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Home >> Chrysler >> 2003 >> PT Cruiser Touring, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0031: O2 Sensor 1/1 Heater Circuit Low & P0037: O2 Sensor 1/2 Heater Circuit Low >> Possible Causes
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Possible Causes

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