LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 1993 >> 850 Standard >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Self-Diagnostic System >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Self-Diagnostic System: Notes

All models are equipped with self-diagnostic systems. A CHECK ENGINE light glows to signal driver of a system malfunction. Fault codes are retrieved through the diagnostic unit, located in left rear corner of engine compartment on 4-cylinder models or in right rear corner of engine compartment on 6-cylinder models. The diagnostic unit is equipped with an LED indicator, activation button and function select cable.