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Home >> Suzuki >> 2012 >> SX4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Engine General Information And Diagnosis) >> Diagnostic Information and Procedures >> DTC P0031/P0032: HO2S Heater Control Circuit Low (Sensor 1)/HO2S Heater Control Circuit High (Sensor 1) >> DTC Detecting Condition and Trouble Area
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DTC Detecting Condition and Trouble Area

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC INFORMATION AND PROCEDURES REFERENCE CHART

DTC detecting condition Trouble area
P0031: HO2S Heater Control Circuit Low (Sensor 1) 
Output voltage of A/F sensor heater drive circuit is lower than 6 V even if control duty ratio of A/F sensor heater is lower than 90%.
(2 D/C detection logic)
  • A/F sensor heater and/or its circuit
  • ECM
P0032: HO2S Heater Control Circuit High (Sensor 1) 
Output voltage of A/F sensor heater drive circuit is higher than 6 V even if control duty ratio of A/F sensor heater is higher than 10%.
(2 D/C detection logic)