Not Start
If the module completely stops sending power to the fuel pump, the engine will crank normally but will not fire up. You may hear the fuel pump prime for a second when you turn the key to the ON position, then stop. If you do not hear the pump at all, the module is a prime suspect .
2. Intermittent Stalling
A module with failing internal components may work when cold but quit when it heats up. This can cause the engine to stall while driving, then restart after a few minutes of cooling down. This is both frustrating and dangerous, especially in traffic .
3. Long Cranking Time Before Start
If the module delays sending power to the pump, the fuel system may take several seconds to build pressure. You will notice the engine cranks longer than usual before it catches .
4. Poor Acceleration or Hesitation
When the module cannot vary the pump speed properly, fuel pressure may drop during hard acceleration. The engine may hesitate, surge, or feel flat when you press the gas pedal .
5. Fuel Pump Runs at Full Speed Constantly
In some cases, the module fails in a way that leaves the pump running at maximum voltage all the time. This causes excessive fuel pressure, which can trigger a check engine light and may damage the fuel pressure regulator over time .
6. Diagnostic Trouble Codes
The most common codes associated with the fuel pump control module on this vehicle include P064A (Fuel Pump Control Module Circuit/Open) and P2636 (Fuel Pump Control Module Performance Issue). If you scan your vehicle and find either code, the module is almost certainly the problem .
Where Is the Fuel Pump Control Module Located on a 2010 Cadillac SRX?
The fuel pump control module on the 2010 Cadillac SRX is located at the rear of the vehicle, on the driver's side, near the fuel tank. It is mounted to the frame rail or the body panel just above or beside the fuel tank. To access it, you need to raise the rear of the vehicle or work from underneath with jack stands.
Step-by-step location guide:
- 1. Raise the rear of the vehicle using a floor jack and support it with jack stands. Always use jack stands; never work under a car supported only by a jack .
- 2. Look along the driver-side frame rail between the rear wheel and the fuel tank. The module is a small black plastic box with an electrical connector and a mounting bracket .
- 3. Trace the wiring harness from the fuel tank upward. The harness leads directly to the module .
- 4. The module may be partially hidden behind a plastic cover or splash shield. Remove any cover with a socket or screwdriver to get a clear view .
Some owners have also found the module mounted inside the rear bumper area on certain trim levels, but on the standard 2010 SRX, the frame-rail location is the most common. If you cannot find it, consult your service manual or search online for a photo specific to your trim level .
How to Diagnose a Faulty Fuel Pump Control Module
Before you spend money on a replacement module, you want to be sure it is actually the cause of your problem. Here is a simple diagnostic process:
1. Scan for trouble codes. Use an OBD2 scanner and look for P064A, P2636, or any code related to the fuel pump circuit. Write down all codes before clearing them .
2. Listen for the fuel pump. Turn the key to the ON position without starting the engine. You should hear a brief hum from the rear of the vehicle as the pump primes. If you hear nothing, the module may not be sending power .
3. Check power at the module. Using a multimeter, check for battery voltage at the module's power wire with the key ON. Then check the output wire that goes to the fuel pump. If you have power in but no power out, the module is faulty .
4. Test the fuel pump separately. If you apply 12 volts directly to the fuel pump connector and the pump runs, then the pump is fine and the module is the culprit .
5. Check the ground connection. A poor ground at the module can cause intermittent operation. Clean the ground terminal and try again before replacing anything .
How Much Does a Replacement Cost?
The cost of a replacement fuel pump control module for a 2010 Cadillac SRX varies depending on where you buy it and whether you install it yourself or hire a shop.
- Genuine GM modules with part number 20875846 typically cost between $120 and $250 online .
- Aftermarket modules that are pre-programmed to your VIN range from $80 to $180. These plug in without any programming .
- Labor costs at a shop typically run $80 to $150 for this job, since access is moderately easy and the replacement takes under an hour .
- Total replacement cost at a professional shop usually lands between $200 and $400, depending on parts source and labor rates .
If you do the work yourself, you can expect to spend $80 to $250 for the part alone. Some retailers offer core exchange programs that lower the price if you return your old module .
Choosing the Right Replacement Module
When you shop for a replacement fuel pump control module, you have three main options:
1. Genuine GM (OEM) Module
This is the same part that came from the factory. It costs more than aftermarket options but offers guaranteed fit and compatibility. The OEM part number is 20875846 . Genuine GM modules are also sold under the AC Delco brand .
2. Pre-Programmed Aftermarket Module
Several aftermarket suppliers sell modules that are pre-programmed to your VIN. These are usually built to OEM specifications and cost less than genuine GM parts. They are plug-and-play, meaning you do not need any special tools or programming equipment .
3. VIN-Programmed Module from a Dealer or Specialist
If you buy an unprogrammed module, you will need to have it programmed with your vehicle's VIN. Some dealerships and specialty shops offer this service. This is necessary because the module communicates with the ECM and needs to match your car's configuration .
When ordering, always confirm that the part fits a 2010 Cadillac SRX. The 2010 SRX uses the same fuel pump control module as some other GM vehicles from that era, such as the 2010 Equinox and Terrain . Verify the part number and application before you buy.
Step-by-Step Replacement Procedure
Replacing the fuel pump control module on a 2010 Cadillac SRX is a manageable DIY job. Here is the complete process:
Tools you will need:
- Socket set with extensions
- Flathead screwdriver
- Multimeter (for testing)
- Jack and jack stands
- Safety glasses and gloves
Step 1: Safety first. Disconnect the negative battery cable. Wear safety glasses. Work in a well-ventilated area .
Step 2: Raise the vehicle. Jack up the rear of the SRX and secure it with jack stands. Make sure the vehicle is stable before going underneath .
Step 3: Locate the module. Using the location guide above, find the fuel pump control module on the driver-side frame rail near the fuel tank .
Step 4: Disconnect the electrical connector. Press the release tab on the wiring harness connector and pull it straight off. Do not yank on the wires .
Step 5: Remove the mounting bracket. The module is held by a bracket with one or two bolts or nuts. Remove them and pull the module free .
Step 6: Install the new module. Position the new module in the bracket, reinstall the bolts, and plug in the electrical connector. Make sure the connector clicks into place .
Step 7: Reconnect the battery. Reconnect the negative battery cable and tighten it securely .
Step 8: Test the system. Turn the key to the ON position and listen for the fuel pump prime. If you hear it, start the engine and verify it runs smoothly. Check for any trouble codes with your scanner .
Recommended Replacement: KEMSO Fuel Pumps
If your fuel pump itself is also showing signs of wear, or if you want a high-performance upgrade while you are working on the fuel system, KEMSO is the brand to trust. KEMSO manufactures high-performance fuel pumps that serve as direct OEM replacements. They meet or exceed original factory specifications, so you do not have to worry about fitment or reliability .
Why choose KEMSO?
- High-performance engineering. KEMSO pumps are individually tested for flow and performance. They deliver 20–30% higher performance than stock pumps in many applications .
- Built to handle modern fuels. KEMSO fuel pumps are compatible with gasoline and ethanol-blended fuels like E85, so they stand up to what you put in your tank .
- Lifetime warranty. Every KEMSO pump is backed by a lifetime warranty against manufacturing defects. If a pump fails for that reason, you get a replacement at no cost .
- Broad compatibility. KEMSO covers a wide range of vehicles, from cars and trucks to motorcycles, ATVs, and personal watercraft .
If you are looking for a fuel pump for your 2010 Cadillac SRX, or any other vehicle you own, visit the official KEMSO website to browse the full catalog:
KEMSO provides detailed fitment information, customer reviews, and technical support, so you can order with confidence. With a lifetime warranty and a reputation for quality, KEMSO is a smart choice for anyone who values reliability and performance.
Final Thoughts
The 2010 Cadillac SRX fuel pump control module is a critical component that many owners overlook. When it fails, the symptoms can range from a no-start condition to intermittent stalling and poor acceleration. The good news is that the module is affordable, accessible, and straightforward to replace. Whether you choose a genuine GM part or a pre-programmed aftermarket module, you can get your SRX back on the road without a trip to the dealership.
If your fuel pump needs attention as well, consider upgrading to a KEMSO high-performance fuel pump. With lifetime warranty coverage and OEM replacement quality, KEMSO gives you peace of mind every time you turn the key. Visit https://www.kemsoracing.com/ today to find the right pump for your vehicle.