How do I test a radiator fan?
How to Check a Radiator Fan
- Determine whether your radiator fan is manual or electric.
- To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on.
- Use the volt meter to test if there is power to the wires.
- Normal voltage for a radiator fan is around 12 volts.
How does a radiator fan control module work?
The sensor works by measuring the temperature that’s being given off by the thermostat and/or the coolant itself. The temperature is then sent to the on-board control system. As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on.
How to test radiator fan module control box?
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Can a VCD diagnostically test a radiator fan?
This controller does not have diagnostic capabilities and does not communicate with VCDS. If you look at a wiring diagram, you will notice the ECM – (J220) does have a connection to the J293 and this is the signal wire the ECM uses to command the fan ‘on’, using a PWM (pulsed-width-modulated signal).
Where is the fan controller on a 2003 A4?
The 2003 A4 uses a J293 – Coolant FC (Fan Control) Control Module to control the electric cooling fan, it is located above the electric fan. This controller does not have diagnostic capabilities and does not communicate with VCDS.
What causes a radiator fan to INOP?
That would also explain high PSI in the ac from inadequate cooling. If the outside ambient temp sensor is reporting an incorrect low temp……….such as -40C this will also force the AC and fans to INOP or sporadic. In many cases there will be no error for it. Be sure to log it. Very detailed thank you!
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What are the symptoms of a bad AC fan control module?
2. Cooling fans not running at all If the cooling fans are not coming on at all, then this may also be a sign that the fan control module is damaged. Without the cooling fans running properly, you will be at risk of having the car overheat. Running a car hot for a long period of time can lead to other damages like a blown head gasket. 3.
Why do I need to test my engine cooling fan?
So, cooling fan motors are an important component to any engine cooling fan assembly. And, play a key role in keeping the car at safe temperatures, during idle and low speeds. Finally, if you suspect that your cooling fan motors may be having an issue; do some testing to see if you can fix it yourself.
Where is the fan control module on a car?
The A/C fans that are mounted in near the radiator of the car are also controlled by this module. Usually, you will have a variety of signs that the A/C fan control module is going out.