15 Jeep Wrangler No Cooling Fan Tipm Fan Already Replaced Youtube In todays video i have a look at a 2015 wrangler that was dropped off from another shop that was having as hard time figuring out why the cooling fans did no. 2012 jku's radiator fan won't turn on. no codes are on. i have done everything that real jenius did diagnosing a 3.6l "pentastar" jeep jk radiator fan issue (code: p0480) car gets to like 240 and above slowly while idling since the fan isn't coming on. replaced: radiator fan, thermostat, temperature sensor, low fan speed micro relay in tipm and.
How To Fix A Non Working Cooling Fan On A Jeep Wrangler Jk Jeep Jumper wires. garden hose pressure washer (for cleaning) step 1 – clean any debris. before beginning diagnosis for a faulty cooling fan, ensure the fan and radiator are free of excessive dirt, mud, or debris. many jk owners regularly take their wrangler off road and often drive through some rugged terrain. I have a decent obd scanner (in the $100 range) that was giving the code (p0480 cooling fan 1 control circuit). looked at the service manual for this code and did some trouble shooting. mostly checking connections, checking fuses, relays, etc. the service manual has you check for shorted wires and relays. everything seems pretty normal with. Check the cooling fan fuse in the totally integrated power module (tipm) located under the hood. by removing the fuse, you can easily inspect if it is blown. if the fan was locked up for only a short period of time, replacing a blown fan fuse will typically restore functionality. a jk that keeps blowing the fan fuse is often a sign of a damaged. The high speed circuit bypasses the actual resistor, sending the full 12v to the fan for high speed. the ceramic resistor has three terminals (high low ground) on the input side and two wires (positive ground) on the fan side. relays may be tested in any normal fashion you are familiar with.
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