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Home >> Suzuki >> 2003 >> Aerio S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P2231: Heated Oxygen Sensor No. 1 - Signal Circuit Shorted To Heater Circuit >> Condition
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DTC P2231: Heated Oxygen Sensor No. 1 - Signal Circuit Shorted To Heater Circuit: Condition

DTC is set when Engine Control Module (ECM) detects Heated Oxygen Sensor No. 1 (HO2S-1) output voltage is more than specified, and for more than specified time, even after starting engine. Possible causes are:

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