Starting difficulty due to defective anti-theft control module on Kia Sedona

Difficulty starting the vehicle may be caused by a defective vehicle immobilizer (anti-theft) control module.
RepairPal Verified
Average mileage: 101,218 (120–250,000)
12 model years affected: 2002, 2003, 2004, 2005, more2006, 2007, 2008, 2009, 2010, 2011, 2012, 2014
74 people reported this problem
50 people shared problem details
2006 Kia Sedona85,000
Turn the key and car won't start. No noise at all from engine trying to turn over. All electrical devices work though, radio, lights etc. Usually have to lock and unlock doors to reset anti theft system, then have to hold key in start position for a few seconds before it starts
Upvoted (40)Flag inappropriate
Been having problems for last six months. Dealer changed anti theft module three weeks ago. Two day later same issue. Returned vehicle to shop following Monday. Dealer had vehicle two days with no issues. They cleaned terminals on starter and swapped relays. Next day I had same issues twice. Worked fine for 1 week. Then last night issue returned. Sometime have to turn key up to 40 times before it will start.
Upvoted (12)Flag inappropriate
2006 Kia Sedona81,000
car will start sometimes without a problem. suddenly won't start. dealer confirmed immobilizer control mod.
Upvoted (11)Flag inappropriate
2006 Kia Sedona89,500
The car starts and runs great but occasionally will not crank. All the proper lights come on the dash, everything else works fine but no crank. It may crank again on the next attemt or not for 10 -20 min. Some blogs say to thump on the relays in the cabin fuse box or the engine compartment fuse box. I have done so and had no luck but then suddenly it will crank and start. I have no clue if the thumping helps or if it is just coincidental.
Last November this happened for the first time - turned key, lights all on, engine did not turn over at all. Dealer said poor connection to starter removed, cleaned and re-secured both + & - cables. Van was fine until mid July. Same problem. Dealer replaced relay, still didn't start, now does intermittently. Dealer claims no knowledge of this easily findable problem with the Vehicle Immobilizer Control Module. Huh? Reports been going on for last 10 years!
2006 Kia Sedona60,000
Issue starting mini van. Have repair contract. Kia dealership says they know nothing about this issue and can not fix it until it happens in shop.
van won't start have to keep clicking till it will turn over i believe it's in the theft system because it doesn't work anymore
2006 Kia Sedona107,000
Some web site says you have to bang hard and sharply on the area near the fuse box. Sounds weird as a solution, but it works.
2006 Kia Sedona150,000
intermittent for a while now. First work around was taking out and/or pushing in the alternator fuse under dashboard, worked for a while then stopped working. Found work around on youtube where i can go to fuse box under hood, take off grey start relay cap, make contact and car starts every time i do this. But inconvenient and no fun in below freezing temperatures.
2006 Kia Sedona80,000
not repaired.weird pain in the neck.
2005 Kia Sedona120
All Lights turn no bit it Won't star for like 3 hrs first time and second third time it took all day I took it to the mechanic and it star it he said he doesn't know what can be if is staring.
2006 Kia Sedona109,000
My '06 well-maintained Sedona is randomly refusing to turn on despite having replaced the battery 5 weeks ago. When I turn the key, all electrical systems are fully functioning but the engine is completely silent. Both times this has happened, it has self-resolved after about 20-30 minutes. Alternator checks out totally fine. Dealership stumped. I will be printing out this thread and taking it in to them. Thanks for the help!
2014 Kia Sedona17,400
it eventually started
2007 Kia Sedona95,000
Kia Sedona won’t start after you shut it off I’ve tried all the trick so far the only sure thing is you must wait at least 30 min before it will turn over again. MAJOR PAIN IN THE ASS
2007 Kia Sedona131,000
no crank, no start. accessing relay under the dash (neown square box) seems to help)
This happens randomly...sometimes it starts, sometimes it doesn't. When I get in the van, I swipe my anti-theft device and insert the key. The dash lights come on as usual, headlights come on, van will not start. I have tried several things like locking and unlocking the doors, to no avail. Now, I just turn the key and hold it there until it finally starts. I have not been stranded yet, but it wouldn't surprise me. I have called 2 area Kia Dealers and they said they have not heard of this problem!!
2005 Kia Sedona150,000
Kia Sedona started having what we thought was overheating issue. Replaced radiator cap, problem resolved for about a week. Went to the store, came out, tried starting, not turning over. Waited for a while checking different things (fuses-all are good and click when trying to start, kept trying to start her, turned heater on, played with windows/lights-all fine. Turned key 4 times in a row and it started. Bench tested starter, fine, reinstalled. 2 days later, wouldn't start again, fuse relays clicking, no starter noise but now have a buzzing noise coming from under the van. Fuel pump/relay issue? Anti-theft control module issue? We are at a loss. When she does start, she runs beautifully.
2011 Kia Sedona80,000
Van will not start, click, or anything. All of the electronics work
2005 Kia Sedona128,097
Turn key and nothing dealer replaced some fuse inside of dash . not the ones in fuse blocks .he said it was inside of dash they charged $600 now same problem. He will tell me what fuse and where he said it will be another $600. It has been almost 6 months.
2006 Kia Sedona99,000
My car just won't start. All lights come on as well as the radio. When I turn the ignition there is no sound. I took it to my mechanic 4 times already and they don't see a problem. I did change the battery and the problem stopped for 2 weeks. The car just stops working for no reason known to me or my mechanic. Then usually it starts back up about an hour later. I'm in Texas and I can't stay in the car waiting, hoping for the problem to resolve itself. I'll never, ever buy another Korean car.
Related Items:
Ok all. Heres a stumper. My wifes Kia minivan was running fine. No issues whatsoever. well...
I have replaced the temp. sensor and I am still getting a PO118 code.Car will start good when c...
When you turn the key, nothing happens. The lights, radio, windows all work, but the car is co...
Now engine is sputtering and recently began knocking lioke metal clinking in engine when starte...
Reprogramming the transmission control module with the latest Kia transmission software may fi...

Related Content