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Chrysler
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2003
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Voyager Base, 2.4 B
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes - 2.4L
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Diagnostic Tests
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DTC P0031: O2 Sensor 1/1 Heater Circuit Low Or P0037: O2 Sensor 1/2 Heater Circuit Low
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Possible Causes
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Possible Causes
O2 Heater Element
O2 Heater Control Circuit
O2 Heater Control Shorted To Ground
PCM