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 R, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Control Module (ECM) Diagnostic Trouble Codes (DTC) - 1 Of 14
- ECM-914C: Electronic Throttle Module (ETM), Faulty Signal (B5244S; 2003-2007)
- ECM-914C: Electronic Throttle Module (ETM), Faulty Signal (B5244S6; 2003-2006)
- ECM-914C: Electronic Throttle Module (ETM), Signal Too High (B5244S; 2003-2007)
- ECM-914C: Electronic Throttle Module (ETM), Signal Too High (B5244S6; 2003-2006)
- ECM-914C: Electronic Throttle Module (ETM), Signal Too Low (B5244S; 2003-2007)
- ECM-914C: Electronic Throttle Module (ETM), Signal Too Low (B5244S6; 2003-2006)
- ECM-91AC: Electronic Throttle Module (ETM), Actuator Current Too High (B5244S; 2003-2007)
- ECM-91AC: Electronic Throttle Module (ETM), Actuator Current Too High (B5244S6; 2003-2006)
- ECM-91AC: Electronic Throttle Module (ETM), Faulty Signal (B5244S; 2003-2007)
- ECM-91AC: Electronic Throttle Module (ETM), Faulty Signal (B5244S6; 2003-2006)
- ECM-91AC: Electronic Throttle Module (ETM), Throttle Jammed (B5244S; 2003-2007)
- ECM-91AC: Electronic Throttle Module (ETM), Throttle Jammed (B5244S6; 2003-2006)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Intermittent Fault (B5234T3; 2001-2004)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Intermittent Fault (B5244T3; 2001-2003)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Intermittent Fault (B5254T2; 2003-2004)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Intermittent Fault (B5254T4; 2004)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Permanent Fault (B5234T3; 2001-2004)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Permanent Fault (B5244T3; 2001-2003)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Permanent Fault (B5254T2; 2003-2004)
- ECM-1000: Control Module, Signal Too High/Signal Too Low, Permanent Fault (B5254T4; 2004)
- ECM-1000: Engine Control Module (ECM), Internal Fault, Signal Too High (B5244S; 2001-2002)
- ECM-1000: Engine Control Module (ECM), Internal Fault, Signal Too Low (B5244S; 2001-2002)
- ECM-1000: Engine Control Module (ECM), Internal Fault, Signal Too Low, Intermittent Fault (B5244S; 2001-2002)
- ECM-1000: Engine Control Module (ECM), Faulty Signal (B5244S; 2003-2007)
- ECM-1000: Engine Control Module (ECM), Faulty Signal (B5244S6; 2003-2006)
- ECM-100A: Engine Control Module (ECM), Internal Fault. Faulty Signal (B5244S; 2001-2002)
- ECM-100A: Engine Control Module (ECM), Faulty Signal (B5244S; 2003-2007)
- ECM-100A: Engine Control Module (ECM), Faulty Signal (B5244S6; 2003-2006)
- ECM-1100: Outside Temperature Sensor, Faulty Signal (B5234T3; 2002-2004)
- ECM-1100: Outside Temperature Sensor, Faulty Signal (B5244T3; 2002-2003)
- ECM-1100: Outside Temperature Sensor, Faulty Signal (B5254T2; 2003-2004)
- ECM-1100: Outside Temperature Sensor, Faulty Signal (B5254T4; 2004)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5234T3; 2002-2004)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5244S; 2001-2002)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5244S; 2003-2007)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5244S6; 2003-2006)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5244T3; 2002-2003)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5254T2; 2003-2004)
- ECM-1100: Outside Temperature Sensor, Signal Too High (B5254T4; 2004)
- ECM-1100: Outside Temperature Sensor, Signal Too High, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-1100: Outside Temperature Sensor, Signal Too High, Intermittent Fault (B5244S; 2001-2002)
- ECM-1100: Outside Temperature Sensor, Signal Too High, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5234T3; 2002-2004)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5244S; 2001-2002)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5244S; 2003-2007)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5244S6; 2003-2006)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5244T3; 2002-2003)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5254T2; 2003-2004)
- ECM-1100: Outside Temperature Sensor, Signal Too Low (B5254T4; 2004)
- ECM-1100: Outside Temperature Sensor, Signal Too Low Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-1100: Outside Temperature Sensor, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-1100: Outside Temperature Sensor, Signal Too Low, Intermittent Fault (B5244S; 2001-2002)
- ECM-110A: Outside Temperature Sensor, Faulty Signal (B5244S; 2001-2004)
- ECM-110A: Outside Temperature Sensor, Faulty Signal (B5244S; 2005-2007)
- ECM-110A: Outside Temperature Sensor, Faulty Signal (B5244S6; 2003-2004)
- ECM-110A: Outside Temperature Sensor, Faulty Signal (B5244S6; 2005-2006)
- ECM-112C: Atmospheric Pressure Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-112D: Atmospheric Pressure Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-1130: Atmospheric Pressure Sensor, Faulty Signal (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-113B: Atmospheric Pressure Sensor, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-113C: Atmospheric Pressure Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-113D: Atmospheric Pressure Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-1200: Signal Too High (B5234T3; B5254T2; 2003-2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244S; 2001-2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244S; 2005-2007)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244S6; 2003-2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244S6; 2005-2006)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244T3; 2003)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High (B5254T4; 2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High, Intermittent Fault (B5234T3; B5244T3; 2001-2002)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High, Intermittent Fault (B5244S; 2001-2002)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too High, Permanent Fault (B5234T3; B5244T3; 2001-2002)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5234T3; B5254T2; 2003-2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244S; 2001-2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244S; 2005-2007)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244S6; 2003-2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244S6; 2005-2006)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244T3; 2003)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5254T4; 2004)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2001-2002)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low, Intermittent Fault (B5244S; 2001-2002)
