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

1. Ignition: OFF . 2. Connect socket box according to connection diagram (Figure 1 to 3). Electrical wiring diagrams : Electrical Troubleshooting Manual, Model 124 Electrical Troubleshooting Manual, Model 129 Electrical Troubleshooting Manual, Model 140

Equipment

Digital multimeter 1)

Fluke models 23, 83, 85, 87

1) Available through the MBUSA Standard Equipment Program.