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Kiatech
Kiatech, Kia Master Technician
Category: Kia
Satisfied Customers: 210
Experience:  30+ years experience,ASE certified,KIA certified Master Technician,Ford factory trained
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Alarm went off in my 2016 kia sedona, then it wouldn't

Customer Question

alarm went off in my 2016 kia sedona, then it wouldn't start. replace batter and alternator now the battery is dying.
JA: Have you tried locking and unlocking the driver's side door using the key itself?
Customer: yes
JA: Are you fixing your Sedona yourself? What have you tried so far?
Customer: battery and alternator. battery dying again
JA: Anything else you want the mechanic to know before I connect you?
Customer: it started with tryibg to start and horn beeping
Submitted: 4 months ago.
Category: Kia
Expert:  Chad Farhat replied 4 months ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Expert:  Chad Farhat replied 4 months ago.

Hey how are you

1-If the battery keep dying and the anti theft module keep seeing low voltage condition it will keep triggering the alarm horn.

2- 2 things needs done here ,first a battery drain test and Factory scanner or equivalent to read the anti theft module to retrieve the fault codes and see why is that

it could be a door switch ,hood switch , receiver ,key etc...But in this case since we know the battery dying ,that means some thing is staying on module, short to ground etc.. so that is why you can start with drain test and see which module is doing or circuit , if for example the headlight switch fuse is drawing amps while car off,then we go to that switch and circuit ,

read below for testing for drainage

Battery Drainage Test

1- Voltmeter
2- settings on voltmeter will be on milli amps.
3- go across all the fuses in the car and see which one is reading higher than 0.3 to 0.5 milli amps
4- the fuse drawing more than 0.5 miili amps ,will be the suspected circuit that needs inspection for the drainage.

Get those results and fault codes and post the, back here for me and i can help you further on it

Please let me know

Thank You

Chad Farhat

ASE Certified Technician