Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2009C70 AUTOMATICREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTGAUGES & INSTRUMENT PANELSELECTRONICS - DESIGN AND FUNCTION - 2 OF 4ENGINE CONTROL MODULE (ECM) (B5244S4; 2006-2007)DIAGNOSTIC FUNCTIONSOVERVIEWEMISSIONS RELATED DIAGNOSTIC FUNCTIONS
2009 Volvo C70 Automatic
Emissions Related Diagnostic Functions
2009 Volvo C70 AutomaticSECTION Emissions Related Diagnostic Functions
The engine control module checks that the emission-related systems are working. These systems are checked by running a diagnostic function. The diagnostic function checks the components and that the system is functioning.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.