Selector lever malfunction: Not possible to change gear position.

cgraner · 03-02-2023, 11:06 PM

2012 BMW 328i with 4 cylinder turbo engine and automatic transmission. No lights on the shifter and getting this message below and cannot put the car into Forward or Reverse. Changed out the shifter with a supposedly good used one and no change. All of the fuses that are know to cause power to the shifter and transmission control were checked and are good. Any ideas on what to check next? Currently the car is stuck in park in the garage.

Selector lever malfunction:
Not possible to change gear position.
Consult nearest service center.

Billfitz · 03-03-2023, 07:11 AM

Show us your pulled error codes.

cgraner · 03-06-2023, 06:25 PM

Quote:

Originally Posted by Billfitz

Show us your pulled error codes.

Finally got a code reader that will read the codes. Pulled codes including the ones below. Cleared all codes. These codes came back:

3 Transmission Control Module Codes

CF1701 – No description available
ACTIVE

CF17A1 – No description available
ACTIVE

CF17B1 - No description available
ACTIVE

Billfitz · 03-06-2023, 09:06 PM

Now google each, prefaced with BMW, as in 'BMW CF1701'. That will point the way to other's experiences with the same problem, and hopefully a fix.

cgraner · 03-06-2023, 10:16 PM

https://bmwfault.codes/

cgraner · 03-07-2023, 08:55 AM

Cf17b1 reciever EGS transmitter GWS

https://allcarsolution.com/cf17b1-re...ansmitter-gws/

cgraner · 03-07-2023, 09:04 AM

https://www.bimmerpost.com/goodiesfo...ectronics1.pdf

Page 2 - 3 does a good job explaining what control units are where
F30 General Vehicle Electronics - Vehicle Electrical System - Control Units

fe7565 · 03-08-2023, 08:17 PM

The GWS is redundant by being included both in the PT-CAN(1) and PT-CAN2 buses. I had one bus fail (PT-CAN(1) and still was able to shift and drive.

Some folks also had issues with LEDs being blown in the selector, but unlikely that is the cause.

First eliminate any power and ground issues. I recommend that you check your GWS connector with a multi-meter for power and ground. Make sure you have a good ground. Check the Wake up Signal. Then check with an Ohm-meter the resistance between PT-CAN(1) High and Low and PT-CAN2 High and Low. You should get around 60 ohms. Let us know, amd we go from there...

This thread may give you some clues where to look:

https://f30.bimmerpost.com/forums/sh....php?t=1991628

mozkau · 06-22-2023, 01:33 PM

Good day!

I have absolutely the same problem on my G20 320D xDrive.
My car stated that gear selection is not possible and told me to visit the nearest service center.

Later on, I discovered that I'd parked in a little bush with ANTS. I think they could cause a problem inside the gear switcher board. Is there a scheme I could use to check?

Some pics:
https://i.ibb.co/f8MRnJk/IMAGE-2023-06-22-22-20-32.jpg
https://i.ibb.co/Wtd2Wc4/photo-2023-06-22-22-16-55.jpg
https://i.ibb.co/dcLFHbx/photo-2023-06-22-22-16-54.jpg
https://i.ibb.co/D48H8P2/photo-2023-06-22-22-16-53.jpg
https://i.ibb.co/LgH45qz/photo-2023-06-22-22-16-51.jpg
https://i.ibb.co/nfzKScn/photo-2023-06-22-22-16-48.jpg

Error Codes:
https://i.ibb.co/f8MRnJk/IMAGE-2023-06-22-22-20-32.jpg

802692 - Hall Sensor First
802694 - Hall Sensor Twice
804415 - Radio control (I have it unplugged)
CD95FE - wrong signal (state of gear switcher 197h)
CF3101 - Signal (control of gear switcher)

Any help would be appreciated

03-02-2023, 11:06 PM	#1
cgraner New Member 1 Rep 11 Posts Drives: 2014 BMW 335i, 1998 BMW M3 Join Date: Sep 2020 Location: Toney, AL iTrader: (0)	Selector lever malfunction: Not possible to change gear position. 2012 BMW 328i with 4 cylinder turbo engine and automatic transmission. No lights on the shifter and getting this message below and cannot put the car into Forward or Reverse. Changed out the shifter with a supposedly good used one and no change. All of the fuses that are know to cause power to the shifter and transmission control were checked and are good. Any ideas on what to check next? Currently the car is stuck in park in the garage. Selector lever malfunction: Not possible to change gear position. Consult nearest service center. Attached Images
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03-03-2023, 07:11 AM	#2
Billfitz Lieutenant General 8273 Rep 16,136 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	Show us your pulled error codes.
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03-06-2023, 09:06 PM	#4
Billfitz Lieutenant General 8273 Rep 16,136 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	Now google each, prefaced with BMW, as in 'BMW CF1701'. That will point the way to other's experiences with the same problem, and hopefully a fix.
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03-06-2023, 10:16 PM	#5
cgraner New Member 1 Rep 11 Posts Drives: 2014 BMW 335i, 1998 BMW M3 Join Date: Sep 2020 Location: Toney, AL iTrader: (0)	bmwfault.codes https://bmwfault.codes/ Attached Images
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03-08-2023, 08:17 PM	#8
fe7565 Lieutenant Colonel 553 Rep 1,590 Posts Drives: 2012 BMW 328i N26 Join Date: Nov 2013 Location: United States iTrader: (0)	The GWS is redundant by being included both in the PT-CAN(1) and PT-CAN2 buses. I had one bus fail (PT-CAN(1) and still was able to shift and drive. Some folks also had issues with LEDs being blown in the selector, but unlikely that is the cause. First eliminate any power and ground issues. I recommend that you check your GWS connector with a multi-meter for power and ground. Make sure you have a good ground. Check the Wake up Signal. Then check with an Ohm-meter the resistance between PT-CAN(1) High and Low and PT-CAN2 High and Low. You should get around 60 ohms. Let us know, amd we go from there... This thread may give you some clues where to look: https://f30.bimmerpost.com/forums/sh....php?t=1991628 __________________ Help each other: if you manage to fix your issue (especially with help from this forum), don't be a dck and disappear. Follow-up by posting the solution so you can help others. Last edited by fe7565; 03-08-2023 at 08:25 PM..*
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06-22-2023, 01:33 PM	#9
mozkau Registered 0 Rep 1 Posts Drives: 2020 320D xDrive Join Date: Jun 2023 Location: Georgia iTrader: (0)	Good day! I have absolutely the same problem on my G20 320D xDrive. My car stated that gear selection is not possible and told me to visit the nearest service center. Later on, I discovered that I'd parked in a little bush with ANTS. I think they could cause a problem inside the gear switcher board. Is there a scheme I could use to check? Some pics: https://i.ibb.co/f8MRnJk/IMAGE-2023-06-22-22-20-32.jpg https://i.ibb.co/Wtd2Wc4/photo-2023-06-22-22-16-55.jpg https://i.ibb.co/dcLFHbx/photo-2023-06-22-22-16-54.jpg https://i.ibb.co/D48H8P2/photo-2023-06-22-22-16-53.jpg https://i.ibb.co/LgH45qz/photo-2023-06-22-22-16-51.jpg https://i.ibb.co/nfzKScn/photo-2023-06-22-22-16-48.jpg Error Codes: https://i.ibb.co/f8MRnJk/IMAGE-2023-06-22-22-20-32.jpg 802692 - Hall Sensor First 802694 - Hall Sensor Twice 804415 - Radio control (I have it unplugged) CD95FE - wrong signal (state of gear switcher 197h) CF3101 - Signal (control of gear switcher) Any help would be appreciated Attached Images
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