| Properties of the self-diagnosis |
| The engine control unit -J382- is equipped with a fault memory. The fault memory is designed as a permanent memory. |
| If malfunctions occur in the monitored sensors or components, they are stored in the fault memory with indication of the fault type. |
| Faults that only occur temporarily (sporadically) are output with the suffix “sporadically occurred fault”. On the display these faults are indicated by the suffix “/SP”. Possible causes of sporadic faults are e.g. a loose contact or a momentary line interruption. If a sporadic fault no longer occurs after 40 engine starts, it is erased from the fault memory. |
| The stored faults can be read out with vehicle system tester -V.A.G 1552- or fault read-out scan tool - V.A.G 1551- → Chapter. |
| After the fault(s) has(have) been removed the fault memory must be erased → Chapter. |
Note | t
| The following description only relates to the vehicle system tester -V.A.G 1552- using the program card 3.0 or higher. |
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| The use of the fault reader -V.A.G 1551- with integrated printer is similar. A minor deviation on the display read-out is possible. |
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