NHTSA ID Number: 10169898
Manufacturer Communication Number: TSB 19-2390
Summary
Some 2015-2019 F-150, 2015-2020 Explorer, 2017-2019 F-Super Duty, 2017-2020 Continental, 2018-2020 Expedition/Navigator, 2016-2018 MKX, 2019-2020 Nautilus, 2020 Aviator/Corsair and 2013-2020 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.
39 Affected Products
Vehicles
FORD | EXPLORER | 2015-2019 |
| FORD | F-150 | 2015-2019 |
| FORD | F-250 SD | 2017-2019 |
| FORD | F-350 SD | 2017-2019 |
| FORD | F-450 SD | 2017-2019 |
| FORD | F-550 SD | 2017-2019 |
| LINCOLN | AVIATOR | 2020 |
| LINCOLN | CORSAIR | 2020 |
| LINCOLN | MKX | 2016-2019 |
| LINCOLN | MKZ | 2013-2020 |
| LINCOLN | NAVIGATOR | 2018-2020 |
This bulletin supersedes 19-2293. Reason for update: Concern Carryover to New Model
Model:
2018-2020 Expedition
2015-2020 Explorer
2015-2019 F-150
2017-2019 F-Super Duty
2020 Aviator
2017-2020 Continental
2020 Corsair
2016-2018 MKX
2013-2020 MKZ
2019-2020 Nautilus
2018-2020 Navigator
Summary
This article supersedes TSB 19-2293 to update the vehicle model years affected.
Issue: Some 2015-2019 F-150, 2015-2020 Explorer, 2017-2019 F-Super Duty, 2017-2020 Continental,
2018-2020 Expedition/Navigator, 2016-2018 MKX, 2019-2020 Nautilus, 2020 Aviator/Corsair and 20132020 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
- 2017-2019 F-Super Duty
- 2017-2020 Continental
- 2018-2020 Expedition/Navigator
- 2016-2018 MKX
- 2019-2020 Nautilus
- 2013-2020 MXZ
- 2015-2020 Explorer
- 2020 Aviator/Corsair
- 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
| Description | Quantity | Part Number | |
| 2 Kits Required, 1 Kit Per Side | Pigtail Kit (2 Kits Required, 1 Kit Per Side) | 2 | KU2Z-14S411FA |
| Package Contains 4 Pieces, 4 Pieces Required, 2 Per Seat | Front Seat Bolts (Navigator Only, Package Contains 4 Pieces, 4 Pieces Required, 2 Per Seat) | 1 | W719352S451 |
| Package Contains 4 Pieces, 4 Pieces Required, 2 Per Seat | Front Seat Bolts (Navigator Only, Package Contains 4 Pieces, 4 Pieces Required, 2 Per Seat) | 1 | W718633S451 |
| Package Contains 50 Pieces, 2 Pieces Required, 1 Per Seat | Zip Tie Or Equivalent, Length Of 280 mm (11 In.) (Package Contains 50 Pieces, 2 Pieces Required, 1 Per Seat) | As Needed | WA-14-SBA
Motorcraft Wiring Strap - WA14SBA
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API |
| – | Rotunda Coroplast Wiring Harness Tape Or Equivalent | As Needed | NAI837X
Sale
Tesa Wire Loom Harness Tape Used by Mercedes BMW VW Audi by Tesa
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API |
| – | Rosin Core Mildly-activated (RMA) Solder | As Needed | Obtain Locally |
SEOCONTENT-START
TECHNICAL SERVICE BULLETIN
Multi-Contour Seats – Intermittent Multi-Contour Seat Operation
And/Or Massage And Lumbar Adjust Inoperative
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part
Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior
approvals are not altered by a TSB. NVLW/SPW/SSP/ESP coverage limits are determined by the
identified causal part and verified using the OASIS part coverage tool.
Labor Times
Description
Operation
No.
Time
2015-2019 F-150, 2018-2020 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)
192390A 3.5
Hrs.
2017-2020 Continental, 2020 Aviator: 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)
192390B 2.5
Hrs.
2018-2020 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)
192390C 2.4
Hrs.
2013-2020 MKZ, 2016-2020 MKX, 2019-2020 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)
192390D 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)
192390E 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)
192390F 3.3
Hrs.
2020 Explorer/Corsair: 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)
192390G 3.0
Hrs.
Repair/Claim Coding
Causal Part: 14D232
Page 2 of 5
https://www.fordservicecontent.com/Ford_Content/vdirsnethttps://static.oemdtc.com/TSB/EU/~WTSB19-2390/US/E… 1/3/2020
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)
(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.
Figure 1
- Replace the harness connector with the new pigtail.
(1). Cut, solder, and heat shrink each circuit one at a time following the instructions included with the kit. (Figure 2)
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)
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.
19-2390
19 December 2019
19-2293
26 September 2019
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