Technical No brake lights

[cbr1000]

Hi all. 2004 2.0jtd, brake lights stopped working. Garage say cannot trace fault so might be problem with ecu!!! Anyone have any suggestions as to what fault might be please??

 

[Most Easterly Pandas]

So what exactly have they done in the fault tracing? Checked switch, checked bulbs, and checked ALL wiring linked to the brake lights for continuity

Have they read the ECU on live scan to check its getting a feed from the switch