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) - 2 Of 14
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too High (B5244S6; 2005-06)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too High (B5244S6; 2003-04)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too High, Intermittent Fault (B5244S; 2001-02)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too Low (B5244S; 2001-04)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too Low (B5244S; 2005-07)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too Low (B5244S6; 2003-04)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too Low (B5244S6; 2005-06)
- ECM-1400: Manifold Absolute Pressure (Map) Sensor, Signal Too Low, Intermittent Fault (B5244S; 2001-02)
- ECM-140A: Manifold Absolute Pressure (Map) Sensor, Faulty Signal (B5244S; 2001-02)
- ECM-140A: Manifold Absolute Pressure (Map) Sensor, Faulty Signal (B5244S; 2003-07)
- ECM-140A: Manifold Absolute Pressure (Map) Sensor, Faulty Signal (B5244S6; 2003-06)
- ECM-140C: Outside Temperature Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-06)
- ECM-140D: Outside Temperature Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-1410: Outside Temperature Sensor, Faulty Signal (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-141B: Outside Temperature Sensor, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-142C: Outside Temperature Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2006-07)
- ECM-142D: Ambient Temperature Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2006-07)
- ECM-143C: Outside Temperature Sensor, Signal Too High (B5244T5; B5254T2; B5254T4; 2006-07)
- ECM-143D: Outside Temperature Sensor, Signal Too Low (B5244T5; B5254T2; B5254T4; 2006-07)
- ECM-150A: Mass Air Flow (MAF) Sensor, Lower Limit (B5244S; 2001-02)
- ECM-150A: Mass Air Flow (MAF) Sensor, Upper Limit (B5244S; 2001-02)
- ECM-1600: Boost Pressure Sensor, Faulty Signal (B5234T3; B5244T3; 2002)
- ECM-1600: Boost Pressure Sensor, Faulty Signal (B5234T3; B5254T2; 2003-04)
- ECM-1600: Boost Pressure Sensor, Faulty Signal (B5244T3; 2003)
- ECM-1600: Boost Pressure Sensor, Faulty Signal (B5254T4; 2004)
- ECM-1600: Boost Pressure Sensor, Signal Too High (B5234T3; B5254T2; 2003-04)
- ECM-1600: Boost Pressure Sensor, Signal Too High (B5244T3; 2003)
- ECM-1600: Boost Pressure Sensor, Signal Too High (B5254T4; 2004)
- ECM-1600: Boost Pressure Sensor, Signal Too High, Intermittent Fault (B5234T3; B5244T3; 2002)
- ECM-1600: Boost Pressure Sensor, Signal Too High, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-1600: Boost Pressure Sensor, Signal Too High, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-1600: Boost Pressure Sensor, Signal Too High, Permanent Fault (B5234T3; B5244T3; 2002)
- ECM-1600: Boost Pressure Sensor, Signal Too Low (B5234T3; B5254T2; 2003-04)
- ECM-1600: Boost Pressure Sensor, Signal Too Low (B5244T3; 2003)
- ECM-1600: Boost Pressure Sensor, Signal Too Low (B5254T4; 2004)
- ECM-1600: Boost Pressure Sensor, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2002)
- ECM-1600: Boost Pressure Sensor, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2001)
- ECM-1600: Boost Pressure Sensor, Signal Too Low, Permanent Fault (B5234T3; B5244T3; 2001)
- ECM-1600: Boost Pressure Sensor, Signal Too Low, Permanent Fault (B5234T3; B5244T3; 2002)
- ECM-160A: Electronic Throttle Module (ETM), Faulty Signal (B5244S; B5244S6; 2003-04)
- ECM-160A: Electronic Throttle Unit, Faulty Signal (B5244S; 2005-07)
- ECM-160A: Electronic Throttle Unit, Faulty Signal (B5244S6; 2005-06)
- ECM-170F: Atmospheric Pressure Sensor/Boost Pressure Sensor Range Check, Faulty Signal (B5234T3; B5254T2; 2003-04)
- ECM-170F: Atmospheric Pressure Sensor / Boost Pressure Sensor Range Check, Faulty Signal (B5244T3; 2003)
- ECM-170F: Atmospheric Pressure Sensor / Boost Pressure Sensor Range Check, Faulty Signal (B5254T4; 2004)
- ECM-170F: Atmospheric Pressure Sensor/Boost Pressure Sensor Range Check, Faulty Signal, Intermittent Fault (B5234T3; B5244T3; 2001-02)
- ECM-170F: Atmospheric Pressure Sensor/Boost Pressure Sensor Range Check, Faulty Signal, Permanent Fault (B5234T3; B5244T3; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5234T3; B5254T2; 2003-04)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244T3; 2003)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5254T4; 2004)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Faulty Signal, Intermittent Fault (B5234T3; B5244T3; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Faulty Signal, Permanent Fault (B5234T3; B5244T3; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High (B5234T3; B5254T2; 2003-04)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High (B5244S; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High (B5244S; 2003-07)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High (B5244S6; 2003-06)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High (B5244T3; 2003)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High (B5254T4; 2004)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High, Intermittent Fault (B5234T3; B5244T3; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High, Intermittent Fault (B5244S; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too High, Permanent Fault (B5234T3; B5244T3; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low (B5234T3; B5254T2; 2003-04)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low (B5244S; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low (B5244S; 2003-07)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low (B5244S6; 2003-06)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low (B5244T3; 2003)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low (B5254T4; 2004)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low, Intermittent Fault (B5234T3; B5244T3; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low, Intermittent Fault (B5244S; 2001-02)