- ECM-1200: Intake Air Temperature (IAT) Sensor, Signal Too Low, Permanent Fault (B5234T3; B5244T3; 2001-2002)
- ECM-1200: Intake Air Temperature (IAT), Faulty Signal (B5234T3; B5254T2; 2003-2004)
- ECM-1200: Intake Air Temperature (IAT), Faulty Signal (B5244T3; 2003)
- ECM-1200: Intake Air Temperature (IAT), Faulty Signal (B5254T4; 2004)
- ECM-120A: Intake Air Temperature (IAT) Sensor Inlet, Faulty Signal (B5244S; 2001-2004)
- ECM-120A: Intake Air Temperature (IAT) Sensor Inlet, Faulty Signal (B5244S6; 2003-2004)
- ECM-120A: Intake Air Temperature (IAT) Sensor, Faulty Signal (B5244S; 2005-2007)
- ECM-120A: Intake Air Temperature (IAT) Sensor, Faulty Signal (B5244S6; 2005-2006)
- ECM-120C: Mass Air Flow, Signal Too High (B5244T5; 2005-2007)
- ECM-120C: Mass Air Flow, Signal Too High (B5254T2; 2005-2007)
- ECM-120C: Mass Air Flow, Signal Too High (B5254T4; 2005-2007)
- ECM-120D: Intake Air Temperature (IAT) Sensor, Faulty Signal (B5244S; 2005-2007)
- ECM-120D: Intake Air Temperature (IAT) Sensor, Faulty Signal (B5244S6; 2005-2006)
- ECM-120D: Mass Air Flow, Signal Too Low (B5244T5; 2005-2007)
- ECM-120D: Mass Air Flow, Signal Too Low (B5254T2; 2005-2007)
- ECM-120D: Mass Air Flow, Signal Too Low (B5254T4; 2005-2007)
- ECM-1210: Mass Air Flow (MAF) Sensor, Flow Too High (B5244T5; 2005-2007)
- ECM-1210: Mass Air Flow (MAF) Sensor, Flow Too High (B5254T2; 2005-2007)
- ECM-1210: Mass Air Flow (MAF) Sensor, Flow Too High (B5254T4; 2005-2007)
- ECM-121B: Mass Air Flow (MAF) Sensor, Flow Too Low (B5244T5; 2005-2007)
- ECM-121B: Mass Air Flow (MAF) Sensor, Flow Too Low (B5254T2; 2005-2007)
- ECM-121B: Mass Air Flow (MAF) Sensor, Flow Too Low (B5254T4; 2005-2007)
- ECM-121C: Mass Air Flow (MAF) Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-121D: Mass Air Flow (MAF) Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-125C: Boost Pressure Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-125D: Boost Pressure Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-1260: Boost Pressure Sensor, Faulty Signal (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-126B: Boost Pressure Sensor, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-126C: Boost Pressure Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-126D: Boost Pressure Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Intermittent Fault (B5234T3; 2002-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Intermittent Fault (B5244T3; 2002-2003)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Intermittent Fault (B5254T2; 2003-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Intermittent Fault (B5254T4; 2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Permanent Fault (B5234T3; 2002-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Permanent Fault (B5244T3; 2002-2003)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Permanent Fault (B5254T2; 2003-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too High, Permanent Fault (B5254T4; 2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Intermittent Fault (B5234T3; 2002-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Intermittent Fault (B5244T3; 2002-2003)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Intermittent Fault (B5254T2; 2003-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Intermittent Fault (B5254T4; 2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Permanent Fault (B5234T3; 2002-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Permanent Fault (B5244T3; 2002-2003)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Permanent Fault (B5254T2; 2003-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Flow Too Low, Permanent Fault (B5254T4; 2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too High (B5244S; 2001-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too High (B5244S; B5244S6; 2005)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too High (B5244S6; 2003-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too High, Intermittent Fault (B5244S; 2001-2002)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too Low (B5244S; 2001-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too Low (B5244S; 2005-2007)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too Low (B5244S6; 2003-2004)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too Low (B5244S6; 2005-2006)
- ECM-1300: Mass Air Flow (MAF) Sensor, Signal Too Low, Intermittent Fault (B5244S; 2001-2002)
- ECM-130A: Air Flow, Faulty Flow (B5234T3; B5244T3; 2001)
- ECM-130A: Air Flow, Faulty Flow (B5244S; 2001-2002)
- ECM-130A: Air Leakage Intake, Faulty Signal (B5234T3; 2002-2004)
- ECM-130A: Air Leakage Intake, Faulty Signal (B5244T3; 2002-2003)
- ECM-130A: Intake Air Leakage, Faulty Signal (B5254T2; 2003-2004)
- ECM-130A: Intake Air Leakage, Faulty Signal (B5254T4; 2004)
- ECM-130A: Mass Air Flow (MAF) Sensor, Faulty Signal (B5244S; 2003-2007)
- ECM-130A: Mass Air Flow (MAF) Sensor, Faulty Signal (B5244S6; 2003-2006)
- ECM-131C: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-131D: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-1320: Intake Air Temperature (IAT) Sensor, Faulty Signal (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-132C: Intake Air Temperature (IAT) Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-132D: Intake Air Temperature (IAT) Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-2007)
- ECM-133C: Intake Air Temperature (IAT) Sensor Inlet, Signal Too High (B5244T5; B5254T2; B5254T4; 2006-2007)
- ECM-133D: Intake Air Temperature (IAT) Sensor Inlet, Signal Too Low (B5244T5; B5254T2; B5254T4; 2006-2007)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too High (B5244S; 2005-2007)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too High (B5244S; 2001-2004)
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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