All of the following issues began at the same time: Wipers only work intermittently and only on high. Speedometer only works intermittently but is accurate when it does. Inside temperature display shows dashes instead of the temperature. AC blows but no cold air. Horn rarely works. Gear stick is hard to dislodge from park after starting the ignition, also intermittent.
The car underwent 3 unusual events in the few days prior to these issues which are as follows: I purchased a new alternator from AutoZone and paid a mechanic to install it. I gave someone a jump and the pouring down rain late at night. I drove through maybe 30 ft of high water but all of the other traffic was driving through it also.
I I took it to Kia for diagnosis and they weren't sure what is wrong with it. They said I could try replacing the engine control module for about $2,500 but they didn't know if that would resolve it. I also replaced the BCM and had it programmed by KIA to the VIN and had the very same issues. This has been going on for a year now and I don't know how to get my car properly repaired. Any assistance is appreciated.
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There is no way someone on the internet can help with this mess, but I'll try to give you direction. Taking any car for a swim is never a good idea. Water getting where it's not suppose to be, with systems energized, is what got you to the point in time we're at now I believe.
The horn circuit is the easiest to troubleshoot and would be where I would have a mechanic start. When you press the horn button on the steering wheel, does the horn relay up front click? Is there power and ground on the horn itself when the button is pressed? May be just a bad horn.
The HVAC controller would be next on my list. Is the relay to engage the compressor working? Is it being commanded on? Are the cooling fans coming on with the A/C on? The HVAC controller is also in charge of the outside temperature sensor you seem to be having problems with.
The ATM module controls the shift lock mechanism for shifting out of park.
I would have a mechanic troubleshoot the easiest system first. It'll usually lead to you where the problem is.
Good luck.
