Retrieving & Erasing Diagnostic Trouble Codes: Notes

WARNING: This page is about a different car, the 2004 Mercedes-Benz C230 and 2003 Mercedes-Benz C230. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before replacing any components that scan tool suggests are faulty, ensure that all wiring connections and harness connectors are okay. Ensure that power and ground circuits are functioning properly. For circuit identification, see appropriate WIRING DIAGRAM under ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS for vehicle being tested.