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Home >> BMW >> 1994 >> 850CSi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self Diagnostics >> Introduction

Engine Controls - Self Diagnostics: Introduction

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed with self-diagnostics. If no fault codes or only pass codes are present after entering self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES article 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 otherwise in testing procedures.
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