Radio/wiper delay not working properly

  • 2014 LINCOLN MKX
  • 60,000 MILES
Two problems started occurring at the same time. The radio volume randomly increases. It can be turned down but then will increase again after a random amount of time.
Also the windshield wipers work at the higher/full time speeds but not at the slower speeds. Can these two problems be related? Do you have any idea of the cause of either problem?
Do you
have the same problem?
Saturday, August 28th, 2021 AT 3:36 PM

1 Reply


I don't feel the two are related. The radio likely has a speed-sensitive volume control. When you come to a stop, the volume will lower, and the faster you are driving, it will automatically increase the volume.

I found a video showing how to turn it on and off. Try this and let me know if it fixes the issues with the radio.

As far as the wipers, there is a rain sensor that may be causing the issue. I do remember seeing a technical service bulletin of the wipers staying on low when the switch is off. Are you able to turn the wipers off?

The only thing I can think of that could tie these together is if there is an issue within the steering column. There is a steering column control module (SCCM) that may have failed and caused issues.

Here is what I'm going to suggest: The CAN-bus system needs to be scanned to determine if there are any diagnostic trouble codes stored in the SCCM. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. This type of scan will identify fault codes regardless of the module storing them. Here is a video showing it being done:

If turning off the speed-sensitive volume doesn't stop the radio problem, the module I mentioned needs checked. It is also responsible for wiper control.

Have that done and let me know the results.

Take care,

Was this
Sunday, August 29th, 2021 AT 8:26 PM

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