Plötzliches ausbrechen

[galaxy7]

Habe jetzt den ganzen Thread durchgelesen, um zu erfahren, ob das Problem auch bei meiner 2010 GS auftreten könnte. Leider scheint das Ursache-Wirkungs-Prinzip recht vielschichtig zu sein.

Habe dann im US-Forum recherchiert und diese Ursachen- und Recall-Hinweise gefunden, die von GM für die Z06 wohl nicht eindeutig als security recall eingestuft wurde.

https://www.corvetteforum.com/forums/c6-...ecall.html

https://www.corvetteforum.com/forums/c6-...fixed.html

https://money.cnn.com/2010/05/03/autos/c...2010050316

Danach scheinen eher elektrische Kontaktprobleme bzw. defekte Lenkwinkel-Sensoren als die TPMS-Sensoren ursächlich zu sein.

Ziemlich beunruhigend finde ich auch die Einschätzung am Ende des 1. Thread, falls diese tatsächlich zutreffend ist (Zitat siehe unten)

Weiß jemand evtl , ob das kritische Regelverhalten bei neueren C6 ab MY 2010 entschärft wurde? (Stichwort: Bosch-ABS)

Gruß Armin

Originally Posted by Bill Dearborn
There is a lot of confusion on the sequence of events when Active Handling activates when it shouldn't. There are three things we do know.

1.) When the Service Message is displayed the EBCM has already turned off Active Handling and as long as that message is displayed Active Handling is not functional.

2.) When the message is not displayed Active Handling is functional. Even if you turn it off with the push button it is still functioning in a suspended state just waiting for you to push the switch or for the car to override your selection due to a tire pressure issue.

3.) The EBCM resets with each ignition cycle so intermittent failures and the messages they cause will disappear each time you start the engine. If you have a hard failure the EBCM will display a message as soon as the engine starts or as soon as the internal self test is completed which occurs before the car gets to 10 mph.

There is nothing to say your problem is a safety related issue. The steering sensor can go bad and when the EBCM sees the wrong data from the sensor it turns active handling off.

The safety issue probably comes when the sensor or connector is close to failing the internal test and the EBCM sees spurious signals which although incorrect are not of range and thus it generates an active handling intervention when it shouldn't happen.

On some cars as the intervention occurs the EBCM detects an issue thus throwing a code that turns off Active Handling and displays the Service Message. What the driver experiences is a sudden pull on the steering, which is released at some point followed by the Service Active Handling message. This can occur quite fast and I suspect that since the driver is looking down the road and not at the DIC when the intervention occurs they think the message caused the intervention when it is the other way around. On other cars there will be no Service Message just the pulling of the steering wheel until the marginal condition disappears. I have a couple of nice videos showing that happening to my car on an autocross course. The in car video shows the steering wheel being yanked from my hands and then turning back and forth while the outside video shows what was happening with the car. I also had a passenger in the car who witnessed the whole thing. I had turned Active Handling off and at no time did the DIC show a Service Message. By the way my car has the clip in the connector and the connector isn't loose.

It is only when the DIC has no message there is a potential safety issue. While the Service Message is being displayed you are not in danger as the system will not reset until the next ignition cycle. If you have a solid Service Message when you start the car you don't have a safety issue.