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.
2004 Volvo V70 T-5, StandardFACTORY OEM SERVICE PROCEDURE
Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 9 Of 14
- ECM-6110: Electric Cooling Fan Relay, Signal Too High, Permanent Fault (B5254T2; 2003)
- ECM-6110: Electric Cooling Fan Relay, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2001-2003)
- ECM-6110: Electric Cooling Fan Relay, Signal Too Low, Intermittent Fault (B5254T2; 2003)
- ECM-6110: Electric Cooling Fan Relay, Signal Too Low, Permanent Fault (B5234T3; B5244T3; 2001-2003)
- ECM-6110: Electric Cooling Fan Relay, Signal Too Low, Permanent Fault (B5254T2; 2003)
- ECM-6110: Engine Cooling Fan (FC) Relay, Signal Missing (B5234T3; B5254T2; B5254T4; 2004)
- ECM-6110: Engine Cooling Fan (FC) Relay, Signal Too High (B5234T3; B5254T2; B5254T4; 2004)
- ECM-6110: Engine Cooling Fan (FC) Relay, Signal Too Low (B5234T3; B5254T2; B5254T4; 2004)
- ECM-611B: Camshaft Control, Intake, Faulty (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-612B: Camshaft Reset Valve, Intake, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-2006)
- ECM-612C: Camshaft Reset Valve, Intake, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-612D: Camshaft Reset Valve, Intake, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-6140: Camshaft Control, Exhaust, Slow (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-614B: Camshaft Control, Exhaust, Faulty (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-616B: Camshaft Reset Valve, Exhaust, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-2006)
- ECM-616C: Camshaft Reset Valve, Exhaust, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-616D: Camshaft Reset Valve, Exhaust, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-6200: Engine Cooling Fan (FC) Control Module, Faulty Signal (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-620A: Idling Speed, High (B5244S; 2005-2007)
- ECM-620A: Idling Speed, High (B5244S6; 2005-2006)
- ECM-620A: Idling Speed, Low (B5244S; 2005-2007)
- ECM-620A: Idling Speed, Low (B5244S6; 2005-2006)
- ECM-620A: Idling Speed, Too Little Response (B5244S; 2001-2004)
- ECM-620A: Idling Speed, Too Little Response (B5244S6; 2003-2004)
- ECM-620A: Idling Speed, Too Much Response (B5244S; 2001-2004)
- ECM-620A: Idling Speed, Too Much Response (B5244S6; 2003-2004)
- ECM-620B: Engine Cooling Fan Control Module, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-620C: Engine Cooling Fan (FC) Control Module, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-620D: Engine Cooling Fan (FC) Control Module, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-6220: Ecu-Box Cooling Fan, Signal Missing (B5234T3; 2002-2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Missing (B5244T3; 2002-2003)
- ECM-6220: Ecu-Box Cooling Fan, Signal Missing (B5254T2; 2003-2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Missing (B5254T4; 2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too High (B5234T3; 2002-2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too High (B5244T3; 2002-2003)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too High (B5254T2; 2003-2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too High (B5254T4; 2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too Low (B5234T3; 2002-2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too Low (B5244T3; 2002-2003)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too Low (B5254T2; 2003-2004)
- ECM-6220: Ecu-Box Cooling Fan, Signal Too Low (B5254T4; 2004)
- ECM-6220: Engine Cooling Fan (FC), Faulty Signal (B5244T5; B5254T2; B5254T4; 2006)
- ECM-630B: A/C Relay, Signal Missing, Intermittent Fault (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-630B: A/C Relay, Signal Missing, Permanent Fault (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-630C: A/C Relay, Signal Too High, Intermittent Fault (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-630C: A/C Relay, Signal Too High, Permanent Fault (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-630D: A/C Relay, Signal Too Low, Intermittent Fault (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-630D: A/C Relay, Signal Too Low, Permanent Fault (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-6400: Camshaft Reset Valve, Intake Signal Missing (B5244S; 2005-2007)
- ECM-6400: Camshaft Reset Valve, Intake Signal Missing (B5244S6; 2005-2006)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too High (B5244S; 2005-2007)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too High (B5244S6; 2005-2006)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too High (B5254T2; 2003-2004)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too High (B5254T4; 2004)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too Low (B5244S; 2005-2007)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too Low (B5244S6; 2005-2006)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too Low Or Signal Missing (B5254T2; 2003-2004)
- ECM-6400: Camshaft Reset Valve, Intake Signal Too Low Or Signal Missing (B5254T4; 2004)
- ECM-6400: Camshaft Reset Valve, Signal Missing (B5244S; 2001-2004)
- ECM-6400: Camshaft Reset Valve, Signal Missing (B5244S6; 2003-2004)
- ECM-6400: Camshaft Reset Valve, Signal Too High (B5244S; 2001-2004)
- ECM-6400: Camshaft Reset Valve, Signal Too High (B5244S6; 2003-2004)
- ECM-6400: Camshaft Reset Valve, Signal Too Low (B5244S; 2001-2004)
- ECM-6400: Camshaft Reset Valve, Signal Too Low (B5244S6; 2003-2004)
- ECM-640A: Camshaft Control, Intake, Faulty Signal (B5254T2; 2003-2004)
- ECM-640A: Camshaft Control, Intake, Faulty Signal (B5254T4; 2004)
- ECM-640A: Camshaft Control, Intake, Signal Too High (B5244S; 2005-2007)
- ECM-640A: Camshaft Control, Intake, Signal Too High (B5244S6; 2005-2006)
