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 MANUALSVOLVO2011C30 R-DESIGN, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL MODULE (ECM) DIAGNOSTIC TROUBLE CODES - 2 OF 8
2011 Volvo C30 R-Design, Automatic
Engine Control Module (ECM) Diagnostic Trouble Codes - 2 Of 8
2011 Volvo C30 R-Design, AutomaticSECTION Engine Control Module (ECM) Diagnostic Trouble Codes - 2 Of 8
- ECM-220D: Rear Heated Oxygen Sensor (Ho2S). Faulty Signal (B5244S4; 2008-2010)
- ECM-220F: Rear Heated Oxygen Sensor (Ho2S). Signal Too High (B5244S4; 2007-2010)
- ECM-2210: Rear Heated Oxygen Sensor (Ho2S). Faulty Signal (B5244S4; 2007-2010)
- ECM-2210: Rear Heated Oxygen Sensor (Ho2S). Signal Too High (B5244S4; 2007-2010)
- ECM-2210: Rear Heated Oxygen Sensor (Ho2S). Signal Too Low (B5244S4; 2007-2010)
- ECM-221B: Rear Heated Oxygen Sensor (Ho2S) Ageing, Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-221B: Rear Heated Oxygen Sensor (Ho2S) Ageing, Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-221C: Rear Heated Oxygen Sensor (Ho2S) Ageing, Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-221C: Rear Heated Oxygen Sensor (Ho2S) Ageing, Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-221D: Rear Heated Oxygen Sensor (Ho2S) Ageing, Bank 1. Signal Too Low (B5254T3; 2007-2008)
- ECM-221D: Rear Heated Oxygen Sensor (Ho2S) Ageing, Bank 1. Signal Too Low (B5254T7; 2008-2013)
- ECM-2220: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T3; 2007-2008)
- ECM-2220: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T7; 2008-2013)
- ECM-222B: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-222B: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-222C: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-222C: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-222D: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T3; 2007-2008)
- ECM-222D: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T7; 2008-2013)
- ECM-223B: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-223B: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-223C: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-223C: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-223D: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T3; 2007-2008)
- ECM-223D: Rear Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T7; 2008-2013)
- ECM-2250: Rear Heated Oxygen Sensor (Ho2S), Bank 1 (B5254T7; 2010-2013)
- ECM-23X0: Injector Cylinder X. Faulty Signal (B5244S4; 2007-2010)
- ECM-2400: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Faulty Signal (B5254T3; 2007-2008)
- ECM-2400: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Faulty Signal (B5254T7; 2008-2013)
- ECM-240B: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Missing (B5254T3; 2007-2008)
- ECM-240B: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Missing (B5254T7; 2008-2013)
- ECM-240C: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Too High (B5254T3; 2007-2008)
- ECM-240C: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Too High (B5254T7; 2008-2013)
- ECM-242D: Front Heated Oxygen Sensor (Ho2S), Bank 1. Slow Regulation (B5254T3; 2007-2008)
- ECM-242D: Front Heated Oxygen Sensor (Ho2S), Bank 1. Slow Regulation (B5254T7; 2008-2013)
- ECM-243B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-243B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-243C: Front Heated Oxygen Sensor (Ho2S). Signal Too High (B5254T3; 2007-2008)
- ECM-243C: Front Heated Oxygen Sensor (Ho2S). Signal Too High (B5254T7; 2008-2013)
- ECM-244B: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Missing (B5254T3; 2007-2008)
- ECM-244B: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Missing (B5254T7; 2008-2013)
- ECM-244C: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Too High (B5254T3; 2007-2008)
- ECM-244C: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Too High (B5254T7; 2008-2013)
- ECM-244D: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Too Low (B5254T3; 2007-2008)
- ECM-244D: Front Heated Oxygen Sensor (Ho2S), Bank 1, Heating. Signal Too Low (B5254T7; 2008-2013)
- ECM-2450: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T3; 2007-2008)
- ECM-2450: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T7; 2008-2013)
- ECM-245B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-245B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-245C: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-245C: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-245D: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T3; 2007-2008)
- ECM-245D: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T7; 2008-2013)
- ECM-246B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-246B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-2470: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T3; 2007-2008)
- ECM-2470: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T7; 2008-2013)
- ECM-247B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-247B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-247C: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-247C: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-248C: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-248C: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-248D: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T3; 2007-2008)
- ECM-248D: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T7; 2008-2013)
- ECM-249B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-249B: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-24AB: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-24AB: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-24C0: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T3; 2007-2008)
- ECM-24C0: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T7; 2008-2013)
- ECM-24CB: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T3; 2007-2008)
- ECM-24CB: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Missing (B5254T7; 2008-2013)
- ECM-24CC: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T3; 2007-2008)
- ECM-24CC: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too High (B5254T7; 2008-2013)
- ECM-24CD: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T3; 2007-2008)
- ECM-24CD: Front Heated Oxygen Sensor (Ho2S), Bank 1. Signal Too Low (B5254T7; 2008-2013)
- ECM-24D0: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T3; 2007-2008)
- ECM-24D0: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T7; 2008-2013)
- ECM-24EB: Rear Heated Oxygen Sensor (Ho2S). Slow Regulation (B5254T3; 2007-2008)
- ECM-24EB: Rear Heated Oxygen Sensor (Ho2S). Slow Regulation (B5254T7; 2008-2013)
- ECM-24EC: Rear Heated Oxygen Sensor (Ho2S). Slow Regulation (B5254T3; 2007-2008)
- ECM-24EC: Rear Heated Oxygen Sensor (Ho2S). Slow Regulation (B5254T7; 2008-2013)
- ECM-250A: Long-Term Fuel Trim. Lower Limit (B5244S4; 2007-2010)
- ECM-250A: Long-Term Fuel Trim. Upper Limit (B5244S4; 2007-2010)
- ECM-251A: Long-Term Fuel Trim. Lower Limit (B5244S4; 2008-2010)
- ECM-251A: Long-Term Fuel Trim. Upper Limit (B5244S4; 2008-2010)
- ECM-2600: Fuel Pressure Sensor. Signal Too High (B5244S4; 2007-2010)
- ECM-2600: Fuel Pressure Sensor. Signal Too Low (B5244S4; 2007-2010)
- ECM-260A: Fuel Pressure Sensor. Faulty Signal (B5244S4; 2007-2010)
- ECM-260A: Fuel Pressure Sensor. Signal Too High (B5244S4; 2007-2010)
- ECM-2610: Fuel Pump (FP) Control Module. Signal Too High (B5244S4; 2007-2010)
- ECM-2610: Fuel Pump (FP) Control Module. Signal Too Low (B5244S4; 2007-2010)
- ECM-261A: Fuel Pressure System. Faulty Signal (B5244S4; 2007-2010)
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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.