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 MANUALSVOLVO2003V70 2.4 L5-2.4L VIN 61 B5244SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSECM CODES (ENGINE CONTROL MODULE)ECM-220ADIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2003 Volvo V70 2.4 L5-2.4L VIN 61 B5244S
Diagnostic Trouble Code (DTC) Information
2003 Volvo V70 2.4 L5-2.4L VIN 61 B5244SSECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information
Condition
The difference between the rear probe minimum and maximum values is checked approximately 5 minutes after start (if the probe heating is active and at least 1 fuel shut off has been made. It must not exceed 0.5 V. If it is not OK, the rear heated oxygen sensor (HO2S) maximum value exceeds the probe voltage initiation value (0 V) by at least 0.6 V and falls below the probe voltage initiation value (5 V) to the minimum value 0.1 V.
Diagnostic trouble code (DTC) ECM- 220A is stored if the control module registers that these values ranges are not reached after approximately 5 minutes and the accumulated or actual probe heating has reached its value range.
Substitute value
Rear heated oxygen sensor (HO2S) control is disabled.
Possible source
Defective rear heated oxygen sensor (HO2S).
Fault symptom[s]
None.
RENDER: 1.0x
NO RELATED
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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.