BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST - View Single Post - Selector lever malfunction: Not possible to change gear position.

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

03-08-2023, 08:17 PM	#8
fe7565 Lieutenant Colonel 557 Rep 1,599 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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