MULTI-CONTOUR SEATS - INTERMITTENT MULTI-CONTOUR SEAT OPERATION AND/OR MASSAGE AND LUMBAR ADJUST INOPERATIVE
MULTI-CONTOUR SEATS - INTERMITTENT MULTI-CONTOUR SEAT OPERATION AND/OR MASSAGE AND LUMBAR ADJUST INOPERATIVE
TECHNICAL SERVICE BULLETIN
Reference Number(s): 19-2293, Date of Issue:
September 26, 2019
| FORD: |
2018-2019 Expedition; 2015-2019 Explorer; 2015-2019 F-150; 2017-2019 F-Super Duty |
| LINCOLN: |
2017-2019 Continental; 2016-2018 MKX; 2013-2019 MKZ; 2019 Nautilus; 2018-2019 Navigator |
ISSUE
Some 2015-2019 F-150/Explorer, 2017-2019 F-Super Duty/Continental, 2018-2019 Expedition/Navigator, 2016-2018 MKX, 2019 Nautilus, and 2013-2019 MKZ vehicles equipped with multi-contour seats may exhibit intermittent multi-contour seat operation and/or massage and lumbar adjust inoperative from the seat switch or SYNC screen with or without diagnostic trouble code (DTC) B1471, U024B, and/or U024C. This may be due to terminal fretting at the connector for the driver multi-contour seat module (SCMG) and passenger multi-contour seat module (SCMH). To correct the condition, follow the Service Procedure steps to replace the connectors and reroute the harness.
ACTION
Follow the Service Procedure steps to correct the condition on vehicles that meet all of the following criteria:
- One of the following vehicle lines:
- 2015-2019 F-150/Explorer
- 2017-2019 F-Super Duty/Continental
- 2018-2019 Expedition/Navigator
- 2016-2018 MKX
- 2019 Nautilus
- 2013-2019 MXZ
- Equipped with multi-contour seats
- Customer symptom of intermittent multi-contour seat operation and/or massage and lumbar adjust inoperative from the seat switch or SYNC
PARTS
PARTS INFORMATION
| Part Number |
Description |
Quantity |
| KU2Z-14S411-FA |
Pigtail Kit (2 Kits Required, 1 Kit Per Side) |
2 |
| W719352-S451 |
Front Seat Bolts (Navigator Only, Package Contains 4 Pieces, 4 Pieces Required, 2 Per Seat) |
1 |
| W718633-S451 |
Front Seat Bolts (Navigator Only, Package Contains 4 Pieces, 4 Pieces Required, 2 Per Seat) |
1 |
| WA-14-SBA |
Zip Tie Or Equivalent, Length Of 280 mm (11 In.) (Package Contains 50 Pieces, 2 Pieces Required, 1 Per Seat) |
As Needed |
| NAI837X |
Rotunda Coroplast Wiring Harness Tape Or Equivalent |
As Needed |
| Obtain Locally |
Rosin Core Mildly-activated (RMA) Solder |
As Needed |
LABOR TIMES
LABOR TIMES
| Description |
Operation No. |
Time |
| 2015-2019 F-150, 2018-2019 Expedition: Retrieve DTCs And Install Pigtail In Both (2) Front Seats Includes Time To Remove And Install Seat (Do Not Use With Any Other Labor Operations) |
192293A |
3.5 Hrs. |
| 2017-2019 Continental: Retrieve DTCs And Install Pigtail In Both (2) Front Seats Includes Time To Remove And Install Seat (Do Not Use With Any Other Labor Operations) |
192293B |
2.5 Hrs. |
| 2018-2019 Navigator: Retrieve DTCs And Install Pigtail In Both (2) Front Seats Includes Time To Remove And Install Seat (Do Not Use With Any Other Labor Operations) |
192293C |
2.4 Hrs. |
| 2013-2019 MKZ, 2016-2018 MKX, 2019 Nautilus: Retrieve DTCs And Install Pigtail In Both (2) Front Seats Includes Time To Remove And Install Seat (Do Not Use With Any Other Labor Operations) |
192293D |
3.5 Hrs. |
| 2017-2019 F-Super Duty: Retrieve DTCs And Install Pigtail In Both (2) Front Seats Includes Time To Remove And Install Seat (Do Not Use With Any Other Labor Operations) |
192293E |
3.6 Hrs. |
| 2015-2019 Explorer: Retrieve DTCs And Install Pigtail In Both (2) Front Seats Includes Time To Remove And Install Seat (Do Not Use With Any Other Labor Operations) |
192293F |
3.3 Hrs. |
REPAIR/CLAIM CODING
REPAIR/CLAIM CODING
| Causal Part: |
14D232 |
| Condition Code: |
x4 |
SERVICE PROCEDURE
NOTE:
Perform this procedure on both front seats.
- Remove the seat cover to access the SCMH and SCMG module. Refer to the Workshop Manual (WSM), Section 501-10A.
- Remove the harness shied to seat back frame retention clips and separate the plastic shield from the harness to access the circuits.
- Measure back 150 mm (5.9 in) from the edge of the plastic shield and mark the circuits to determine the cut location. The finished harness must extend a minimum of 300 mm (11.8 in) beyond the edge of the plastic shield. (Figure 1)
- The circuits for the left seat will run to the right side of the seat and the circuits for the right seat will run down toward the floor.
NOTE:
Do not use the butt connectors included with the pigtail kit for this repair. Each circuit must be connected with solder and covered with heat shrink tubing.
- Replace the harness connector with the new pigtail.
- Cut, solder, and heat shrink each circuit one at a time following the instructions included with the kit. (Figure 2)
- Wrap the new wiring with Coroplast tape or equivalent from the plastic harness shield to the connector.
- Install the plastic harness shield and secure with the 4 retention clips.
- Measure 105 mm (4.13 in) from the back for the new harness connector shell and place a mark on the new harness.
- Connect the new connector to the module and loop the harness above the module placing the mark on the harness applied in Step 7 on the top of the module next to the tube connections. (Figure 3)
- Secure the new harness to the module body using a minimum 280 mm (11 in) long zip tie.
- Reinstall the seat back cover. Refer to the WSM, Section 501-10A.