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Home >> Suzuki >> 2002 >> Vitara JLX, 2D Utility, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0031 & DTC P0032 >> Condition
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DTC P0031 & DTC P0032: Condition

DTC P0031 is set when Engine Control Module (ECM) detects Heated Oxygen Sensor No. 1 (HO2S-1) heater circuit voltage input is higher than 13.99 volts while HO2S-1 heater is ON. DTC P0032 is set when ECM detects HO2S-1 heater circuit voltage input is lower than 11.72 volts while HO2S-1 heater is ON. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles. Possible causes are:

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