u0137:00-8A - Trailer Brake Module Malfunction 2017 Limited

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Bilal

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May 31, 2021
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Uae
Hi guys, bought a used expedition '17 limited (4000k only) but had driver side frontal repairs.

"Trailer brake module malfunction" shows on display on start up. Checked the fuse #18 30A "Trailer brake" and #31 5A "Trailer brake on/off" , both are ok.

While poking under the hood found two interesting things,
  1. Fuse 68 & 69 (Anti-lock brake system valves & Anti-lock brake system pump.) were blown previously and had a workaround copper wire in them.
  2. There was a connector in the harness not attached on the driver side.

Any clues, how to proceed. Attaching the pics.

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