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 MANUALSVOLVO2007XC70REPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL MODULE (ECM) DIAGNOSTIC TROUBLE CODES (XC) - 3 OF 9
2007 Volvo XC70
Engine Control Module (ECM) Diagnostic Trouble Codes (XC) - 3 Of 9
2007 Volvo XC70SECTION Engine Control Module (ECM) Diagnostic Trouble Codes (XC) - 3 Of 9
- ECM-290C: Fuel Pressure. Signal Too High (B5254T2; 2005-2006)
- Diagnostic trouble code (DTC) information ECM-290C
- Signal too high
- ECM-290C: Fuel Pressure. Signal Too High (B5254T2; 2007)
- ECM-290D: Fuel Pressure. Signal Too Low (B5254T2; 2007)
- Diagnostic trouble code (DTC) information ECM-290D
- Signal too low
- ECM-290D: Fuel Pressure. Signal Too Low (B5254T2; 2005-2006)
- Diagnostic trouble code (DTC) information ECM-290D
- Signal too low
- ECM-291B: Fuel Pump Control Module. Signal Missing (B5254T2; 2005-2007)
- ECM-291C: Fuel Pump Control Module. Signal Too High (B5254T2; 2005-2007)
- ECM-291D: Fuel Pump Control Module. Signal Too Low (B5254T2; 2005-2007)
- ECM-2A00: Fuel Temperature Sensor. Faulty Signal (B5254T2; 2006)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Faulty Signal (B5254T2; 2003-2004)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Faulty Signal. Intermittent Fault (B5244T3; 2001-2002)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Faulty Signal. Permanent Fault (B5244T3; 2001-2002)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Missing (B5254T2; 2003-2004)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Missing. Intermittent Fault (B5244T3; 2001-2002)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Missing. Permanent Fault (B5244T3; 2001-2002)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Too High (B5254T2; 2003-2004)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Too High. Intermittent Fault (B5244T3; 2001-2002)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Too High. Permanent Fault (B5244T3; 2001-2002)
- ECM-2A0A: Rear Heated Oxygen Sensor (Ho2S). Signal Too Low (B5254T2; 2003-2004)
- ECM-2A0B: Fuel Temperature Sensor. Signal Missing (B5254T2; 2006)
- ECM-2A0C: Fuel Temperature Sensor. Signal Too High (B5254T2; 2005-2007)
- ECM-2A0D: Fuel Temperature Sensor. Signal Too Low (B5254T2; 2005-2007)
- ECM-2A10: Fuel Temperature Sensor. Signal Too High (B5254T2; 2006-2007)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Faulty Signal (B5244T3; 2002)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Faulty Signal (B5254T2; 2003-2004)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Missing (B5244T3; 2002)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Missing (B5254T2; 2003-2004)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Too High (B5244T3; 2002)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Too High (B5254T2; 2003-2004)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Too High. Intermittent Fault (B5244T3; 2001)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Too High. Permanent Fault (B5244T3; 2001)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Too Low (B5244T3; 2002)
- ECM-2A1A: Rear Heated Oxygen Sensor (Ho2S) Aging Signal Too Low (B5254T2; 2003-2004)
- ECM-2A1B: Fuel Temperature Sensor. Signal Too Low (B5254T2; 2006)
- ECM-2A1C: Fuel Temperature Sensor. Signal Too High (B5254T2; 2006-2007)
- ECM-2A1D: Fuel Temperature Sensor. Signal Too Low (B5254T2; 2006-2007)
- ECM-2A20: Heated Oxygen Sensor (Ho2S) Bank 1, Preheating. Signal Missing (B5244T3; 2002)
- ECM-2A20: Heated Oxygen Sensor (Ho2S) Bank 1, Preheating. Signal Missing (B5254T2; 2003-2004)
- ECM-2A20: Heated Oxygen Sensor (Ho2S) Bank 1, Preheating. Signal Too High (B5244T3; 2002)
- ECM-2A20: Heated Oxygen Sensor (Ho2S) Bank 1, Preheating. Signal Too High (B5254T2; 2003-2004)
- ECM-2A20: Heated Oxygen Sensor (Ho2S) Bank 1, Preheating. Signal Too Low (B5244T3; 2002)
- ECM-2A20: Heated Oxygen Sensor (Ho2S) Bank 1, Preheating. Signal Too Low (B5254T2; 2003-2004)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Faulty Signal (B5244T3; 2002)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Faulty Signal. Intermittent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Faulty Signal. Permanent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Signal Missing. Intermittent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Signal Missing. Permanent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Signal Too High. Intermittent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Signal Too High. Permanent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Signal Too Low. Intermittent Fault (B5244T3; 2001)
- ECM-2A2A: Rear Heated Oxygen Sensor (Ho2S) Preheating. Signal Too Low. Permanent Fault (B5244T3; 2001)
