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Home >> Volvo >> 1992 >> 940 GL, AW70L >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Self-Diagnostic System >> Notes
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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.