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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1269 (Supplemental Inflatable Restraint System) >> General Procedures >> Supplemental Restraint System (SRS) Deactivation and Reactivation >> Depowering Procedure

Depowering Procedure

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Always wear eye protection when servicing a vehicle. Failure to follow this instruction may result in serious personal injury.
WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of serious personal injury or death.
WARNING: Never probe the electrical connectors on air bag, safety canopy or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
WARNING: To reduce the risk of accidental deployment, do not use any memory saver devices. Failure to follow this instruction may result in serious personal injury or death.
NOTE: To avoid potential damage to the restraints control module (RCM), make sure the RCM and bracket assembly is secured to the floor pan and the supplemental restraint system (SRS) is depowered before either disconnecting or reconnecting the RCM electrical connectors.
NOTE: The air bag warning indicator illuminates when the restraints control module (RCM) fuse is removed and the ignition switch is ON.
NOTE: The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
  1. Turn all vehicle accessories OFF.
  2. Turn the ignition switch to OFF.
  3. At the central junction box (CJB), located below the LH side of the instrument panel, remove the cover and the RCM fuse 20 (10A) from the CJB. For additional information, refer to SYSTEM WIRING DIAGRAMS - E350 SUPER DUTY .
  4. Turn the ignition ON and visually monitor the air bag warning indicator for at least 30 seconds. The air bag warning indicator will remain lit continuously (no flashing) if the correct RCM fuse has been removed. If the air bag warning indicator does not remain lit continuously, remove the correct RCM fuse before proceeding.
  5. Turn the ignition switch to OFF.
    6. WARNING: Always deplete the backup power supply before repairing or installing any new front or side air bag supplemental restraint system (SRS) component and before servicing, removing, installing, adjusting or striking components near the front or side impact sensors or the restraints control module (RCM). Nearby components include doors, instrument panel, console, door latches, strikers, seats and hood latches.

    See DESCRIPTION AND OPERATION  for location of the RCM and impact sensor(s).

    To deplete the backup power supply energy, disconnect the battery ground cable and wait at least 1 minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).

    Failure to follow these instructions may result in serious personal injury or death in the event of an accidental deployment.

  6. Disconnect the battery ground cable and wait at least one minute. For additional information, refer to BATTERY, MOUNTING AND CABLES article.
    7. NOTE: Make sure the wheels are in the straight-ahead position.
  7. Remove the driver air bag module.
    1. Remove the 2 driver air bag module bolt covers (1 shown).
    2. Remove the 2 driver air bag module bolts (1 shown).
    3. Disconnect the horn electrical connector.
    4. Disconnect the clockspring electrical connector.
    5. Remove the driver air bag module.
    8. Fig 1: Removing Driver Air Bag Module
    GF0011552Courtesy of FORD MOTOR CO.
  8. Remove the RH lower instrument finish panel.
    9. Fig 2: Locating RH Lower Instrument Finish Panel
    G03890086Courtesy of FORD MOTOR CO.
  9. Remove the RH lower instrument panel reinforcement.
    10. Fig 3: Locating RH Lower Instrument Panel Reinforcement Retainer Bolts
    G03890087Courtesy of FORD MOTOR CO.
  10. Disconnect the passenger air bag module electrical connector.
    11. Fig 4: Locating Passenger Air Bag Module Electrical Connector
    G03891336Courtesy of FORD MOTOR CO.
  11. Install the RCM fuse 20 (10A) to the CJB.
  12. Connect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES article.
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