Lincoln Corsair Manuals

Lincoln Corsair: Supplemental Restraint System / General Procedures - Supplemental Restraint System (SRS) Depowering

Lincoln Corsair 2020-2024 Service Manual / Body and Paint / Body and Paint / Supplemental Restraint System / General Procedures - Supplemental Restraint System (SRS) Depowering

Depower

  WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.

  1.   WARNING: Before beginning any service procedure in this manual, refer to health and safety warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury.

    Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation).
  1. Determine if a SRS fault is present. Turn the ignition OFF and wait 10 seconds, then turn the ignition ON and monitor the airbag warning indicator. The airbag warning indicator illuminates continuously for approximately 6 seconds and then turns off. Continue to monitor the airbag warning indicator for approximately 30 seconds as this is the time required for the RCM to complete testing of the SRS .
    • If a SRS fault is present the airbag warning indicator either fails to light, remains lit continuously or flashes. The flashing may not occur until approximately 30 seconds after the ignition has been turned from OFF to ON. If this occurs, diagnose and repair any SRS faults before proceeding with other repairs.
    • If after the ignition has been turned ON for 30 seconds the airbag warning indicator remains unlit with no chime or SRS message displayed in the message center, no SRS fault is present.
    • If the airbag warning indicator is inoperative and a SRS fault exists, a chime sounds in a pattern of 5 sets of 5 beeps or a message displays in the message center. If this occurs, diagnose and repair the airbag warning indicator and any SRS faults before proceeding with other repairs.

No SRS Fault Present (with ignition ON, airbag warning indicator stays off after prove out)

  1.   WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Ignition must remain OFF until repair is complete. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

    Turn the ignition OFF and wait one minute before continuing vehicle service.

SRS Fault Present

  1. Turn the ignition OFF.
  1. Remove the RCM fuse or if equipped, BECMB fuse(s). Refer to Wiring Diagram Cell 11/Section 700-01 for fuse and relay information.
  1. For a vehicle equipped with a 3 blade BECMB / GWM fuse, install a 2 blade 10A fuse at the GWM position to allow the scan tool to communicate with the vehicle network.
  1. Turn the ignition ON.
  1. Using a diagnostic scan tool, carry out a Network Test. Verify that the RCM and, if equipped, BECMB does not respond to the Network Test. If the RCM or BECMB pass the Network Test, remove the correct RCM or BECMB fuse and repeat the Network Test to verify before proceeding.
  1. Turn the ignition OFF.
  1. Disconnect the battery.
    Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
  1. Wait at least one minute before continuing vehicle service.

    General Procedures - Pyrotechnic Device Disposal

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    General Procedures - Supplemental Restraint System (SRS) Repowering

    Repower   WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions...

    Other information:

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    Second Stage: Checking Tire Pressure

    WARNING: If the tire does not inflate to the recommended tire pressure within 15 minutes, stop and call roadside assistance.

    WARNING: The power plug may get hot after use and should be handled carefully when unplugging.

    Check the air pressure of your tires as follows:

    Lincoln Corsair. Second Stage: Checking Tire Pressure

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