Vacuum/Pressure Pump Switch: Service and Repair

LUMBAR CONTROL SWITCH

Special Tool(s):

SPECIAL TOOL(S)

REMOVAL

WARNING:
- Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
- After deployment, the air bag surface can contain deposits of sodium hydroxide, a product of the gas generant combustion that is irritating to the skin. Wash your hands with soap and water afterwards.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.

NOTE: Driver side shown, passenger side similar.

All vehicles

1. WARNING: To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing any front or side air bag supplemental restraint system (SRS) components and before servicing, replacing, adjusting or striking components near the front or side air bag sensors, such as doors, instrument panel, console, door latches, strikers, seats and hood latches.

The side impact sensors are located at or near the base of the B-pillars.

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

Disconnect the battery ground cable and wait at least one minute.

Vehicles with seat side air bags

2. WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions, notes, and instructions in the supplemental restraint system (SRS) deactivation/reactivation procedure.

Deactivate the supplemental restraint system (SRS).

All vehicles

3. WARNING: To reduce the risk of serious personal injury, read and follow all warnings, notes, and instructions in the front seat removal and installation procedure.

Remove the affected seat.

Crown Victoria / Grand Marquis







4. NOTE: Take care in removing the power lumbar bezel, pry the side of bezel at tabs to remove.

Remove the cover.







5. Disconnect the lumbar control switch electrical connector. Remove the lumbar control switch.

Marauder
6. Disassemble the seat cushion.







7. Disconnect the power lumbar switch electrical connector.







8. Insert a screwdriver between the bezel and the power lumbar switch, pry the tab and push the switch through the bezel.







9. Remove the power lumbar switch.

INSTALLATION

WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions, and notes at the beginning of the removal procedure.

Marauder







1. Install the power lumbar switch until seated into bezel.







2. Connect the power lumbar switch electrical connector.
3. Assemble the seat cushion.

Crown Victoria / Grand Marquis







4. Connect the lumbar control switch electrical connector. Install the lumbar control switch.







5. Install the cover.

All vehicles

6. WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions, notes, and instructions in the seat removal and installation procedure.

Install the affected seat.

Vehicles with seat side air bags

7. WARNING: To reduce the risk of serious personal injury, read and follow all warnings, cautions, notes, and instructions in the supplemental restraint system (SRS) deactivation/reactivation procedure.

Reactivate the supplemental restraint system (SRS).

All vehicles

8. WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from the vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.

With all the restraint system diagnostic tools removed, prove out the supplemental restraint system (SRS).