2011-2012 Fisker Karma Side Impact Sensor: Solving the Airbag Light
A guide to diagnosing the airbag warning light, understanding the side impact sensors, and safely purchasing a used replacement set for your 2011-2012 Fisker Karma.
- The primary symptom of a bad side impact sensor is a constant airbag warning light, which means the entire airbag system is disabled.
- This part (OEM# C131190102000) is sold as a matched left and right set; it is recommended to purchase and install them together.
- When buying a used sensor, it is critical to verify it did not come from a vehicle involved in a collision or one with flood damage.
- After replacement, the fault codes must be cleared from the SRS control module with a capable scan tool to turn off the warning light.
Symptoms of a Failing Side Impact Sensor
The signs of a faulty side impact sensor are impossible to ignore, as they directly impact the vehicle's primary safety system.
- Airbag Warning Light: The most common and immediate symptom is a continuously illuminated red or yellow airbag warning light on the instrument cluster. When this light is on, the entire SRS system—including all airbags and seatbelt pretensioners—is disabled as a safety precaution.
- Stored Fault Codes: A diagnostic scan will reveal specific Diagnostic Trouble Codes (DTCs) stored in the airbag control module. Codes may point to a faulty driver or passenger side impact sensor, or a communication error with the sensor. Common generic codes include B0050 (communication error) or 01221/01222 (side airbag impact sensor fault).
Warning: Do not ignore the airbag warning light. If the light is on, the airbags will not deploy in an accident, significantly increasing the risk of serious injury.
Known Issues, Recalls, and TSBs for the 2011-2012 Fisker Karma
While there are no specific recalls or Technical Service Bulletins (TSBs) for the side impact sensors on the Fisker Karma, the vehicle was subject to several important airbag-related recalls that owners should be aware of.
Takata Airbag Inflator Recalls (NHTSA Recalls 17V-004, 19V-181)
Like millions of other vehicles, the 2012 Fisker Karma was included in the massive Takata airbag recall. This recall was for the passenger-side front airbag inflator, not the impact sensors. The inflator could degrade over time, especially with exposure to heat and humidity, and rupture during deployment, sending metal fragments into the cabin. Karma Automotive, the successor to Fisker, managed the recall as a goodwill gesture, providing free replacements. While this doesn't directly relate to a faulty sensor, it's crucial to ensure this recall work has been performed on any Fisker Karma you own or are considering buying.
Pro Tip: The Fisker Karma was a low-production, technologically complex vehicle that had several recalls early in its life for issues ranging from battery cooling fans to the main high-voltage battery. Electrical issues can sometimes cause confusing symptoms across different systems, so a thorough diagnostic scan is essential.
Buying a Used Air Bag Impact Sensor: What to Check
Given the rarity of the Fisker Karma and the high cost or unavailability of new parts, a used OEM sensor is often the only practical option. Safety components require extra scrutiny.
- Verify the Part Number: The known OEM part number for the side impact sensor set is C131190102000. You must match this number exactly. Do not attempt to use a sensor from another make or model.
- Buy as a Set: These sensors are sold as a matched left and right pair under a single part number. It is highly recommended to purchase and install them as the set they came in.
- Inspect for Physical Damage: Carefully examine the sensor's plastic housing for any cracks, stress marks, or signs of being crushed. Check the electrical connector pins to ensure they are straight, clean, and free of corrosion.
- Check the Vehicle History: This is the most important step. NEVER purchase an airbag sensor from a vehicle that was in a collision where airbags deployed, or from a vehicle with a salvage title due to flood or fire damage. Water damage is a primary cause of sensor failure due to corrosion. Ask the seller for the VIN of the donor car to run a vehicle history report.
- Why Used OEM is a Good Choice: For a safety-critical part like an impact sensor, a used OEM component from a clean, accident-free vehicle is superior to a new, unbranded aftermarket part. The OEM sensor was designed and tested specifically for the Karma's chassis and SRS module, ensuring correct timing and operation.
Cost of Replacement
Pricing for the specific Fisker Karma sensor (C131190102000) is not widely available due to the car's rarity. The following table provides general market estimates for similar parts to help you understand the potential costs.
| Part Type | Estimated Cost |
|---|---|
| New OEM (If available) | $250 - $500+ |
| New Aftermarket | $40 - $400 |
| Used OEM | $50 - $150 |
| Shop Labor | $100 - $250 |
Replacement Overview & Difficulty
Replacing a side impact sensor is a moderately difficult job that a skilled DIY mechanic can perform.
- Difficulty: 3 out of 5
- Estimated Time: 1-2 hours
- Location: Side impact sensors are typically installed in one of two places: low on the B-pillar (the pillar between the front and rear doors) or under the carpet on the floor, near the crossmember beneath the front seats. You will likely need to remove the plastic sill plates and potentially the B-pillar trim or peel back the carpet to gain access. The sensors are often identifiable by their bright yellow electrical connectors, which are standard for all SRS components.
- Post-Installation Reset: After replacing the sensor, the fault code stored in the SRS module must be cleared using a compatible OBD2 scan tool with SRS capabilities. The airbag light will not turn off on its own, even if the faulty part is replaced.
Warning: Before beginning any work on the airbag system, you MUST disconnect the vehicle's 12V battery and wait at least 15 minutes. This allows the backup power supply in the SRS module to fully discharge, preventing accidental airbag deployment.
Frequently Asked Questions (FAQ)
Can I drive my Fisker Karma with the airbag light on?
No. While the car will physically drive, the airbag system is disabled when the warning light is on. In the event of a crash, the airbags will not deploy, putting you and your passengers at serious risk. The vehicle should be repaired as soon as possible.
Are the left and right side impact sensors interchangeable?
Generally, no. Side impact sensors are often specific to the side of the vehicle they are mounted on. Since the Fisker Karma part C131190102000 is sold as a left/right set, you should install them on their corresponding sides.
Can I just reset the airbag light without replacing the sensor?
No. The airbag light indicates a hard fault in the system. Even if you clear the code with a scan tool, the SRS module will immediately detect the faulty sensor upon the next self-test and the light will come right back on. The underlying problem must be fixed.
Does a used airbag sensor need to be programmed?
No, impact sensors themselves typically do not require VIN programming. They are simple input devices. However, the main airbag control module is VIN-specific. As long as you are only replacing the sensor, no programming is needed, but the fault codes must be cleared from the original module after installation.
Technical Specifications
OEM Part Numbers: C131190102000
Set of two (Left and Right) side crash impact sensors.
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.
- Fisker Karma:
- 🛍️ Shop This Part
- Symptoms of a Failing Side Impact Sensor
- Known Issues, Recalls, and TSBs for the 2011-2012 Fisker Karma
- Takata Airbag Inflator Recalls (NHTSA Recalls 17V-004, 19V-181)
- Buying a Used Air Bag Impact Sensor: What to Check
- Cost of Replacement
- Replacement Overview & Difficulty
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off