Saab 9-5 (2009-2011) HVAC Blower Motor Resistor Replacement Guide
If your Saab's fan only works on high or not at all, the blower motor resistor is the likely culprit.
- A fan that only works on the highest speed is the classic sign of a bad blower motor resistor.
- This is a DIY-friendly repair that most owners can complete in under an hour with basic tools.
- Consider replacing the blower motor at the same time as the resistor, as a failing motor can cause the new resistor to fail.
- The resistor is located in the passenger footwell area, accessible after removing under-dash panels or the glove box.
Symptoms of a Failing Blower Motor Resistor
A bad blower motor resistor in your Saab 9-5 will make itself known quickly. The symptoms are usually straightforward and directly impact your ability to use your heat and air conditioning.
- Fan Only Works on High Speed: This is the most common sign. The highest fan setting often bypasses the resistor entirely, so if it's the only speed that works, the resistor has almost certainly failed.
- No Air From Vents: If the resistor fails completely, it can prevent any power from reaching the blower motor, resulting in no airflow at any speed.
- Fan Speed is Erratic or Changes on its Own: The fan might switch between speeds randomly or not correspond to your control knob setting.
- Cannot Change Fan Speed: The fan might be stuck on one speed (other than high) and won't respond to any adjustments you make on the control panel.
Pro-Tip: Check the Blower Motor Too
A failing blower motor can draw too much electricity, causing the new resistor to burn out prematurely. If your old resistor looks burnt or melted, it's a good idea to test the blower motor itself before installing a new resistor. Replacing them as a pair can save you from doing the job twice.
Choosing the Right Aftermarket Blower Motor Resistor
For the 2009-2011 Saab 9-5, which is based on a GM platform, several reliable aftermarket brands are available. Since OEM parts can be expensive or hard to find, a quality aftermarket part is often the best choice.
The brands available in our inventory offer a good balance of quality and value:
- Standard Motor Products (SMP): Often considered a top-tier aftermarket brand, SMP parts are known for their quality and reliability, designed to meet or exceed original equipment specifications. An eBay listing shows an SMP resistor available for this vehicle.
- Four Seasons: A well-known name in automotive climate control systems. While some forum users have mixed opinions on the brand, they are a major supplier and generally offer a reliable product.
- Holstein: This brand offers parts that are often more affordable. While some users on forums express caution about using non-OEM parts for critical components, others have used Holstein sensors without issue. For a part like a blower motor resistor, it can be a cost-effective option.
Cost of Replacing Your Blower Motor Resistor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Resistor | $56.81 - $99.03 |
| Shop Labor | $50 - $150 |
| Total Estimated Cost (DIY) | $56.81 - $99.03 |
| Total Estimated Cost (Shop) | $107 - $250 |
Note: Costs are estimates and may vary based on your location and specific repair shop. The OEM part is often integrated with the blower motor assembly.
Frequently Asked Questions (FAQ)
Where is the blower motor resistor located on a 2009-2011 Saab 9-5?
The blower motor resistor is typically located in the passenger-side footwell, mounted on the HVAC housing or near the blower motor itself. This allows the end of the resistor to be cooled by the airflow from the fan. Access usually involves removing the glove box or an under-dash panel.
Can I replace the blower motor resistor myself?
Yes, this is a very DIY-friendly repair for most car owners. The job typically requires only basic hand tools like a screwdriver or a small socket set and can be completed in under an hour. The main challenge is often working in the tight space of the footwell.
Is a blower motor resistor the same as a blower motor?
No, they are two separate parts that work together. The blower motor is the fan that moves the air. The resistor is the electrical module that controls the motor's speed.
Why did my new aftermarket resistor fail so quickly?
The most common reason for a new resistor to fail is a problem with the blower motor itself. An old or failing blower motor can draw too much electrical current, which overheats and destroys the resistor. If you're replacing the resistor, it's wise to inspect and test the blower motor at the same time.
Are there any recalls for this issue?
No, there are no specific recalls for the HVAC blower motor resistor on the 2009-2011 Saab 9-5. While numerous Technical Service Bulletins (TSBs) exist for this model, none point to a widespread, recognized fault with the blower motor resistor that would be covered under a special service campaign.
Technical Specifications
OEM Part Numbers: 13250115 13221349
This part is specific to models with Automatic Climate Control (ACC). It is an electronic module, not a traditional wire-wound resistor. It typically has a multi-pin connector.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Saab 9-5: