03/02/2024
🚗 mercedes e240 w211
🛠️Drain parasitic battery
🛠️Front sam module repair
🛠️CAN communication
Vehicle will not started in one day,must jump start
Suspects drain battery or short circuit ground
Perform electrical system test
-ecu signal test
-ecu corrosion service
-Alternator charging test
-Rear sam module test
-Front sam module
-Auxiliary battery test
-Main battery test
Alarm siren system test&deactivated
Front sam module wiring troubleshooting & repair
Rear sam module wiring repair & troubleshooting
Wiring harness repair
Battery control module repair socket corrosion cleaning
Battery control module test
Front sam wiring harness repair
Under dash gateway wiring repair & solder
Main wire alternator & stater wiring test
Rear connection battery near sam module test & fix
Engine system programming
-throttle Calibrated
-transmission system learning
Engine systems full reset
