Question about 2002 Kia Sportage
Not sure why my main relay would buzz with the ignition switch off it is making noise while the car is off
On a replay there are 2 particular connections that cause that. When you look for numbers on that relay you will find the numbers 30, 85, 86, 87 and 87a. The problem is their is power going to 85 or 86 (they are the 2 control terminals that control the relay). that should not be. basically 87a allows power to go through the relay when the system is shut OFF, Terminal 87 is the path of power that turns on whatever is connected to it. Now... 85 and 86... one of them is ground... the other power. Typically 85 is ground and 86 power. Now to better explain what is going wrong. you have a connection that feeds power to 87a. that power is powering 87 which powers 86. when power is turned on at 87... it turns on 86... that causes the relay to pick up an break the connection of power to 87a while at a fraction of a second later making the contact to 87. So... the path of power is turning the relay on and off all by itself, LOL. I know this is confusing, sorry. But I hope it helps
Posted on Dec 19, 2014
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Posted on Jan 02, 2017
SOURCE: 03 kia soronto;
Just tow choice in your 2003 Kia Truck Sorento 3.5L SFI DOHC 6cyl:
- Your Ignition Switch is damaged; or,
- Your wires for the Warning Buzzer Relay is damaged.
Even when the OFF position any connection is open and drain your battery.
Check it and tell us news.
Posted on May 31, 2010
Tips for a great answer:
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Sounds like you have 2 problems. The buzzing relay could be a bad relay, or
the connection in the fuse block. Have had some problems in the block with corroded wires, or
loose connections that the relay plugs into.
The security light is the next thing. With the security light on/flashing, the car will not start. With
that light on, the computer is disabling the fuel injector circuit. After a try to start, it wont or dies,
leave key on for 10-12 minutes, or until light goes out. Then turn off key for 10 seconds, turn key
to 'on' position for 5 seconds, then turn to start and it should. This is a theft re-learn procedure,
and will sometimes remedy the situation for the time being, but will have to repair the problem. A
scanner should show codes(s) like b2958, b2960.
A common problem is the ignition cylinder and/or the ignition switch. With the buzzing of the relay,
i would say all this may be related to the ignition switch. A low voltage supply to any of the circuits
that the switch feeds will give strange electrical conditions. If going to replace the ignition switch,
then also do the cylinder at the same time. With all things described, sure sounds like the ignition
P.S. The locks may be related to the ignition switch problem or not at all. With that said, would
suggest looking at the BCM(body control module)It control locks, and also has allot to do with the
security system. See picture at bottom of this page of corroded BCM connectors.
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May 31, 2010 | 2003 Kia Sorento
Dec 18, 2008 | 1995 Ford Probe
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