G - TESTS W/CODES
1995 Volvo 850
1995 ENGINE PERFORMANCE
Volvo - Self-Diagnostics
850
INTRODUCTION
If no faults were found while performing procedures in the
F - BASIC TESTING article, proceed with self-diagnostics. If no fault
codes are present, proceed to...
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G - TESTS W/CODES
1995 Volvo 850
1995 ENGINE PERFORMANCE
Volvo - Self-Diagnostics
850
INTRODUCTION
If no faults were found while performing procedures in the
F - BASIC TESTING article, proceed with self-diagnostics. If no fault
codes are present, proceed to the H - TESTS W/O CODES article for
diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).
NOTE: All voltage tests should be performed using a Digital
Volt-Ohmmeter (DVOM) with a minimum 10-megohm input
impedance, unless stated otherwise in testing procedures.
SELF-DIAGNOSTIC SYSTEM
RETRIEVING CODES
CAUTION: Self-diagnostics for fuel injection and ignition systems
are separate. Use proper information for system being
diagnosed.
Fuel Injection & Ignition Systems
Each system features a self-diagnostic function for fault
tracing. Codes are retrieved using diagnostic unit "A" located in
engine compartment, in front of right strut tower. Diagnostic unit "A"
is equipped with an LED indicator, activation button and function
selector cabl
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