Preliminary work: Diagnosis - Diagnostic Trouble Code (DTC) Memory 11

1. Review 11 , 12 , 22 , 23 , 31 , 2. Ignition: OFF 3. Fuse on passenger-side fuse and relay module (K40/4) in order, Passenger-side fuse and relay module in order and connected. 4. Disconnect engine control module (IFI) (N3/7) connector. 5. Connect socket box with test cable to engine control module (IFI) (N3/7). Electrical wiring diagrams : Electrical Troubleshooting Manual, Model 210, Volume 1

Special Tools

Test equipment; See MBUSA Standard Service Equipment Program

Description	Brand, model, etc.
Multimeter	Fluke models 23, 77 III, 83, 85, 87
Engine analyzer	Bear DACE Hermann Electronic
Y - fitting	117 078 01 45