Issue: Intelligent Key system warning light

[MrOwner07]

Hello to all.



I just had this light come on on my 2007 Nissan Altima S (Base Model)(QR25DE Engine), today. It has 142,000+ miles on it. I checked the manual that came with the vehicle and found out that it was the, “Intelligent Key system warning light” that popped up today while I was driving. When this happened the SPEEDOMETER needle stopped moving, but the RPM meter needle still worked, though. The car did move a little sluggish, but not too bad. (The steering was moving like normal. So there was no kind of struggle to turn the wheel.)

I was heading to the gym, when the "IKSW" light came on. (I’ll explain my I mentioned that.)After I spent an hour and a half in the gym, I came back and started the car. The “Intelligent Key system warning light” was not on, but the “Service Engine Soon” light came on and headed home.




The SPEEDOMETER AND THE RPM METER Needle were working as normal as I was driving (so far). Has anybody ran into this issue?

[telcoman]

When was the last time you replaced the battery in the Intelligent key?

Telcoman

[MrOwner07]

When was the last time you replaced the battery in the Intelligent key?

Telcoman

I have replaced the battery several times throughout my ownership of the car. I very familiar witj the alert indicator for when the battery needs to be changed.

[MrOwner07]

So after taking my car to a transmission shop, the vehicle diagnostic/report that I was given (free of charge) said this:

P1574 ASCD Speed Sensor ECU/ICC Signal Diff
P0845 Pressure Sensor "B" Circuit Fault
P1715 Input/Secondary Pulley Speed Mismatch

I was told that I will need a new transmission.

[seldomseen]

Okay....so what's next???