Ford 4L5Z-10043B13-AAA Air Bag Module

Later models feature a Supplemental Inflatable Restraint (SIR) System, commonly known as an airbag, designed to protect the driver and front seat passenger from serious injury during a head-on or frontal collision. This system includes an airbag module in the center of the steering wheel and the right side of the instrument panel, two crash sensors at the front of the vehicle, and a diagnostic monitor with a backup power supply in the passenger compartment. On 2010 and later models, optional side-impact airbags are located in the top of the front seat backs. The steering wheel-mounted airbag inflator module contains a housing with the airbag and inflator unit, which inflates the bag almost instantaneously upon receiving an electrical signal. The passenger airbag, if equipped, is larger and mounted above the glove compartment, supported by a steel reaction housing. The Restraint Control Module (RCM) monitors the airbag system, checking it each time the vehicle starts, with an indicator light signaling proper operation or faults. When servicing components near the SRS system, it is crucial to disable the system to prevent accidental deployment. Early models have three sensors, while later models have four, all of which send signals to the electronic diagnostic monitor to inflate the airbags during a collision. The electronic diagnostic monitor ensures the airbag system is operational and alerts the driver to any faults. Disabling the system involves specific steps for both 2005 and earlier models and 2006 and later models, including disconnecting the battery and removing the RCM fuse. Enabling the system requires reconnecting the battery and reinstalling the fuse, with a test to confirm proper functionality indicated by the warning light behavior.

Later models feature a Supplemental Inflatable Restraint (SIR) System, commonly known as an airbag, designed to protect the driver and front seat passenger from serious injury during a head-on or frontal collision. This system includes an airbag module in the steering wheel and instrument panel, two crash sensors at the front, and a diagnostic monitor with a backup power supply in the passenger compartment. On 2010 and later models, optional side-impact airbags are located in the top of the front seatbacks. The steering wheel-mounted airbag inflator module contains a cushion and inflater unit, which inflates the bag almost instantaneously upon receiving an electrical signal. The passenger airbag, larger than the steering wheel unit, is mounted above the glove compartment and also inflates using a similar mechanism. The Restraint Control Module (RCM) monitors the airbag system, performing checks each time the vehicle starts, with an indicator light signaling proper operation or faults. If the light remains on or fails to illuminate, it indicates a system issue requiring professional diagnosis. Caution is advised when servicing components near the SRS system, as electrical test equipment can inadvertently deploy airbags. Early models have three sensors, while later models have four, all of which send signals to the electronic diagnostic monitor to inflate the airbags during sufficient impacts. The monitor supplies power to the airbag system even if the battery is disconnected and checks the system at startup. Disabling the system before working near airbag components is crucial, with specific procedures for both 2005 and earlier models and 2006 and later models to ensure safety. A switch is available on models with a passenger airbag to disable it when transporting a rear-facing child safety seat. Testing the SRS system involves observing the airbag warning light for proper function, with any irregularities indicating the need for a dealership check.