Self-Diagnostic System: Notes

WARNING: This page is about a different car, the 1990 Cadillac Allante. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If no trouble code exist, repair by symptom. See SYSTEM TESTS .

NOTE: Many intermittent problems are due to poor electrical connections. Diagnosis of intermittent problems should begin with visual and physical check of all connections and wiring involved in the circuit before replacing any component of that particular system.