What is a Lexus LX LX570 airbag control unit?
The airbag control unit for the Lexus LX LX570 is the central control unit of the occupant protection system (SRS). It continuously monitors vehicle sensors, detects accident situations, and controls the reliable deployment of all airbags and seatbelt pretensioners. This module stores important crash data and is essential for vehicle safety.
This module, also called the Airbag Control Module or SRS control unit, is relevant for Lexus LX570 models from approximately 2014 to 2021. It is often located under the center console or in the footwell.
As a "Computer assembly, airbag," it's a genuine Lexus part. Repairing the defective module can prevent expensive replacements for the airbag control unit.
Why is the Lexus LX LX570 airbag control unit defective?
A Lexus LX LX570 airbag control unit often fails because it stores crash data after an accident that requires a reset, or because of internal hardware and software errors. Power supply errors and communication problems in the vehicle network can also lead to failure of this important module.
Because the control unit continuously monitors the airbag system, a fault in the module itself can activate the airbag warning light. This signals that diagnosis and repair are necessary.
An internal EEPROM memory error or a self-test error are common causes of failure. Such problems often require specialized repair of the airbag control unit to restore full functionality.
Common error codes for Lexus LX LX570 airbag control unit repair
During Lexus LX LX570 airbag control module repair, specific error codes occur that indicate internal problems within the control module and do not affect sensors or airbags. These codes indicate hardware failures, communication problems, or power supply issues, allowing for a precise diagnosis of the failure.
- B1000 → Control unit communication error → Signals faults in the connection between the airbag control unit and the vehicle network.
- B1010 → Airbag control module power supply error → Indicates insufficient or faulty power supply to the module.
- B1100 → EEPROM memory error in the airbag control unit → Indicates an internal defect in the non-volatile memory of the control unit.
- B1440 → Airbag control unit internal errors → Reports general internal malfunctions of the hardware or software.
- B1420 → Airbag control unit self-test error → Means that the control unit could not successfully complete its internal self-test.
- B1234 → Airbag Control Module Diagnostic Error → A general error indicating problems with the module's diagnostic capability.
These B-codes are crucial for the workshop to pinpoint the exact failure of the airbag control unit. They help plan an effective repair instead of unnecessarily replacing other components.
What part numbers are available for the Lexus LX LX570 airbag control unit repair?
For Lexus LX LX570 airbag control module repair, OEM part numbers 89170-60290 and 89170-60B00 are 100% verified and compatible. The 89170-60290 is the original Lexus part, while the 89170-60B00 is an alternative, tested OEM module suitable for replacing or resetting the defective part.
Part number 89170-60290 is listed in official Lexus parts catalogs as the appropriate airbag control module for the Lexus LX570. It covers model years from approximately 2008 to 2021.
Part number 89170-60B00 is closely related and serves as a replacement. These OEM modules are critical to the safety and function of the airbag system, so their correct selection is important during Lexus LX LX570 airbag control unit repair.
Other numbers that refer to airbags themselves or sensors are irrelevant to the control unit and are not taken into account in an airbag control unit repair.