NHTSA ID Number: 10181937
Manufacturer Communication Number: TSB 20-2374
Summary
Some 2019-2020 Ranger vehicles may exhibit random Trailer Connected/Disconnected messages in the instrument panel cluster (IPC) message center when no trailer is connected. This may be caused by corrosion and/or moisture in C4098 (4-pin trailer tow connector), C4099(4/7 way trailer tow connector), and/or inline C405. To correct the condition, follow the Service Procedure steps to inspect and repair the wiring and reprogram the trailer module (TRM).
Model:
2019-2020 Ranger
Issue: Some 2019-2020 Ranger vehicles may exhibit random Trailer Connected/Disconnected messages in the instrument panel cluster (IPC) message center when no trailer is connected. This may be caused by corrosion and/or moisture in C4098 (4-pin trailer tow connector), C4099 (4/7-way trailer tow brake electrical connector) and/or inline C405. To correct the condition, follow the Service Procedure steps to inspect and repair the wiring and reprogram the trailer module (TRM).
Action: Follow the Service Procedure steps to correct the condition on vehicles that meet all of the following criteria:
- 2019-2020 Ranger
- Trailer Connected/Disconnected message in the IPC message center when no trailer is connected
NOTE: Part quantity refers to the number of that service part number required, which may be different than the number of individual pieces. Service part numbers contain 1 piece unless otherwise stated. “As Needed” indicates the part is required but the number may vary or is not a whole number; parts can be billed out as non-whole numbers, including less than 1.
Parts
| Description | Quantity | Part Number |
| Wiring Harness – Refer To The Parts Catalog For The VIN Specific Application | 1 | 14405 |
| Rear Bumper Wiring Harness – Refer To The Parts Catalog For The VIN Specific Application | 1 | 15K868 |
| Pigtail Wiring Kit | 1 | 5U2Z-14S411- JA |
| Trailer Tow Brake Electrical Connector | 1 | FU5Z-14489-A |
| Rear Wiring Harness (Without Rear Bumper) | 1 | KB3Z- 13A576-C |
| Motorcraft® Electrical Grease | As Needed | XG-12
Electrical Grease
|
Service Procedure
- Reprogram the TRM using the latest software level of the appropriate Ford
diagnostic scan tool. - For vehicles equipped with a 4-pin trailer tow connector, proceed to Step 3. For vehicles equipped with a 4/7-way trailer tow connector mounted in the bumper, proceed to Step 7.
- Inspect connector C405 for corrosion. Is corrosion present?
(1). Yes – proceed to Step 4.
(2). No – proceed to Step 5.
- Replace the wiring harness(es) of the affected connector(s) and apply Motorcraft® Electrical Grease to the terminals and reconnect C405.
(1). When replacing the 15K868 harness, the 4-pin trailer tow connector on the new harness assembly is to be cut approximately 15 cm (6 inches) from the 4-pin trailer tow connector end. The cut-off 4-pin trailer tow connector should then be soldered onto the new harness using recommended splicing method 1 or 2 as shown in the Wiring Diagram, Cell 005, pages 5 or 6. Repair is complete.
NOTE: Do not use the butt splices provided with the service pigtail kit.
NOTE: Soldering the pigtail and using the dual wall heat shrink tubing will prevent moisture from migrating through the harness.
- Thoroughly dry connector C405 of any moisture and apply Motorcraft® XG-12 Electrical Grease to the terminals and reconnect C405.
- Replace C4098 with the service pigtail using recommended splicing method solder 1 or 2 as shown in the Wiring Diagram, Cell 005, pages 5 or 6. Repair is complete.
NOTE: Do not use the butt splices provided with the service pigtail kit.
NOTE: Soldering the pigtail and using the dual wall heat shrink tubing will prevent moisture from migrating through the harness.
- Inspect the trailer side connection terminals of the 4/7-way trailer tow connector mounted in the bumper for corrosion. Is there corrosion present?
(1). Yes – proceed to Step 8.
(2). No – proceed to Step 9.
- Replace the 4/7-way trailer tow connector.
- Inspect connectors C405 and C4099 for corrosion. Is corrosion present?
(1). Yes – replace the affected harness(es), apply Motorcraft® Electrical Grease to the terminals and reconnect C405 and C4099.
(2). No – thoroughly dry connectors C405 and/or C4099, apply Motorcraft® Electrical Grease to the terminals and reconnect C405 and C4099.
2 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| FORD | RANGER | 2019-2020 |
1 Associated Document
Manufacturer Communications
20-2374
27 October 2020
MC-10181937-0001.pdf 116.315KB
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- Unique bracket system for improved dash clearance
- Fully adjustable power and ramp time
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- No internal moving parts and no leveling required
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- 🏆【SIMPLE SETUP & USE】A detailed instruction manual with an easy-to-read LED digital display makes it easy to show settings, real-time diagnostic information, and alarms. For manual braking, simply move the manual lever to the left. Braking force will be applied to the trailer braking system based on the previously set braking force
- 🏆【EASY MOUNTING】Includes brackets and screws for simple installation. Features a plug-and-play port for easy disconnection. No horizontal installation required, can be installed in any direction
- 🏆【SATISFACTION GUARANTEE】Lrichy attaches great importance to product quality and customer shopping experience! We provide 2 Years of warranty service and a refund for product quality issues! If you have any problems, you can contact us via Amazon! Free exchange and refund policy for a truly hassle-free after-sales service!
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- ZERO-TOOL INSTALL - Plugs between the vehicle and trailer 7-way connectors with no permanent wiring; locking tab and retention strap help secure it. Strap stores inside the cap.
- HIGHLY RESPONSIVE - Triple-axis accelerometer maintains proportional trailer braking even if the phone screen locks, a call arrives or Bluetooth disconnects.
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SEOCONTENT-START
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 MT: 2019-2020 Ranger: Reprogram The TRM, Inspect And Repair Or Replace Wire Harness(es) Following The Service Procedure MT202374 Actual Time Repair/Claim Coding Causal Part: 15K868 Condition Code: X4
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SEOCONTENT-END
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