OEM Lincoln LS Air Bag Control Module

Lincoln LS Air Bag Control Module Parts and Q&A

• Control Module
  6W4Z-14B321-BA
  Q: What precautions should be taken when servicing the air bag control module and ensuring the proper operation of the restraints control module (RCM) on Lincoln LS?

  A:

  You must use safety glasses when servicing the air bag control module because it protects you from possible injuries related to accidental air bag expansion. The restraints control module (RCM) needs to be correctly oriented to ensure proper functioning of the air bag supplemental restraint system (SRS). The RCM must be replaced when the vehicle experiences center tunnel damage in a collision since the mounting and bracket need inspection for any sign of deformation. Since the RCM mounting needs to return to its factory set condition. After collisions check both the sensor mounting bracket and wiring pigtail for any signs of damage. Replace and correctly position all deficient SRS components. The use of memory saver devices should be avoided to minimize personal injury dangers. The modules in electronic systems demonstrate high sensitivity to electronically stored charges leading to equipment deterioration. Verify that the new RCM unit is appropriate before installation to stop it from generating Fault Codes (DTCs). The warning light illuminates when the RCM fuse is removed during an ON ignition state but this condition does not reflect an SRS system fault. A full operational check for SRS faults must be completed before returning any vehicle to the customer. The repair method requires using a new component but if the problem continues replacing the original part and completing diagnostic checks once more. The procedure starts by disabling the system and removing the console from the floor before disconnecting the cable that controls the shifter interlock but the shifter itself remains in place. Secure the shifter properly next to your work area by installing its bolts at 7 Nm (62 lb-in) torque when reattaching the part. Follow the removal of the lower A/C duct by removing both the lower bolts of the ash tray housing before securing them at 12 Nm (9 lb-ft) torque during installation. To disengage the large RCM electrical connector position assurance lever you must pinch the thumb tab to pivot it backwards before disconnecting the RCM electrical connector. Disconnect all RCM electric connectors after lifting the position assurance lever and remove the RCM bolts and housing by applying 12 Nm (9 lb-ft) torque. Seating of the large RCM electrical connector must avoid angular insertion to prevent faulty connection and ensure component safety when you apply a gentle force to guide it into proper seating before using the lever to settle it completely. The procedure ends with system repowering after completing the invertor and RCM installation steps.
• Control Module
  XW4Z-14B321-CA
  Q: What is the Importance of the Air Bag Control Module in the Supplemental Restraint System (SRS) and What Precautions Should Be Taken During Its Inspection and Installation on Lincoln LS?

  A:

  The Restraint Control Module (RCM) functions as the vital component for air bag Supplemental Restraint System (SRS) operation thus needing its proper orientation to be protected. An RCM replacement is necessary even without air bag deployment when the vehicle suffered a collision that damaged the center tunnel area because the mounting and bracket exhibit deformation. Complete replacement with proper mounting area restoration is required. All personnel working with SRS vehicles and air bag modules need to wear protective safety glasses because accidental deployment injuries can occur. It is vital to check sensor orientation following a collision since you need to replace and place correctly any SRS components which show damage. The back up power supply should be drained by disconnecting the battery ground cable while waiting for one minute. Personal and accidental safety demands complete cut-off of all additional batteries and power supplies during this procedure. The electronic modules exhibit sensitivity to static charges because this leads to system harm. The system demands new components to fix it; reinstall the original part before undertaking another diagnostic process if problems arise. Installation requires reversing all removal procedures starting with disconnecting the battery ground cable followed by removing the center console and rear vent duct and extension duct and moving the shifter aside before disconnecting the shifter interlock cable then removing the shifter retaining bolts and at last removing the RCM by removing its electrical connector locking clips and disconnecting electronic connectors. Proceed with testing the functioning of the air bag system post-installation.