How to deactivate engine immobilzer volvo xc90

Question edited for clarity.
Question moved to sub category.

Generic answer for all vehicles with two banks.

Bank 1 means it is at the engine side with cylinders 1, 3, 5, etc. Bank 1 Sensor 2 is the second sensor on the engine's exhaust pipe, usually behind the catalytic converter on the way to the muffler.

And specifically locating and changing on your vehicle. Buy OEM sensors not cheaper alternatives.

https://www.google.com/search?q=2008+volvo+xc90+bank+1+sensor+2+location

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The immobliser battery (re-chargable Li-Ion) has begun to leak onto the immobilser board causing a short and inoperation of the immobilser function. It's located in the right wheel well behind the plastic liner. You can replace the battery yourself with a 3.6V 210mA phone battery number 303. Some soldering is required to replace the battery. Otherwise visit dealer to replace the immobilser board probably worth hundreds of dollars.

A Volvo is not a Cadillac. Volvo is now a Chinese company as of 2010. Volvo XC90 has either a V6 or a V8 engine. CTS FO is 123456 believe it or not. The V8 B8444S FO is 18436572.

Your answer is found here, go through this owners manual to the Bluetooth operation page. http://esd.volvocars.com/local/us/2013-Volvo-XC90-Owners-Manual.pdf

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Check your fuel and spark delivery

Click here to see,usually near the top radiator hose by thermostat housing.

you could do both but you might get a code that pops up

chenge the fuse and release the parking break