Jumping into this thread to say that I've had very similar symptoms (couldn't check error codes because I lost my OBD scanner), except I've never heard the fans come on, ever.
I considered DIY-ing it ([DIY] IPU fan Code P1643 and P1448) but decided against it because I technically can't confirm if it's actually a P1448 and/or P1634 code.
Brought it into the dealership and they're quoting me $1500 for both the MCM module and labor, they're saying that one of the previous owners (I'm the 3rd owner) installed some janky extra wires in there and so the 15/150 warranty doesn't cover it (I'm in the Northeast).
By any chance, does anyone know how much the MCM module would cost and/or where to get it, and how easy it would be for me to fix it?
I have not checked yet with my local garage yet. I just a check light today. Mileage is 115000km.We need the IMA codes and a lot more background info for a reliable diagnosis.
What happened, when, symptoms, etc etc, etc..
Your local garage, or a suitable OBDII tool, HDS clone can read the codes.
Let my technician come tomorrow and see what codes im getting through diagnosticIt could be anything in the attached list at this stage..
Let my technician come tomorrow and see what codes im getting through diagnostic
Could it be 12v under the hood battery making issues to IMA. Last 12V Battery was changed at 84,000km. Now the mileage is 115,000km.
Under hood battery tested through multimeter is 13.61 +....Have under hood battery tested or replaced do you speak the language displayed and can you translate for us? Have codes pulled
Under hood battery tested through multimeter is 13.61 +....
I'm not able to understand the language message that is showing.
Have not got any codes while testing through diagnostic. I have to check with other diagnostic machine