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Home >> Suzuki >> 2005 >> XL-7 EX, 4WD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> H25 Engine >> Diagnostic Information and Procedures >> DTC P0420 / P0430: Catalyst System (Bank-1 / -2) Efficiency below Threshold >> DTC Detecting Condition and Trouble Area
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DTC Detecting Condition and Trouble Area

DTC DETECTING CONDITION AND TROUBLE AREA

DTC detecting condition Trouble area
Output waveform of HO2S (S-2) becomes similar to that of HO2S (S-1).
(2 driving cycle detection logic)
  • WU-TWC converter
  • Exhaust system
  • HO2S (SENSOR 2)
  • HO2S (SENSOR 2) circuit
  • ECM(PCM)
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