"No Key" message - Nissan Intelligent key FOB
This is a push button start vehicle with an intelligent key fob and a key fob slot on LH side of steering column. The ignition would not turn on when pushing start/stop button. Inserting the key into key slot made no change. Nothing would happen other than "No Key" message showing on dash. Remote lock/unlock functions also did not work. The customer states that they just came to it one time and it rejected the key and displayed "No Key" The customer had already purchased a Dorman 99159 Intelligent key that came with an OBDII programming device. Dorman 99159 This programmer of course will only work to add an additional key if the vehicle already has one good functioning key. So the customer gave up and towed it to our shop.
Here is the VIN 1N4BL2AP0AN487007. I pulled codes from BCM with hazard flashers on. B2190 NATS ANTENNA AMP B2191 DIFFERENCE OF KEY I replaced battery in key fob but it made no difference. Tested for signal output from fob while pushing lock/unlock buttons but got no signal. I put key into key slot on dash with no change in operation. I determined that intelligent key was faulty.
Used Autoland Scientech Iscan II WT to first read the BCM serial number. There are four steps required to program a new key.
- Read BCM serial number
- Acquire 4 digit pin number per BCM serial number to be able to perform steering lock release and register intelligent key.
- Perform steering lock release (Key ID erase)
- Perform NATS initialization/Register inelligent key
One thing that had me confused for a bit was that the steering wheel was not locked. I inspected the steering column expecting to see a steering lock mechanism but could not find any. According to one service information source it should have one. After further checking it appears like they discontinued the lock on vehicles built in 2010 but that the 2009 models would have the lock and even the cars built in 2009 after July which would be considered 2010. This specific car was built 3/2010. Even though this car does not have a steering lock module it is still necessary to perform the steering lock release because it actually erases all the stored key id's. When performing the steering lock release with the Autoland, I put in my 4 digit pin and it accepted the pin but then threw an error message saying that the function did not complete properly. Even though I got the error message the function apparently did its job because I then inserted the new Dorman key into the key slot and pushed the start button and the ignition immediately turned on. An interesting note at this point is that I could also push the spring loaded gate in the key slot with my finger and the ignition would also turn on meaning that the key slot was not actually reading the key at this point but rather the steering lock release function allowed the ignition to turn on as long as the gate in the key slot was pushed on. I seriously had doubts about whether this Dorman key would even program correctly to the car, but I guess my doubts were soon unfounded.
The reason that the ignition must be on is for the Intelligent key registration. The scan tool must be able to communicate with both the ECM and the BCM to enter into the key registration function. I had seen on Identifix how you can manually power up the ECM to provide ECM communication to enter into the function and I tried that and proved that it did not work. Now that the ignition was on I entered into the function to register the intelligent key and again used the same 4 digit pin I use for the steering lock release. Note that the intelligent key must be in the key slot during this registration. The registration completed successfully and the car started and ran well. Also the remote lock/unlock functions worked as well. Apparently these are programmed at the same time as the intelligent key is.
I have attached various screen shots of the different menus on the Autoland. One important note is that there are two separate areas inside the BCM to find the key functions in the Autoland Scientech.
First go to Body, BCM, BCM control unit, Adaption, and then you will find the first two steps to perform 1. Read BCM serial/PIN number and 2. Steering lock release (Erase key ID).
The next step is what had me thinking for a bit that the Autoland was not capable of programming the key and I spent time hunting for the function.
To do the key programming once the steering lock is released ... go to Body, Anti-theft, NATS-Petrol, New NATS 5.0 (CAN), and then NATS control unit initialiazation. The process will show that it first communicates with the ECM and then with the BCM and then asks for your 4 digit PIN. Once that is all set, follow the prompts and it programs the key.
Likely this is not news to some of you, but I hope it may help someone out sometime. It was a learning experience for me and I wanted to share it with others. I have found the Autoland to do well with Nissan and Mitsubshi key functions.
David nice job putting together all the information. Question do you think the Dorman program would have done the job ?
It probably would have worked to program it as an additional key as long as the original one still worked. In this case the original was faulty and so it did not work for the customer. The instructions that came with the Dorman key and programmer clearly state that you must have one good working key for the Dorman one to program.
Dave thanks once again a great write up...good documentation
Is the PIN that the Autoland Scientech Iscan II WT reads in your first step, the PIN that you later have to put back in? Thank you.
No. The PIN reading is actually reading the serial number of the BCM. Since the BCM is behind the instrument cluster and hard to access to read the serial number they thankfully have a function to read the serial number. They should have it labeled "Read BCM serial number" in the scan tool instead of PIN. Once the serial number is retrieved it must be run through the Nissan NATS pin code calculator to come up with the 4 digit PIN/Password number to enter into the scan tool.
Thank you David. Is the Nissan NATS pin code calculator available just to certified VSP through Nissan SI, or is it rogue software roaming the inter-webs? (like the old Honda one)