Mercedes Benz

2010 Mercedes Benz C 63 AMG Sedan (204.077) V8-6.3L (156.985)   A L L Diagnostic Trouble Codes ( DTC ): B Code Charts FSCU4 (RIGHT) The voltage supply is too low. Test 1: Check power supply at control unit N118 (Fuel pump control module). Test 2: Possible cause: - N118 (Fuel pump control module) Affected functions: - Fuel system 1. Check power supply at control unit N118 (Fuel pump control module). Possible cause and remedy - Check fuses N10/1f4 (Fuse 4) and F33f113 (Prefuse 113). - Question - Are the fuses OK? YES Test prerequisite Test sequence - Switch on ignition. - Unplug 4-pin connector from component N118 (Fuel pump control module). - Unplug 8-pin connector from component N118 (Fuel pump control module). - Measure direct voltage with multimeter between sockets (Kl.30) N118.1.1 and (Kl.31) N118.1.2 - Measure direct voltage with multimeter between sockets (Kl.15) N118.2.5 and (Kl.31) N118.1.2 NOTE - Perform the test one after the other for each of t...