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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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Old 04-16-2017, 11:48 AM
UT4VIDA UT4VIDA is offline
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Mein Auto: 750i
Yet another light trifecta thread--long story and question

2007 750i
Got the dynamic drive warning and light a few months ago. Chime at start up and signals don't turn off after turns. Took everything apart and cleaned it all up per previous threads. Dynamic drive warning went away for a few weeks.

When it returned, I would also get a parking break fault chime after I turned the ignition off. About a week later I get the ABS/Dynamic drive chime and the red car along with the parking break light. But my turn signals started turning off on turns!

I had ordered an OBD reader that also did steering angle sensor calibrations. It came in Friday. I set it up and used it to scan OBD codes and got nothing. I went ahead and did the steering angle calibration for the hell of it. I got everything nice and straight and followed the calibration procedure. Display said current position was at zero. The reader also has an ABS and parking break reset procedure but I did not do it as I had already ordered a new ABS module. Well when I started my car this morning there were no lights and my signals worked again. It's been 60 miles so far and still no lights.

Finally--the question. Can the light trifecta be caused by a not calibrated steering angle sensor?
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Old 04-16-2017, 07:24 PM
Mid7er Mid7er is offline
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Mein Auto: 13 SWB Alpina B7 02 745i
Quote:
Originally Posted by UT4VIDA View Post
2007 750i
Got the dynamic drive warning and light a few months ago. Chime at start up and signals don't turn off after turns. Took everything apart and cleaned it all up per previous threads. Dynamic drive warning went away for a few weeks.

When it returned, I would also get a parking break fault chime after I turned the ignition off. About a week later I get the ABS/Dynamic drive chime and the red car along with the parking break light. But my turn signals started turning off on turns!

I had ordered an OBD reader that also did steering angle sensor calibrations. It came in Friday. I set it up and used it to scan OBD codes and got nothing. I went ahead and did the steering angle calibration for the hell of it. I got everything nice and straight and followed the calibration procedure. Display said current position was at zero. The reader also has an ABS and parking break reset procedure but I did not do it as I had already ordered a new ABS module. Well when I started my car this morning there were no lights and my signals worked again. It's been 60 miles so far and still no lights.

Finally--the question. Can the light trifecta be caused by a not calibrated steering angle sensor?
Steering angle sensor? In a word no, defective abs module was at fault for the trifeca lights, dsc, parking brake. I already tried steering angle calibration before getting a new abs module. New abs module solved all problems. Then i did the steering angle calibration to round it up. As for the turn signal being erratic it can be either caused by steering angle not calibrated or instrument panel linked accessories like power module going bad even the cluster itself. The scanner is your best friend.
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