Help finding brake switch connection in harness

[moffa13]

Hello, my ESP is throwing an error code p00526 brake light switch implausible signal.

It is not receiving the test brake switch signal but the ecu is. The connection is after the coupling station on the bulkhead (after t11c/5)

The wire goes to the esp connector at t38/8 and the connection is D101 marked as "Connection 1 in engine compartment wiring harness"

Where do I find that connection ? Here is a picture of the wiring


Thanks!