in the end, I unsolder the resistor R04 and I can access other ecu

Hello, I come to you because I just bought an ELM327 v1.5a interface in metal box. When I connect on FES, I can only access the ECU's only injection. So, I dismounted to see if it really is a 1.5a version and the electronic card is good but in this version marqs FES during the test I say it's a vers...