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Home >> Nissan-Datsun >> 2017 >> Pathfinder SL, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0420, P0430: Three Way Catalyst Function >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P0420 TW CATALYST SYS-B1
(Catalyst system efficiency below threshold bank 1)
Diagnosis condition -
Signal (terminal) -
Threshold
  • Three way catalyst (manifold) does not operate properly
  • Three way catalyst (manifold) does not have enough oxygen storage capacity
Diagnosis delay time -
P0430 TW CATALYST SYS-B2
(Catalyst system efficiency below threshold bank 2)
Diagnosis condition -
Signal (terminal) -
Threshold
  • Three way catalyst (manifold) does not operate properly
  • Three way catalyst (manifold) does not have enough oxygen storage capacity
Diagnosis delay time -