Depowering and repowering the srs system in Lincoln mks

Heating and the cooling both don't work ? Just one seat or all seats ?
Your best bet have it checked for DTC'S - diagnostic trouble codes to start .
Climate Controlled Seat Module (CCSM) Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1342 ECU Is Faulted CCSM INSTALL a new CCSM and CARRY OUT programmable module installation (PMI). REFER to Climate Controlled Seat Module . B1358 Ignition Switch or Blower Electronics Circuit Short to Ground CCSM Go To Pinpoint Test Q . B2477 Module Configuration Error CCSM This DTC indicates programmable module installation (PMI) has not been done to a newly installed module. CARRY OUT PMI. REFER to Section 418-01 . CLEAR the DTC. CARRY OUT the self-test. B2486 Climate Controlled Seat Module Voltage Out of Range CCSM DEPOWER the supplemental restraint system (SRS). REFER to Section 501-20B . DISCONNECT driver safety belt buckle pretensioner electrical connector or passenger safety belt buckle pretensioner electrical connector of the affected seat and CONNECT restraint system diagnostic tool 418-F395 to the safety belt buckle pretensioner harness connector. CONNECT the battery ground cable. CHECK circuit 294 (WH/LB) for a fault. REPAIR as needed. If okay, REFER to Section 414-01 . Once the repair is complete, DISCONNECT the restraint system diagnostic tool from the safety belt buckle pretensioner harness connector and CONNECT the safety belt buckle pretensioner connector of the affected seat. REPOWER the SRS. REFER to Section 501-20B . B2488 Thumbwheel Switch Voltage Out of Range High CCSM Go To Pinpoint Test R . B2521 Tach Circuit Failure CCSM Go To Pinpoint Test Q . B2729 Cushion Over-Temp Detected CCSM Go To Pinpoint Test S . B2730 Back Over-Temp Detected CCSM Go To Pinpoint Test S . B2731 Differential Temperature Fault CCSM Go To Pinpoint Test S . B2792 Heat Switch Short to Ground CCSM NOTE: If HEAT is pressed for greater than 20 seconds on the climate controlled seat switch, DTC B2792 will set in the CCSM.
CLEAR the DTC. If the DTC does not clear, DEPOWER the supplemental restraint system (SRS). REFER to Section 501-20B . DISCONNECT driver safety belt buckle pretensioner electrical connector or passenger safety belt buckle pretensioner electrical connector of the affected seat and CONNECT restraint system diagnostic tool 418-F395 to the safety belt buckle pretensioner harness connector. CONNECT the battery ground cable. CHECK circuit 1551 (VT/WH) for a short to ground. REPAIR as needed. If okay, INSTALL a new climate controlled seat switch. Once the repair is complete, DISCONNECT the restraint system diagnostic tool from the safety belt buckle pretensioner harness connector and CONNECT the safety belt buckle pretensioner connector of the affected seat. REPOWER the SRS. REFER to Section 501-20B . B2793 Cool Switch Short to Ground CCSM NOTE: If COOL is pressed for greater than 20 seconds on the climate controlled seat switch, DTC B2793 will set in the CCSM.
CLEAR the DTC. If the DTC does not clear, DEPOWER the supplemental restraint system (SRS). REFER to Section 501-20B . DISCONNECT driver safety belt buckle pretensioner electrical connector or passenger safety belt buckle pretensioner electrical connector of the affected seat and CONNECT restraint system diagnostic tool 418-F395 to the safety belt buckle pretensioner harness connector. CONNECT the battery ground cable. CHECK circuit 1550 (WH/OG) for a short to ground. REPAIR as needed. If okay, INSTALL a new climate controlled seat switch. Once the repair is complete, DISCONNECT the restraint system diagnostic tool from the safety belt buckle pretensioner harness connector and CONNECT the safety belt buckle pretensioner connector of the affected seat. REPOWER the SRS. REFER to Section 501-20B . U2362 UBP Invalid Data Node ID CCSM NOTE: DTC U2362 indicates a network concern, the CCSM is not the source of the fault.
CLEAR the DTC. If the DTC does not clear, REFER Section 418-01 .

NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the diagnostic procedure again.
All vehicles

1. Depower the system. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.

Vehicles with floor console

1. Remove the floor console. For additional information, refer to Section 501-10 .

Vehicles with utility tray

1. Remove the utility tray.
   1. Unscrew the two retainers.
   1. Remove the utility tray.

Sensor - Front Crash Removal
WARNING: Vehicle sensor orientation is critical for proper operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and properly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.
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.
WARNING: To reduce the risk of personal injury, do not use any memory saver devices.
NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the diagnostic procedure again.

1. Depower the system. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.

1. Remove the radiator upper sight shield (8C291).

1. Remove the air bag sensor.
   1. Disconnect the air bag sensor electrical connector.
   1. Remove the three screws.
   1. Remove the air bag sensor.
   2. SECTION 501-20B: Supplemental Restraint System 2000 Town Car Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 06/10/2004 Sensor - Side Crash Removal
      WARNING: Vehicle sensor orientation is critical for proper system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and properly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.
      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.
      WARNING: To reduce the risk of personal injury, do not use any memory saver devices.
      NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
      NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
      NOTE: Repair is made by installing a new part only. If the new part does not correct the condition, install the original part and perform the diagnostic procedure again.
      NOTE: Left side is shown, right side is similar.
      NOTE: The side crash sensors are located under the carpet beneath the front seats.
      
