2016 Kia Sedona Intermittent No Crank No Start
Perhaps not a laborious diagnostics but for some that are new to push to start systems may have you chasing your tail. Customer complain was a No Crank/No Start condition for this Kia Sedona. Checked the condition and car would start, after many attempts I had the car fail a couple of times where it would not start. At once it almost led me to believe it was the starter as there were two times when I can hear the starter kind of smack the flywheel but very poorly, like it tried but gave up in a split second. I checked the starter relay and it was good. I connected the scan tool to monitor the ignition switch. This is a push to start so only the scan tool can tell you what the module is seeing from it or tapping into the wires but they are hard to reach and are time consuming. I monitored ignition events and out of the two ign, every now and then, ign1 would not send a signal when the button was pressed. The other way to know without the scan tool that this was happening was to look at the cluster and if the accessories did not fully load, then the signal was not received and the Kia animation car would not show on the cluster. Every time the Kia animation car did not load, the car would not crank/start and this was my test to see how often it would fail, I can say that 80% of the times the car would start. I immediately ordered a switch because I knew the problem had to be with the contacts, per Mitchel diagram, these two signals (ign 1 & 2) are actual switches when the buttons are pressed. I could not leave this alone and decided to disassemble the switch to see what was causing it and I could see contamination and perhaps corrosion indicating an issue.
All in all: OEM push to start switch fixed the problem.
Any thoughts as to what caused the corrosion? Anything gassing? Seems odd to think moisture. But Very well done!
A lot of these used cars get detailed so my first thought was possibly some sort of chemical being sprayed in the area but I couldn't think of anything else.
Good old Mother Nature at work? Humidity? Or some one was spraying down and cleaning the interior of the vehicle way to often? I love to see Armor All drenched dashes also. Working with bare hands during assembly could have been a contributing factor as well
Jose, thanx for posting, with everything going to proximity push button start I ask ATG if they can put on a class for that, we will have to see if they come thru, I do believe by 2022 every car will be push button start, if not already. nice find Jose
Hi Raymond, For all these years I thought the Jetson's was a cartoon from the 60's, now we are seeing all kinds of push buttons and capacitive resistance technology. In a few more years everything will be automated and self driving. I want to see the results if we ever get a massive solar flare from the sun, anything electronic will be toast.
Not really funny but very probable.. I don't know if our government has yet done something about it, preventatively speaking.
Hi Doug, The Northern Lights that people always talk about is actually the earths atmosphere fending off plasma burst that continually travel long distances through space from the sun. That is my understanding of it when I read upon the subject. Our last recognized extreme solar flare was recorded back in March 1989. it effected power grids all over the world. I am not a physics/ science geek…