E46 fan relay test

Author: vqsi

August undefined, 2024

WebFeb 23, 2024 · Remove the relay and supply 12 volts to pins 30 and 85. Ground pin 86 and check for voltage coming out of pin 87. It is even better to connect pin 87 to something that draws a lot of currents, like the radiator fan, for example. READ MORE: How to Test an Automotive Relay at Home (5 Easy Steps) 6. Bad Fan Controller Module WebJul 21, 2016 · Unplug the lower rad hose coolant temp sensor. 3. Start car (preferably not while engine coolant is too HOT i.e. above 95C) let idle 15 secs then turn on AC compressor. 4. Fan should start spinning on high speed within 30 secs - If not shut car OFF to avoid overheat. This test only tells you that the fan motor works.

how do i test if aux fan is good BimmerFest BMW Forum

WebJul 17, 2016 · Note: While troubleshooting the E46 aux fan is outside the scope of this document, I'll point out that the E46 design replaced the individual relays with a speed controller integrated with the fan. If the … WebIf your test proves incoming power, replace the fan motor. Check for any blown fuses or a tripping breaker. If your find a circuit blown fuse or tripped breaker, the fan motor might be pulling too much voltage, causing the fault. Check … ontharing oksels

Fuse box diagram Bmw E46 and relay with assignment …

WebFeb 21, 2024 · First test the fuse for the radiator fan. If it checks out, test the radiator fan relay. Here’s how to test a radiator fan relay. Unplug the electrical connectors to the radiator fans. Then turn your A/C to the MAX position and start the engine. Use a multimeter to check for power at the unplugged fan connectors. WebIn this publication, you can familiarize yourself with the locations of the relay and fuse boxes of the BMW E46 3 series with a designation of the circuits and their location. ... Heater Fan Relay – Behind Center Console: 36: … WebNote: While troubleshooting the E46 aux fan is outside the scope of this document, I'll point out that the E46 design replaced the individual relays with a speed controller integrated with the fan. ... Reinstall the fan and test it. Make sure the screws are tight and all tools are clear of the engine driven fan, and then start the engine (yes ... ontharingshars

how do i test if aux fan is good BimmerFest BMW Forum

DIY: Hardwiring your faulty fan E46 Fanatics Forum

WebSep 29, 2024 · The amount of energy needed to keep these functions active is the expected “parasitic draw” of the system. I have never seen the draw for a properly working e46 exceed 45 milliamps, with a under 30 being … WebJun 14, 2024 · Poor air conditioning performance. A faulty cooling fan relay can also negatively affect air conditioning (A/C) performance.The reason being, on most vehicles, is that the cooling fan doubles as a condenser … ontharingspads etosWebOct 7, 2009 · try finding the power wire to the fan. You should be able to follow that wire to some sort of relay or switch, which could be shot. Try shorting the power wire just to see if the fan runs. could be the fan motor. I also have a 328i and mine overheated cracking my resevoir tank spilling all my fluid. ontharingsmethoden

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E46 fan relay test

Diagnose this aux fan problem? BimmerFest BMW Forum

WebApr 10, 2011 · It should run for a few seconds just after the engine starts. The motor's voltage output as it spins down is measured by the ECM to confirm the fan motor is good. If the temp sensor fails or the ECM gets an invalid reading from it, it uses a default value of 212F according to the Bentley manual. That should cause the fan to run. WebJul 30, 2024 · Top Answer. Nick B. February 5, 2024. On the BMW E46, You won't find a turn signal or hazard relay with the rest of the relays in the engine compartment fuse …

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WebIn this publication, you can familiarize yourself with the locations of the relay and fuse boxes of the BMW E46 3 series with a designation of the circuits and their location. ... Heater Fan Relay – Behind Center Console: 36: …

WebMay 20, 2024 · High speed relay - Relay panel 2, behind glove box (K22) Normal speed relay - Engine compartment E-box (K21) Stage 3 relay - Engine compartment E-box (K201) Engine cooling fan switch - right side of radiator (S36) Pics to follow! Sorry scanner produces tif files not accepted by this forum. Will try again tomorrow. I'd start by … Weblevel 1. cnrtechhead. · 7 yr. ago A couple e46es and an X5d. You can test that the fan is receiving power with a multimeter - you'll want to test between the thicker (red and brown IIRC) wires on the aux fan connector. If 12v is present, then you've got a bad speed control box on the fan assembly and will need to replace the aux fan.

WebJun 17, 2011 · I tested it by idling and monitoring coolant temp (func 7.0). Fan engages at 90C at slow speed (no A/C) and if I turn on A/C and temp rises up to 92C the fan starts to work faster and temp quickly goes down back to 90C. But even at high speed its noise is a whisper in comparison with aux/mech fans' noise. Later will do a test drive. WebSorry to hear about your fan problems. The reason you cant find the relay is because there isn't one. Its directly controlled by the DME. It gets power from Fuse F37 in the glovebox …

WebAug 17, 2014 · The aux fan is suppose to turn on low with the ac button is pressed. But it is also supposed to turn on if the radiator temp switch hits 91 degrees celsius in low speed …

WebSep 18, 2024 · HOW TO TEST RADIATOR FAN ON BMW E46 E39 E60 E53 X3 X5 Z3 Z4 E83 E85If you have BMW and your car is overheating or you notice that the radiator fan is not wor... ionithermie body treatment reviewsWebJul 4, 2012 · BMW-North. Anyone have a good way of bench testing the Aux Fan Relay (AFR) that is on the fan shroud. Fan motor works fine. (12v to the 2 wires from the AFR) Under certain operating conditions, the engine control activates the electric fan at … ionithermie nycWebOnce your vehicle has cooled down, you can check under the hood and see if the cooling fan is properly spinning. With jumper wires, you can hook up one end to the negative terminal and one end to the positive terminal of … ontharingspoederWebFeb 23, 2011 · With fan on high and grounded to the door hinge, I am seeing 12 volts on the green and yellow with greeen strip. The small blue wire is at 8 volts. The brown and tan wires are both <1. As I am rotating the FSR in my hand to check the last wire, the fan suddenly starts blowing. As I "jiggle" the connection, the fan starts going on and off. ionithermie lotionWeb2 - K6325, Ultra Sky Blue Relay (Reversing Light-Auto only) or K6318, SMG pump-M3 w/SMG only (Salmon ) 3 - K6326, Unloader Relay (Salmon or White-Green) or K6327, Fuel Injector Relay 4 - K11, Front Windshield Wiper Relay (Green-Brown) ontharingslaserWebJan 5, 2016 · Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required. 1. Engine running hot. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal ... ontharingssprayWebJun 28, 2024 · I've got a 2004 E46 330ci auto. ... When plugged into INPA responds to the cooling fan test. I.e can run at 20% and 80% etc and spins accordingly. ... Can’t be a relay problem as you said it ... ionithermiecorrective treatment