Mercedes Benz

Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement Parts Part 2 No CAN message was received from control unit Engine management. 1.3.2.1.5. Check power supply at control unit EZS. Test prerequisite - Battery voltage is OK. - Fuse F34.f36 is OK. Status of relevant actual value: - Power supply:Warning! Communication with ECU required. Specified value - Power supply [11.0...14.5] V Question - Is the actual value o.k.? YES The actual value is okay.Possible cause and remedy - In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose contact and corrosion.. - Check alternator. End of test NO The actual value is not o.k.Test sequence - Switch off ignition. - Detach sockets A and C at component N73 (EIS [EZS] control unit). - Measure direct voltage with multimeter between sockets (N73) B.2 and (N73) C.1 Specified value - Voltage [11.0...14.5] V Questi...