Mercedes Benz

Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement Parts 0456 The electronic analysis system for the O2 sensor in the engine control unit is defective. (P064E) Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963)  Diagnostic Trouble Codes  Page 507 Possible cause: - Test control unit. Affected functions: - Engine diagnosis - Exhaust system ------------------------------------------------- Test 1: Test control unit. 1. Test control unit. Test control unit. Possible cause and remedy - Erase fault memory and start engine. - Reread fault memory of control unit N3/10 (ME-SFI [ME] control unit).If fault reoccurs, replace component N3/10 (ME-SFI [ME] control unit). Read coding and transfer to the new control unit.End of test