Fault handling III, other emission-related components and function
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Fault handling III, other emission-related components and function
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A diagnostic trouble code is generated when the fault criteria have been fulfilled and any dependents are OK.
For the diagnostic trouble code to be cleared without any further measures being taken requires 1 driving cycle without the fault reoccurring. The CHECK ENGINE lamp goes on if the fault occurs during the next driving cycle.
For the CHECK ENGINE lamp to go out without any further measures being taken requires 3 consecutive driving cycles without the fault reoccurring.
For the diagnostic trouble code to be cleared requires a further 40 fault-free warming-up cycles.
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1.
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Fault criteria fulfilled
Dependents are OK
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2.
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Diagnostic trouble code generated
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3.
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Fault does not occur during 40 warming-up cycles
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4.
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Same fault occurs during next driving cycle
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5.
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Diagnostic trouble code cleared
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6.
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CHECK ENGINE lamp goes on
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7.
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Fault does not occur during 40 warming-up cycles
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8.
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Fault does not occur during 3 consecutive driving cycles
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10.
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CHECK ENGINE lamp goes out
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