- ECM-640A: Camshaft Control, Intake, Signal Too Low (B5244S; 2005-2007)
- ECM-640A: Camshaft Control, Intake, Signal Too Low (B5244S6; 2005-2006)
- ECM-640A: Camshaft Reset Valve, Faulty Signal (B5244S; 2001-2004)
- ECM-640A: Camshaft Reset Valve, Faulty Signal (B5244S6; 2003-2004)
- ECM-640C: Turbocharger (TC) Control System, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-640D: Turbocharger (TC) Control System, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-640F: Camshaft Position, Intake, Signal Too High (B5244S; 2005-2007)
- ECM-640F: Camshaft Position, Intake, Signal Too High (B5244S6; 2005-2006)
- ECM-640F: Camshaft Position, Intake, Signal Too Low (B5244S; 2005-2007)
- ECM-640F: Camshaft Position, Intake, Signal Too Low (B5244S6; 2005-2006)
- ECM-640F: Camshaft Reset Valve, Faulty Signal (B5244S; 2001-2004)
- ECM-640F: Camshaft Reset Valve, Faulty Signal (B5244S6; 2003-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Missing (B5244S; B5244S6; 2003-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Missing (B5244S; 2005-2007)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Missing (B5244S6; 2005-2006)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too High (B5244S; B5244S6; 2003-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too High (B5244S; 2005-2007)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too High (B5244S6; 2005-2006)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too High (B5254T2; 2003-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too High (B5254T4; 2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low (B5244S; B5244S6; 2003-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low (B5244S; 2005-2007)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low (B5244S6; 2005-2006)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low Or Signal Missing (B5234T3; 2002-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low Or Signal Missing (B5244T3; 2002-2003)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low Or Signal Missing (B5254T2; 2003-2004)
- ECM-6410: Camshaft Reset Valve, Exhaust, Signal Too Low Or Signal Missing (B5254T4; 2004)
- ECM-641A: Camshaft Control, Exhaust, Faulty Signal (B5234T3; 2002-2004)
- ECM-641A: Camshaft Control, Exhaust, Faulty Signal (B5244T3; 2002-2003)
- ECM-641A: Camshaft Control, Exhaust, Faulty Signal (B5254T2; 2003-2004)
- ECM-641A: Camshaft Control, Exhaust, Faulty Signal (B5254T4; 2004)
- ECM-641A: Camshaft Control, Exhaust, Signal Too High (B5244S; 2005-2007)
- ECM-641A: Camshaft Control, Exhaust, Signal Too High (B5244S6; 2005-2006)
- ECM-641A: Camshaft Control, Exhaust, Signal Too Low (B5244S; 2005-2007)
- ECM-641A: Camshaft Control, Exhaust, Signal Too Low (B5244S6; 2005-2006)
- ECM-641A: Camshaft Reset Valve, Exhaust, Faulty Signal (B5244S; B5244S6; 2003-2004)
- ECM-641F: Camshaft Position, Exhaust, Signal Too High (B5244S; 2005-2007)
- ECM-641F: Camshaft Position, Exhaust, Signal Too High (B5244S6; 2005-2006)
- ECM-641F: Camshaft Position, Exhaust, Signal Too Low (B5244S; 2005-2007)
- ECM-641F: Camshaft Position, Exhaust, Signal Too Low (B5244S6; 2005-2006)
- ECM-641F: Camshaft Reset Valve, Exhaust, Faulty Signal (B5244S; B5244S6; 2003-2004)
- ECM-643A: Camshaft Position, Exhaust, Signal Too High (B5234T3; 2002-2004)
- ECM-643A: Camshaft Position, Exhaust, Signal Too High (B5244T3; 2002-2003)
- ECM-643A: Camshaft Position, Exhaust, Signal Too Low (B5234T3; 2002-2004)
- ECM-643A: Camshaft Position, Exhaust, Signal Too Low (B5244T3; 2002-2003)
- ECM-643A: Camshaft Position, Intake, Signal Too High (B5254T2; 2003-2004)
- ECM-643A: Camshaft Position, Intake, Signal Too High (B5254T4; 2004)
- ECM-643A: Camshaft Position, Intake, Signal Too Low (B5254T2; 2003-2004)
- ECM-643A: Camshaft Position, Intake, Signal Too Low (B5254T4; 2004)
- ECM-6440: Camshaft Reset Valve, Signal Missing, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-6440: Camshaft Reset Valve, Signal Missing, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-6440: Camshaft Reset Valve, Signal Too High, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-6440: Camshaft Reset Valve, Signal Too High, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-6440: Camshaft Reset Valve, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-6440: Camshaft Reset Valve, Signal Too Low, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-644A: Camshaft Position, Exhaust, Signal Too High (B5254T2; 2003-2004)
- ECM-644A: Camshaft Position, Exhaust, Signal Too High (B5254T4; 2004)
- ECM-644A: Camshaft Position, Exhaust, Signal Too Low (B5254T2; 2003-2004)
- ECM-644A: Camshaft Position, Exhaust, Signal Too Low (B5254T4; 2004)
- ECM-644A: Camshaft Reset Valve, Faulty Control (B5234T3; B5244T3; 2001)
- ECM-644A: Camshaft Reset Valve, Faulty Position (B5234T3; B5244T3; 2001)
- ECM-644A: Camshaft Reset Valve, Slow Control, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-644A: Camshaft Reset Valve, Slow Control, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-650B: Engine Cooling Fan (FC), Signal Missing (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-650C: Engine Cooling Fan (FC), Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-650D: Engine Cooling Fan (FC), Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-660B: Malfunction Indicator Lamp (Mil), Signal Missing (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-660C: Malfunction Indicator Lamp (Mil), Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-660D: Malfunction Indicator Lamp (Mil), Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
Factory Service Tools
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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.
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