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#1
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8D Activation, electric fan
The engine runs normal temp. When checking the data stream on my iCarsoft, the Voltage, temperature sensor, engine outlet is always 0 volts. I need to check if the fan runs by hot wiring, but could this be the engine temp sensor is bad? And where might that sensor be located . I also always see the Duty cycle for the electric fan stays constant at 8%. Curious for a fan that never operations. Any help here appreciated at I continue to diagnose. I just didnt want to replace the fan assemble if its a sensor or actuator that is really the problem. |
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#2
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Quote:
One way you can check the fan is to disconnect the coolant output sensor located on the passenger side lower radiator hose. That should kick your fan on to full speed. If you're not getting voltage to the main electrical supply at the connector, check your 50Amp fuses ...I believe its fuse 65...but double check. Its in the glovebox fuse block.
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2003 E53 4.6is, titanium silver, black Nappa interior |
#3
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Agreed on all points, but wanted to point out that the fuse location changed for the facelift cars, and also when I had this same problem (aux fan not running) I found that in my pre-facelift car, the fuse was in the location it should have been on facelift cars. So check both locations if you have a pre-facelift car. They are in the Bentley manual.
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2003 3.0 5MT Topasblau Purchased in 2016 and surprisingly still running |
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