3 Series (E90) E90 No Crank.


The fifth generation of the BMW 3 Series range of compact executive cars is designated under the model codes E90 (saloon), E91 (estate, marketed as 'Touring'), E92 (coupé) and E93 (convertible). The model was produced by BMW until October 2013 and is often collectively referred to as the E90, E9x, or occasionally, the E92.

WillDwyer

Autobahn Newbie
Hi,
I’ve got a e90 320i Manual 98,000 kms, I’ve got a no crank issue. When I attempt to start it everything has power except the steering is locked and the wipers go crazy. I also get a code saying P1631 - Theft Deterrent Start Enable Signal Not Correct. I have put a copper cable between pin 21 and 22 on the cas module connector and it cranks the starter, so clearly the CAS is receiving power. could it be the DME or would it be the CAS? Or something completely different? Any help appreciated.
I’ll also attach the codes that I received.

Any help is greatly appreciated!
 

Attachments

  • IMG_1190.webp
It could be a fault with immobilizer, the code in the key, steering locking mechanism or worst case scenario: seized engine.
 

BMW

Bayerische Motoren Werke AG, abbreviated as BMW is a German multinational manufacturer of luxury vehicles and motorcycles headquartered in Munich, Bavaria, Germany. The company was founded in 1916 as a manufacturer of aircraft engines, which it produced from 1917 to 1918 and again from 1933 to 1945.
Official website: BMW (Global), BMW (USA)

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