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

1. Review section 11 , 12 , 21 , 22 , 23 , 31 , 2. Ignition: OFF 3. Fuse on relay module (K40) in order. Relay module in order. Relay module plugs 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.
Digital multimeter	Fluke models 23, 77 III, 83, 85, 87
Y - fitting	117 078 01 45