Yes , I did clear the codes with the scanner, disconnecting the 12v battery for a few min. And then run the scanner again, there wasn't any code on the computer so I went for a test and after 10 min. Of driving the fan kick in at full blast like crazy loud 📢 after of driving for 45 min. The fan start slowing dying, stop and turn on again , hook the scanner and saw that the 12v wasn't being charge and the 2 codes come back.This is the wrong forum for the 2005 Accord hybrid.. However...
Did you clear your old IMA fan code properly after installing the new fan?
If not it might still be there waiting to be read.
P0A7F is IMA battery deterioration IIRC so you have more than just a possible fan problem.
As your IMA battery is bad, it is shutting down the DC-DC so the 12v battery is not being charged, hence losing AC, steering and car stalling etc.
You need to fix the IMA battery, speak to Bumblebee batteries in the US.
Have you checked for things like blocked IMA inlet and outlet vents.
Mice make nests in weird places. If the code really has come back try and get a proper fan from a breakers yard.
Really good info, I would like to know which MOSFET are you referring too and if you test the continuity with the MOSFET still soldered to the board?I recently got a bad fan back from a UK CR-Z owner who had the P1448 fault.
This video shows good V bad fan bench test using a 12V current limited power supply.
Note the bad fan may not move at all in this test, and visual inspection might reveal clearly blown mosfets. (This fan did not have obvious visual mosfet damage)
Anyway after removing the pcb from the motor and testing the bad fan 6 x mosfets with a multimeter on basic continuity, it shows a blown (short circuit) mosfet that I have now removed.
You can buy them on e-bay for $5 for ten so it should be a case of simply soldering in a new one and off we go.
Note the solder on the PCB is high melting point. I had to turn my soldering iron upto 480C before it would melt properly.
Careful you don't mangle the pcb traces.
The NEC K3755/2SK3755 mosfet is a slightly narrow TO-220 insulated body type and I don't have any suitable in stock, so will order some and report back when fitted.
Might be a while on the slow boat from the far east. Note you could use any compatible pinout similar spec N Channel part.
Data sheet attached.
View attachment 69343
I now have three fixed IMA fans in stock for UK/EU owners if needed.
I managed to repair the latest one just now by replacing two mosfets.
These had not completely failed but were bad enough that the fan would not start occasionally depending on where it stopped.
The fan driver times out after a few seconds if the fan does not start rotating, probably to prevent damage to the drivers if the impeller is locked.
So this could/would cause an annoying intermittent P1448 as sometimes it would start and other times it might not.
If anyone in the UK has a dead IMA fan sitting around please send it to me. Thanks...
I wonder what's on the previous page of this thread LOL..Peter I know it's been posted before but what is the part # of those MOSFET's?