- ECM-2B00: Thermostat. Faulty Signal (B5254T2; 2005-2007)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Faulty Signal Or Signal Missing (B5244T3; 2002)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Faulty Signal Or Signal Missing (B5254T2; 2003-2004)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Signal Too High (B5254T2; 2003-2004)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Signal Too High. Intermittent Fault (B5244T3; 2002)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Signal Too High. Permanent Fault (B5244T3; 2002)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Signal Too Low (B5254T2; 2003-2004)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Signal Too Low. Intermittent Fault (B5244T3; 2002)
- ECM-3000: Camshaft Position (CMP) Sensor, Intake. Signal Too Low. Permanent Fault (B5244T3; 2002)
- ECM-3000: Camshaft Position (CMP) Sensor. Faulty Signal. Intermittent Fault (B5244T3; 2001)
- ECM-3000: Camshaft Position (CMP) Sensor. Faulty Signal. Permanent Fault (B5244T3; 2001)
- ECM-3000: Camshaft Position (CMP) Sensor. Signal Too High. Intermittent Fault (B5244T3; 2001)
- ECM-3000: Camshaft Position (CMP) Sensor. Signal Too High. Permanent Fault (B5244T3; 2001)
- ECM-3000: Camshaft Position (CMP) Sensor. Signal Too Low. Intermittent Fault (B5244T3; 2001)
- ECM-3000: Camshaft Position (CMP) Sensor. Signal Too Low. Permanent Fault (B5244T3; 2001)
- ECM-3000: Engine Control Module (ECM), Internal Fault. Faulty Signal (B5254T2; 2005-2007)
- ECM-3010: Camshaft Position (CMP) Sensor, Exhaust. Faulty Signal Or Signal Missing (B5244T3; 2002)
- ECM-3010: Camshaft Position (CMP) Sensor, Exhaust. Faulty Signal Or Signal Missing (B5254T2; 2003-2004)
- ECM-3010: Camshaft Position (CMP) Sensor, Exhaust. Signal Too High (B5244T3; 2002)
- ECM-3010: Camshaft Position (CMP) Sensor, Exhaust. Signal Too High (B5254T2; 2003-2004)
- ECM-3010: Camshaft Position (CMP) Sensor, Exhaust. Signal Too Low (B5244T3; 2002)
- ECM-3010: Camshaft Position (CMP) Sensor, Exhaust. Signal Too Low (B5254T2; 2003-2004)
- ECM-3010: Engine Control Module (ECM), Internal Fault. Faulty Signal (B5254T2; 2005-2007)
- ECM-3020: Engine Control Module (ECM), Internal Fault. Faulty Signal (B5254T2; 2005-2007)
- ECM-303C: Front Knock Sensor (KS). Signal Too High (B5254T2; 2005-2007)
- ECM-303D: Front Knock Sensor (KS). Signal Too Low (B5254T2; 2005-2007)
- ECM-304C: Rear Knock Sensor (KS). Signal Too High (B5254T2; 2005-2007)
- ECM-304D: Rear Knock Sensor (KS). Signal Too Low (B5254T2; 2005-2007)
- ECM-3100: Engine Speed (Rpm) Sensor. Signal Missing (B5254T2; 2003-2004)
- ECM-3100: Engine Speed (Rpm) Sensor. Signal Missing. Intermittent Fault (B5244T3; 2001)
- ECM-3100: Engine Speed (Rpm) Sensor. Signal Missing. Intermittent Fault (B5244T3; 2002)
- ECM-3100: Engine Speed (Rpm) Sensor. Signal Missing. Permanent Fault (B5244T3; 2002)
- ECM-3100: Engine Speed (Rpm) Sensor. Signal Missing. Permanent Fault (B5244T3; 2001)
- ECM-3100: Misfire, At Least One Cylinder. Start Up (B5254T2; 2005-2007)
- ECM-310C: Misfire, At Least One Cylinder. Catalytic Converter Damage (B5254T2; 2005-2007)
- ECM-310D: Misfire, At Least One Cylinder. Affects Emissions (B5254T2; 2005-2007)
- ECM-3110: Misfire Cylinder 1. Start Up (B5254T2; 2005-2007)
- ECM-311C: Misfire Cylinder 1. Catalytic Converter Damage (B5254T2; 2005-2007)
- ECM-311D: Misfire Cylinder 1. Emissions Impact (B5254T2; 2005-2007)
- ECM-3120: Misfire Cylinder 2. Start Up (B5254T2; 2005-2007)
- ECM-312C: Misfire Cylinder 2. Catalytic Converter Damage (B5254T2; 2005-2007)
- ECM-312D: Misfire Cylinder 2. Emissions Impact (B5254T2; 2005-2007)
- ECM-3130: Misfire Cylinder 3. Start Up (B5254T2; 2005-2007)
- ECM-313C: Misfire Cylinder 3. Catalytic Converter Damage (B5254T2; 2005-2007)
- ECM-313D: Misfire Cylinder 3. Emissions Impact (B5254T2; 2005-2007)
- ECM-3140: Misfire Cylinder 4. Start Up (B5254T2; 2005-2007)
- ECM-314C: Misfire Cylinder 4. Catalytic Converter Damage (B5254T2; 2005-2007)
- ECM-314D: Misfire Cylinder 4. Emissions Impact (B5254T2; 2005-2007)
- ECM-3150: Misfire Cylinder 5. Start Up (B5254T2; 2005-2007)
- ECM-315C: Misfire Cylinder 5. Catalytic Converter Damage (B5254T2; 2005-2007)
- ECM-315D: Misfire Cylinder 5. Emissions Impact (B5254T2; 2005-2007)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Missing. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Missing. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Missing. Permanent Fault (B5244T3; 2001-2002)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Missing. Permanent Fault (B5254T2; 2003-2004)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too High. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too High. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too High. Permanent Fault (B5244T3; 2001-2002)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too High. Permanent Fault (B5254T2; 2003-2004)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too Low. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too Low. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too Low. Permanent Fault (B5244T3; 2001-2002)
