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

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Signal (terminal)

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Threshold

• Three way catalyst (manifold) does not operate properly
• Three way catalyst (manifold) does not have enough oxygen storage capacity

Diagnosis delay time

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