What is a Chrysler LHS 1st Gen airbag control module?
The Chrysler LHS 1st Gen Airbag Control Unit is the central safety unit in vehicles built between 1994 and 1997. It precisely monitors sensors, detects accidents, and reliably activates the driver and passenger airbags as well as other occupant protection systems. This module also stores important crash data and ensures the continuous operational readiness of the entire restraint system.
As a core component of the SRS (Supplemental Restraint System), it plays a crucial role in passive safety. It processes signals from impact sensors to ensure rapid deployment of the airbags if necessary.
The control unit is designed specifically for the first generation of the luxury Chrysler LHS sedan and is compatible with its 3.5L V6 engine.
Why is the Chrysler LHS 1st Gen airbag control module defective?
The Chrysler LHS 1st Gen airbag control module can fail due to internal electronic components failing after an accident or due to aging. After a collision, hard codes are stored, requiring repair and a reset, as these can lock up the system and indicate a malfunction.
Failure is often the result of crash events that result in the storage of indelible data. Malfunctions caused by internal component failures can also occur, often requiring comprehensive diagnostics.
A defective control unit causes the airbag warning light to stay permanently lit, rendering the system inoperable. A professional repair is then essential to restore safety.
Common error codes for Chrysler LHS 1st Gen Airbag Control Unit repair
During Chrysler LHS 1st Gen airbag control module repairs, specific OBD-II B codes may occur that directly indicate problems within the control module or its primary circuits. These error codes, such as B1000, B1B01, or B1B02, indicate communication problems or short circuits in the airbag firing circuits and require a targeted diagnosis of the module itself.
These codes are crucial for troubleshooting and indicate internal damage to the control unit.
- **B1000**: Control Unit Communication Error → Error in the internal communication of the airbag ECU → Often requires repair or reset of the module.
- **B1B01**: Driver Airbag Squib 1 Circuit High → Short circuit in the driver airbag squib circuit → Indicates a problem directly in the control unit output.
- **B1B02**: Driver Airbag Squib 1 Circuit Open → Open circuit in the driver airbag deployment circuit → Indicates an open wire or internal control unit defect.
Such error codes, especially after an accident, require specialized workshop diagnosis and repair.
What part numbers are available for the Chrysler LHS 1st Gen airbag control unit repair?
For Chrysler LHS 1st Gen airbag control unit repairs, the OEM part numbers 04649014 and 4649014 are primarily relevant. These original Mopar numbers are verified exclusively for this model and ensure full compatibility. There are no confirmed alternative or supplier part numbers for this specific module.
The number 04649014 is the official Mopar part number for this vehicle's airbag control unit. The alternative spelling 4649014 refers to the same original part.
It is crucial to use only these OEM part numbers to ensure full functionality and safety after repair. Other parts or numbers are not compatible or verified.
Technical specifications for Chrysler LHS 1st Gen Airbag Control Unit Repair
The technical specifications of the Chrysler LHS 1st Gen airbag control unit include compatibility with the 3.5L V6 engine and a 12V electrical system. It is a central module for monitoring and triggering the occupant protection systems, integrating signals from impact sensors and communicating with the vehicle via internal bus systems.
This module is specifically designed for Chrysler LHS models from 1994 to 1997. It enables precise error detection using OBD-I/OBD-II diagnostic tools, which is essential for comprehensive repairs.
The control unit's electronics are robustly constructed, but are susceptible to overvoltages or mechanical damage in the event of an accident.
Functionality and importance of Chrysler LHS 1st Gen Airbag Control Unit Repair
The Chrysler LHS 1st Gen airbag control module detects accidents by evaluating sensor data and deploys the driver and passenger airbags when necessary. The repair is critical because it restores continuous self-diagnosis and system monitoring, ensuring the operational readiness of all passive safety elements.
It features energy buffering to ensure triggering even in the event of a voltage drop after impact. Proper function is vital.
After a repair, the module often needs to be reprogrammed or reset to erase crash data and align it with the vehicle's VIN. This ensures the system functions flawlessly again and occupant safety is guaranteed in the event of another accident.
Chrysler LHS 1st Gen Airbag Control Unit Installation Location and Compatibility
The Chrysler LHS 1st Gen airbag control unit is typically securely bolted under the dashboard, near the steering column. It is compatible only with the first-generation Chrysler LHS (1994-1997) and is not suitable for later models or other Chrysler vehicles.
Installation requires connection to the 12V power supply, various sensors, and the airbag inflator outputs. Precise mounting with vibration-damping elements is essential.
The repair and correct installation of the Chrysler LHS 1st Gen airbag control unit is essential for safety. A specialized workshop should handle diagnosis and repair.