Car Access System (CAS) module failure is a common problem on BMW and MINI vehicles. The CAS module enables your vehicle to start. If faulty, the car typically won’t crank and no start signal will be generated.
The CAS module is an important module in BMW and MINI vehicles for two reasons. Firstly, as it functions as an anti-theft system in your vehicle. For a BMW and MINI to start the CAS, Key, and the engine control unit (ECU or DME) need to be in sync. Secondly, the CAS stores the vehicle order (VO). The VO is essentially the coding that knows and controls all the car’s features, similar to the DNA of a human. It has information about the type of transmission, extra features, VIN, engine type, etc.
Typical signs of a faulty CAS include:
- No vehicle crank
- Vehicle not accepting the key
- Vehicle starts and stalls
- Yellow ELV steering lock on the dash
Once the CAS module fails, it will either require a repair or replacement unit. Repairs can typically be performed if the software on the unit is corrupt. Corrupt software is normally caused by failed software updates or when adding additional keys with incorrect tools. Hardware damage will require a replacement unit. Our replacement service offers a remanufactured CAS unit that is a refurbished OEM unit with the correct coding for your BMW and MINI.
To have your CAS module repaired, you will need to send the original CAS, KEY and DME [i]. The CAS module is located under the steering column in most cases. It is either a black or white box with 2 plugs. Removal of the CAS module is very simple and won’t take longer than 15-20min.
Once we receive your CAS, we will repair it and send it back. It will be 100% Plug and Play and come with a 6-month warranty. No other coding will be required.