- ECM-2000: Engine Coolant Temperature (ECT) Sensor, Signal Too Low, Permanent Fault (B5234T3; B5244T3; 2001-02)
- ECM-200A: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S; 2001-04)
- ECM-200A: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S; 2005-07)
- ECM-200A: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S6; 2003-04)
- ECM-200A: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S6; 2005-06)
- ECM-200B: Injector CYL 1, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-200C: Injector CYL 1, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-200D: Injector CYL 1, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-200F: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S; 2005-07)
- ECM-200F: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S; 2001-04)
- ECM-200F: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S6; 2005-06)
- ECM-200F: Engine Coolant Temperature (ECT) Sensor, Faulty Signal (B5244S6; 2003-04)
- ECM-201A: Thermostat, Faulty Signal (B5234T3; 2001-04)
- ECM-201A: Thermostat, Faulty Signal (B5244S; 2001-07)
- ECM-201A: Thermostat, Faulty Signal (B5244S6; 2003-06)
- ECM-201A: Thermostat, Faulty Signal (B5244T3; 2001-03)
- ECM-201A: Thermostat, Faulty Signal (B5254T2; 2003-04)
- ECM-201A: Thermostat, Faulty Signal (B5254T4; 2004)
- ECM-201B: Injector CYL 2, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-201C: Injector CYL 2, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-201D: Injector CYL 2, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-202B: Injector CYL 3, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-202C: Injector CYL 3, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-202D: Injector CYL 3, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-203B: Injector CYL 4, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-203C: Injector CYL 4, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-203D: Injector CYL 4, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-204B: Injector CYL 5, Signal Missing (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-204C: Injector CYL 5, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-204D: Injector CYL 5, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-07)
- ECM-2100: Front Heated Oxygen Sensor (Ho2S), Current Too High (B5244S; 2001-04)
- ECM-2100: Front Heated Oxygen Sensor (Ho2S), Current Too High (B5244S6; 2003-04)
- ECM-2100: Front Heated Oxygen Sensor (Ho2S), Current Too High, Intermittent Fault (B5244S; 2001-02)
- ECM-2100: Front Heated Oxygen Sensor (Ho2S), Current Too Low (B5244S; 2001-04)
- ECM-2100: Front Heated Oxygen Sensor (Ho2S), Current Too Low (B5244S6; 2003-04)
- ECM-2100: Front Heated Oxygen Sensor (Ho2S), Current Too Low, Intermittent Fault (B5244S; 2001-02)
- ECM-2100: Fuel Pressure Sensor, Signal Too High (B5254T2; B5254T4; 2004)
- ECM-2100: Fuel Pressure Sensor, Signal Too Low (B5254T2; B5254T4; 2004)
- ECM-210A: Front Heated Oxygen Sensor (Ho2S), Faulty Signal (B5244S; 2001-02)
- ECM-210A: Front Heated Oxygen Sensor (Ho2S), Faulty Signal (B5244S; 2003-07)
- ECM-210A: Front Heated Oxygen Sensor (Ho2S), Faulty Signal (B5244S6; 2003-06)
- ECM-210C: Long-Term Fuel Trim, Bank 1, Signal Too High (B5244T5; B5254T2; B5254T4; 2005-06)
- ECM-210D: Long-Term Fuel Trim, Bank 1, Signal Too Low (B5244T5; B5254T2; B5254T4; 2005-06)
- ECM-210E: Front Heated Oxygen Sensor (Ho2S), Faulty Signal (B5244S; 2001-02)
- ECM-210F: Front Heated Oxygen Sensor (Ho2S), Faulty Signal (B5244S; 2001-07)
- ECM-210F: Front Heated Oxygen Sensor (Ho2S), Faulty Signal (B5244S6; 2003-06)
- ECM-2110: Front Heated Oxygen Sensor (Ho2S), Heating, Signal Too High (B5244S; 2001-07)
- ECM-2110FRONT: Heated Oxygen Sensor (Ho2S), Heating, Signal Too High (B5244S6; 2003-06)
- ECM-2110: Front Heated Oxygen Sensor (Ho2S), Heating, Signal Too Low (B5244S; 2001-02)
- ECM-2110: Front Heated Oxygen Sensor (Ho2S), Heating, Signal Too Low (B5244S; 2003-07)
- ECM-2110: Front Heated Oxygen Sensor (Ho2S), Heating, Signal Too Low (B5244S6; 2003-06)
- ECM-211A: Fuel Pressure, Faulty Signal (B5254T2; B5254T4; 2004)
- ECM-211A: Fuel Pressure, Signal Missing (B5254T2; 2004)
- ECM-211A: Fuel Pressure, Signal Missing (B5254T4; 2004)
- ECM-211A: Fuel Pressure, Signal Too High (B5254T2; B5254T4; 2004)
- ECM-211A: Fuel Pressure, Signal Too Low (B5254T2; B5254T4; 2004)
- ECM-2120: Front Heated Oxygen Sensor (Ho2S), Control Element, Signal Too High (B5244S; 2001-07)
- ECM-2120: Front Heated Oxygen Sensor (Ho2S), Control Element, Signal Too High (B5244S6; 2003-06)
- ECM-2120: Front Heated Oxygen Sensor (Ho2S), Control Element, Signal Too Low (B5244S; 2001-07)
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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