ODB reader stopped working on my car, tried it in a Mercedes and it worked fine, back to my car - won't work.

Removed pins from OBD connector to test for clamping strength, all seem ok but I closed them up anyway - still no connection.

All 7 pins give expected readings in relation to ohms, voltage and continuity. Red power light and wifi light working on reader.

Until I can test another reader tomorrow what are the thoughts on this?

Reader also works ok on neighbours Focus

For anyone else who has the same problem I’ve found that my ODB11 reader works on other cars just no longer mine for some reason. Other readers work on my car.

Edited 10 July, 202510 Jul by Morph