View Full Version : J293 Fan control module
905084
September 29th, 2018, 16:32
Big fan running randomly killing my battery. Shop won't diagnose because car has a chip. Can only figure it is J293. Anyone have any pics of their beast that is apart or can tell me where it is located?
Thanks!
nubcake
September 30th, 2018, 10:41
It's integrated into the big fan itself, I think.
Small one has an external control unit, located under left (driver's side) front frame rail.
905084
September 30th, 2018, 23:24
I think you might be right. Thanks. Seems that the big 12v wires are hot all the time.18643 So I assume the small ones are the control from the ecu or fcu?
nubcake
October 1st, 2018, 10:44
So I assume the small ones are the control from the ecu or fcu?
Should be PWM and ground, I guess.
905084
October 1st, 2018, 19:02
Jumpered the 12v into the fan with no signal input, fan spooled up after 10 seconds or so. Bad fan controller I'm guessing. P/N 4B3959455F or E. $950 from the dealer. Anyone have a used one they want to sell?
Thanks for the help.
905084
October 23rd, 2018, 23:54
Fixed it....18676