V50 AWD L5-2.5L Turbo VIN 68 B5254T3 (2005)
Engine Control Module: Description and Operation
Diagnostic Functions
Diagnostic functions
Overview
See Overview See: Computers and Control Systems/Description and Operation/Engine Control Module (ECM)/Overview.
Misfire diagnostic
See Misfire diagnostic See: Computers and Control Systems/Description and Operation/Misfire Diagnostics.
Camshaft diagnostics (CVVT)
See Camshaft diagnostics (CVVT) See: Computers and Control Systems/Description and Operation/Camshaft Diagnostics (CVVT).
Leak diagnostics (certain markets only)
To minimize false detection of leakage, new software has been released for the Engine control module (ECM). The software has been released
afterwards, in order of priority, started at the end of 2006.
To check the current software version, see Vehicle communication in VIDA.
The improved software version makes diagnostics more robust and durable against aging and wear of the leak diagnostic unit. It affects strategies,
behavior and to a degree also read off parameters.
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Leak diagnostics, original version (2004)
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Leak diagnostics, original version (2005-) See: Computers and Control Systems/Description and Operation/Leak Diagnostics (Certain Markets
Only)/Leak Diagnostics, Original Version (2005-)
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Leak diagnostics, improved version (2004-) See: Computers and Control Systems/Description and Operation/Leak Diagnostics (Certain Markets
Only)/Leak Diagnostics, Improved Version (2004-)
Heated oxygen sensor (HO2S) diagnostics
See Heated oxygen sensor (HO2S) diagnostic See: Computers and Control Systems/Description and Operation/Heated Oxygen Sensor (HO2S)
Diagnostic.
Three-way catalytic converter (TWC) diagnostics
See Three-way catalytic converter (TWC) diagnostics See: Computers and Control Systems/Description and Operation/Three-Way Catalytic Converter
(TWC) Diagnostics.
Fuel pressure regulation, diagnostics
See Fuel pressure regulation, diagnostics See: Computers and Control Systems/Description and Operation/Fuel Pressure Regulation, Diagnostics.
