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Suzuki
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2003
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XL-7 Base, RWD
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Repair and Diagnosis
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Engine Performance
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTCS P0031 Or P0032: Ho2S Bank 1, Sensor 1 - Heater Circuit Low/High
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Possible Causes
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Possible Causes
Possible causes are:
Bank 1 HO2S No. 1 heater circuit malfunction.
Bank 1 HO2S No. 1 heater malfunction.
ECM malfunction.
HO2S heater relay.