2006 Lexus IS250 & IS350 Air Bag Module: Understanding Part 89170-53080 and the Critical 06/06 Cutoff
This guide covers the diagnosis, replacement, and crucial programming requirements for the airbag control module in the 2006 Lexus IS250 and IS350.
- This module, part number 89170-53080, only fits 2006 IS250/IS350 models built through June 2006.
- An illuminated airbag light means the entire safety system is disabled and will not deploy in a crash.
- After an accident, the original module can be sent to a reset service, which is cheaper than replacement and avoids the need for dealer programming.
- Installing a used or new module from another car will require programming by a dealer or specialist to match your car's VIN.
Critical Compatibility Warning: For Vehicles Built Through June 2006
Warning: This specific Air Bag Control Module, OEM part number 89170-53080, is only correct for the 2006 Lexus IS250 and 2006 Lexus IS350 manufactured on or before June 2006 (06/06). Vehicles manufactured from July 2006 onward use a different part number. Before purchasing, you must verify your vehicle's production date, which can be found on the sticker inside the driver's door jamb.
Symptoms of a Failing Air Bag Module
The most common and immediate sign of a problem with the airbag control module is an illuminated airbag warning light on your instrument cluster. This light indicates that a fault has been detected in the SRS system, and as a result, the entire system is disabled. This means that in the event of an accident, your airbags and seatbelt pretensioners will not deploy.
- Persistent Airbag/SRS Warning Light: The light stays on continuously after the initial startup check.
- Failure to Communicate: A diagnostic scan tool may be unable to establish communication with the SRS module.
- Fault Codes Stored: An advanced scanner capable of reading SRS codes may find specific Diagnostic Trouble Codes (DTCs) pointing to the module itself. Common codes include B1000 (Airbag ECU Malfunction) or codes indicating "Crash Event Stored" or "Deployment Commanded".
It is important to have the vehicle scanned by a qualified technician to confirm the issue is with the module and not a less serious problem like a faulty sensor, clockspring, or wiring connection.
Airbag Recalls vs. A Faulty Control Module
Many 2006 Lexus IS250 and IS350 models were included in the widespread Takata airbag recalls. It is crucial to understand that these recalls were for the airbag inflators, which are components inside the airbag assemblies themselves, not the control module. Having the recall service performed by a dealer will replace the potentially dangerous inflator but will not fix a separate issue with the airbag control module. If your airbag light is on, you have a separate problem that needs to be diagnosed.
Buying a Used Air Bag Control Module
Purchasing a used OEM module is a common and cost-effective repair. However, there are critical rules to follow to ensure you get a functional, compatible part.
- Verify the Part Number: Ensure the module you are buying is part number 89170-53080.
- Confirm Production Date: The donor vehicle must be a 2006 IS250 or IS350 manufactured in or before June 2006.
- CRITICAL - Check Crash History: The most important rule is to buy a module from a vehicle that has not been in an accident and has not had its airbags deployed. When an airbag deploys, the module permanently stores "crash data" and locks itself. While this data can be cleared by specialty services, a module from a non-crashed car is always the safest bet.
- Physical Inspection: When you receive the part, inspect it for any signs of water damage, corrosion on the pins, or physical damage to the case or connectors. The module is located under the center console, making it vulnerable to liquid spills.
Programming, Resetting, and Replacement
This is the most important part of the repair process. You have two main paths when replacing the module: resetting your original unit or installing a different one (new or used).
Option 1: Resetting Your Original Module (Recommended if crashed)
If your vehicle was in an accident and the airbag light is on due to stored crash data, the best option is to remove your original module and send it to a specialized reset service. These services use specific tools to erase the hard crash codes, restoring the module to its original factory state.
Pro Tip: Re-installing your own reset module is plug-and-play. Because it is original to your car, it retains the correct VIN and configuration, so no further dealer programming is required. This is the simplest and often cheapest solution after a collision.
Option 2: Installing a New or Used Module
If your original module failed due to an internal fault (and not a crash), or if it is missing, you can install a new or used replacement. However, any module that is not original to the vehicle will likely need to be programmed to your car's Vehicle Identification Number (VIN). This procedure usually requires a dealer or a specialized shop with advanced tools like Toyota's Techstream software. Failure to program the module can result in a persistent airbag light and a non-functional system.
Replacement Procedure Overview
Replacing the airbag module is moderately difficult due to the need to disassemble the center console.
CRITICAL SAFETY WARNING: The airbag system contains explosive charges and capacitors that can hold a charge long after the car is off. To prevent accidental deployment and serious injury, you MUST disconnect the negative battery terminal and wait at least 15 minutes for the system to fully discharge before touching any SRS components.
- Disconnect the negative battery terminal and wait 15 minutes.
- Disassemble the center console trim, including the armrest and shifter surround, to gain access to the floor underneath.
- The airbag control module is a metal box, typically with a yellow wiring harness, bolted to the vehicle's floor tunnel.
- Carefully unbolt the module and disconnect the wiring connectors.
- Install the new or reset module, ensuring all bolts and connectors are secure.
- Reassemble the center console.
- Reconnect the battery.
- Turn the ignition on. The airbag light should illuminate for a few seconds and then turn off. If it stays on, the system may need to be scanned to clear any remaining soft codes or the module may require programming.
Cost Comparison
| Item | Estimated Cost |
|---|---|
| New OEM Module (Part Only) | $200 - $300 |
| Used OEM Module (Part Only) | $75 - $150 |
| Module Reset Service | $50 - $150 |
| Shop Labor for Replacement | $210 - $310 |
| Shop Labor for Programming (if needed) | $100 - $200 |
Frequently Asked Questions (FAQ)
Can I drive my 2006 IS250 or IS350 with the airbag light on?
No. While the car will drive normally, a solid airbag warning light means the entire Supplemental Restraint System (SRS) is disabled. In an accident, the airbags and seatbelt pretensioners will not deploy, significantly increasing the risk of serious injury or death. This should be repaired immediately.
Will a used airbag module from a 2007 Lexus IS250 work in my 2006 model?
No, not if your car was built before July 2006. Part number 89170-53080 is specific to vehicles built through June 2006. Later models use a different part number and are not interchangeable. Always match the part number and your vehicle's production date.
Can I reset the airbag light myself after replacing the module?
Sometimes. If you installed a properly reset original module or a correctly programmed replacement, and there are no other faults in the system, the light should go off on its own after a startup check. However, if any "soft codes" were stored during the repair, they may need to be cleared with an advanced OBD-II scanner that can access the SRS system. A basic code reader for check engine lights will not work.
Why do I need to reset the module after an accident if the airbags didn't even deploy?
Even in a minor collision, the crash sensors can send data to the module that gets permanently stored as a "crash event." The system does this for safety and liability reasons. Once this data is written, the module locks itself and turns on the warning light, requiring a professional reset service to clear the internal memory.
Technical Specifications
OEM Part Numbers: 89170-53080
Location: Under the center console, bolted to the floor tunnel. Connectors: Typically uses a bright yellow wiring harness to signify it is part of the SRS system.
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.
- Lexus IS350:
- Lexus IS250:
- 🛍️ Shop This Part
- Critical Compatibility Warning: For Vehicles Built Through June 2006
- Symptoms of a Failing Air Bag Module
- Airbag Recalls vs. A Faulty Control Module
- Buying a Used Air Bag Control Module
- Programming, Resetting, and Replacement
- Option 1: Resetting Your Original Module (Recommended if crashed)
- Option 2: Installing a New or Used Module
- Replacement Procedure Overview
- Cost Comparison
- Frequently Asked Questions (FAQ)
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