Pelimnary work: Diagnosis - Diagnostic Trouble Code (DTC) Readout 11

1. Ignition: OFF 2. Remove EA/CC/ISC module (N4/1). 3. Connect socket box (see connection diagram). Electrical wiring diagrams : 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. Two multimeters are required for the EA test program.