2018 Ford Focus SE Bi Directional controls for Fan not working in 24.2

[SnapOnKid]

I was working on a 2018 Ford Focus SE 1.0L

Here is a Vin you can use. 1FADP3FEXJL213822

The Bi Directional control for the Low and High speed fan's do not work in the 24.2 software. According to some other reports it hasn't worked in the snap on software for a while as I found reports from other users that they could not Control the Fans on there snap on scanner as far back as 3 years ago. It also affects the 2.0L engine on this platforum.

The low speed Fan on the vehicle I am working on does function at a predetermined temperature, The High speed fan also comes on when you enable the AC. How ever it does not function from the Scan tool side when you command it on and off. I was trying to make sure it wasn't shutting down prematurely do to thermal overload as the vehicle appears to have a cooling issue under load.


Screenshot 2024-08-27 120721.jpg

[konstantintrucking]

1. Check Cooling System Components: Ensure the thermostat, radiator, and coolant flow are all functioning properly under load. Even with functioning fans, restricted coolant flow or a faulty thermostat could cause overheating.

2. Inspect Fan Relays and Wiring: If the relays or wiring are partially faulty, fans may work intermittently or only under specific conditions. This could explain why the bi-directional control isn't responding but automatic control still functions.

3. Cooling Fan Module: If the vehicle has a cooling fan control module, it could be experiencing intermittent faults that prevent the scan tool from overriding the automatic function.

4. Software Workaround: While the issue with the Snap-on tool seems long-standing, it might be worth checking if there are updates for your tool or alternative scan tools that may offer better functionality for fan control on this platform.

Let me know if you need more detailed steps for any of these checks!