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Fault handling, (III) other emission-relatedcomponents and functions

Fault handling, (III) other emission-related components and functions

A diagnostic trouble code is generated when the fault criteria are satisfied.

For the diagnostic trouble code to be cleared without further action, 40 faultless warm- up cycles must be completed.

The CHECK ENGINE lamp (MIL) will light up if the fault recurs in the next driving cycle.

For the CHECK ENGINE lamp (MIL) to go out by itself, 3 consecutive driving cycles must be completed without the fault recurring.

For the diagnostic trouble code to be cleared, 40 faultless warm-up cycles must also be completed.


1. Fault criteria fulfilled


2. Fault code is set.

3. Same fault occurs in next driving cycle

4. CHECK-ENGINE light on

5. Fault does not occur in 3 consecutive driving cycles.

6. CHECK-ENGINE light off

7. and

8. Fault does not occur in 40 warm-up cycles

9. Fault code erased

10. Fault does not occur in 40 warm-up cycles