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Home >> Volvo >> 2002 >> V70 XC >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Ignition And Control Systems - Design And Function (XC) >> Diagnostic Functions Me 7 (B5244T3; 2001) >> Probe diagnostics >> Rear heated oxygen sensor (HO2S), electronic check
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Rear heated oxygen sensor (HO2S), electronic check

Diagnostic trouble code (DTC) ECM-2A0A/2B0A is stored if there is a fault in the rear heated oxygen sensors (HO2S) or its wiring causing the signal to deviate from its permitted value.

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