      1. Position the seat to gain access to all fasteners.
      1. Depower the system. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in this section.
      1. Remove the front seat. For additional information, refer to Section 501-10 .
      1. Remove the safety belt anchor bolt cover.
      1. Remove the bolt and the safety belt anchor.
      1. Remove the front and rear door scuff plates.
      1. Remove the lower B-pillar trim panel.
      1. Remove the carpet to access the side crash sensor.
      1. Remove the side crash sensor.
         1. Remove the retaining bolts and position the side crash sensor in order to disconnect the electrical connector.
         1. Disconnect the electrical connector.
         1. Remove the side crash sensor and bracket.

Check with dealer might be a recall for defective srs.

- Scan for error codes and interpret the live data.
- Check fuel control system.
- Check fuel system.
- Check ignition system.
- Check fuel for water contamination.

Need a scan tool & factory diagnostic manuals to work on the
seats & the heat.

Could be about eight different things

Could be a under seat blower motor

Nothing you can do or most shops will touch,
unfortunately a dealer doesn't work on them
either,but they have a outside seat person come
in after the service bays close at night to do seats

Supplemental Restraint System (SRS) Depowering and Repowering

Depowering Procedure

WARNING: Always wear safety glasses when repairing an air bag supplemental

restraint system (SF3) vehicle and when handling an air bag module. This will reduce

the risk of injury in the event of an accidental deployment.

WARNING: Never probe the connectors on the airbag module. Doing so can result in

air bag deployment, which can result in personal injury.

WARNING: To reduce the risk of personal injury, do not use any memory saver

devices.

NOTE: Ifa seat equipped with a seat mounted side airbag and or a safety belt

pretensioner (if equipped) system is being serviced, the supplemental restraint system

(SES) must be depowered.

NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the

ignition switch is ON. This is normal operation and does not indicate a supplemental

restraint system (SRS) fault.

NOTE: The 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 (Cm), located below the LH side of the instrument panel,

remove the cover and the restraints control module (RCM) fuse F223 (lOA) from

the CTh. For additional information, refer to the Wiring Diagram Manual.

4. Turn the ignition ON and visually monitor the air bag indicator for at least 30

seconds. The air bag indicator will remain lit continuously (no flashing) if the correct

ROsI fuse has been removed, If the air bag indicator does not remain lit

continuously, remove the correct RCM fuse before proceeding

5. Turn the ignition switch to OFF.

6. 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 set-ricing,

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.

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.

Repoweri.ng Procedure

1. WARNING: The restraint system diagnostic tool is for restraint system service

only. Remove from vehicle prior to road use. Failure to remove could result in

injury and possible violation of vehicle safety standards.

Make sure all restraint system diagnostic tool(s) that may have been installed during

the repair have been removed from the vehicle and all SRS components are

connected.

2. Turn the ignition switch from OFF to ON.

3. Install the ROsI fuse F2.23 (lOA) to the DB and install the cover.

4. WARNING: Be sure that nobody is in the vehicle and that there is nothing

blocking or set in front of any air bag module when the battery ground cable is

connected.

Connect the battery ground cable.

5. Prove out the supplemental restraint system (SRS) as follows:

Turn the ignition key from ON to OFF. Wait 10 seconds, then turn the key back to

ON and visually monitor the air bag indicator with the air bag modules installed. The

air bag indicator will light continuously for approximately six seconds and then turn

off. If an air bag supplemental restraint system (SF3) fault is present, the air bag

indicator will:

- failto light.

- remain lit continuously.

- flash.

The flashing might not occur until approximately 30 seconds after the ignition switch

has been turned from the OFF to the ON position. This is the time required for the

restraints control module (RCM) to complete the testing of the SRS. if the air bag

indicator is inoperative and a SRS fault exists, a chime will sound in a pattern of 5

sets of 5 beeps. If this occurs, the air bag indicator and any SRS fault discovered

must be diagnosed and repaired.

SECTION 211-05: Steering Column Switches 2001 Focus Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 09/15/2004 Ignition Switch Removal

1. Depower the supplemental restraint system (SRS). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, GENERAL PROCEDURES).

1. Detach the instrument panel lower panel.
   1. Remove the screws.
   1. Release the fastener.

1. Remove the instrument panel lower panel.
   • Disconnect the hood release.
   • Disconnect the data link (DLC) electrical connector.

1. Detach the steering column upper shroud.
   • Using a thin bladed screwdriver, release the two clips (one each side).

1. Remove the steering column lower shroud.
   1. Release the steering column locking lever (if equipped).
   1. Remove the screws.
   • Remove the ignition key.

1. Disconnect the electrical connectors.
   • Disconnect the ignition switch electrical connector.
   • Disconnect the turn signal/flash-to-pass switch electrical connector.

1. Remove the ignition switch.
   • Release the clips.

Installation

1. To install, reverse the removal procedure.

1. Repower the supplemental restraint system (SRS). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, GENERAL PROCEDURES).

Seat Backrest — Front Printable View (404 KB) Disassembly
All vehicles
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.
WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
WARNING: Front seat back trim covers installed on seats equipped with side air bags cannot be repaired, they are to be replaced. Cleaning is permissible.
WARNING: To reduce the risk of personal injury, do not use any memory saver devices.
NOTE: If a seat equipped with a seat mounted side air bag and/or a safety belt pretensioner (if equipped) system is being serviced, the supplemental restraint system (SRS) must be depowered.
NOTE: The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

1. Depower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of Section 501-20B.

1. Remove the head restraint.

1. Remove the head restraint guides.
   • Using a suitable screwdriver, depress the locking tang.