- ECM-3300: Ignition Coil Cylinder 1, Signal. Signal Too Low. Permanent Fault (B5254T2; 2003-2004)
- ECM-330B: Engine Speed (Rpm) Sensor. Signal Missing (B5254T2; 2005-2007)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Missing. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Missing. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Missing. Permanent Fault (B5244T3; 2001-2002)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Missing. Permanent Fault (B5254T2; 2003-2004)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too High. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too High. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too High. Permanent Fault (B5244T3; 2001-2002)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too High. Permanent Fault (B5254T2; 2003-2004)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too Low. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too Low. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too Low. Permanent Fault (B5244T3; 2001-2002)
- ECM-3310: Ignition Coil Cylinder 2, Signal. Signal Too Low. Permanent Fault (B5254T2; 2003-2004)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Missing. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Missing. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Missing. Permanent Fault (B5244T3; 2001-2002)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Missing. Permanent Fault (B5254T2; 2003-2004)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too High. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too High. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too High. Permanent Fault (B5244T3; 2001-2002)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too High. Permanent Fault (B5254T2; 2003-2004)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too Low. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too Low. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too Low. Permanent Fault (B5244T3; 2001-2002)
- ECM-3320: Ignition Coil Cylinder 3, Signal. Signal Too Low. Permanent Fault (B5254T2; 2003-2004)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Missing. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Missing. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Missing. Permanent Fault (B5244T3; 2001-2002)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Missing. Permanent Fault (B5254T2; 2003-2004)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too High. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too High. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too High. Permanent Fault (B5244T3; 2001-2002)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too High. Permanent Fault (B5254T2; 2003-2004)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too Low. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too Low. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too Low. Permanent Fault (B5244T3; 2001-2002)
- ECM-3330: Ignition Coil Cylinder 4, Signal. Signal Too Low. Permanent Fault (B5254T2; 2003-2004)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Missing. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Missing. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Missing. Permanent Fault (B5244T3; 2001-2002)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Missing. Permanent Fault (B5254T2; 2003-2004)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too High. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too High. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too High. Permanent Fault (B5244T3; 2001-2002)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too High. Permanent Fault (B5254T2; 2003-2004)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too Low. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too Low. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too Low. Permanent Fault (B5244T3; 2001-2002)
- ECM-3340: Ignition Coil Cylinder 5, Signal. Signal Too Low. Permanent Fault (B5254T2; 2003-2004)
- ECM-3400: Camshaft Position (CMP) Sensor, Intake. Faulty Signal (B5254T2; 2005-2007)
- ECM-3400: Knock Sensor (KS), Test Pulse. Signal Too High/Signal Too Low. Intermittent Fault (B5244T3; 2001-2002)
- ECM-3400: Knock Sensor (KS), Test Pulse. Signal Too High/Signal Too Low. Intermittent Fault (B5254T2; 2003-2004)
- ECM-3400: Knock Sensor (KS), Test Pulse. Signal Too High/Signal Too Low. Permanent Fault (B5244T3; 2001-2002)
- ECM-3400: Knock Sensor (KS), Test Pulse. Signal Too High/Signal Too Low. Permanent Fault (B5254T2; 2003-2004)
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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.