Section 2 (Engine Controls - Self-Diagnostics With Codes): Introduction
WARNING: This page is about a different car, the 1998 Mercedes-Benz SL500, 1997 Mercedes-Benz SL500, 1997 Mercedes-Benz E420, and 1996 Mercedes-Benz SL500. However, it is still accessible from the selected car via links, so may be relevant.
If no faults were found while performing preliminary inspection, proceed with ENTERING SELF-DIAGNOSTICS. If no fault codes or only pass codes are present, proceed to HOW TO READ DIAGNOSTIC INFORMATION , then SYMPTOM DIAGNOSTICS for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).
NOTE:
All voltage tests should be performed with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless specifically stated different in testing procedures.