I replaced a battery today on a 2003 jeep liberty and when i connected the wires, the horn honked and then the wire before the main fuse block started to smoke, now the malfunction indicator light is on, and when we drove it around the block, the battery light came on, please helpppppp

check list --start with power and connections then switches wiring and components

That is most likely in your security system. It needs reset.

You may have wires that have become crossed. The wire to the horn and a hot wire have probably lost the outer insulation and crossed each other causing the horn to start honking when it is connected. Check the wires with an electrical tester.

the horn is simple , a horn a relay and switch, and fuse 15?.

but is complex by other factors.

1: the clock spring . no air bags in 1991, so very easy.



there are 2 ways to diagnose any horn..

1: hot wire it, does it now honk? if yes, hot wire the relay does it honk now?

2: or use any voltmeter ever made and find out why.



#2 is the save way.



id hot wire the horn and make sure that 1991 ground bolt

mount is really still at ground potential. id bet that bolt has

long sense rusted, and is useless, like most are by now.



the fuse and relay are both in the PDC

the PDC means, engine bay fuse box in gringo. (non jargon)

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

here is 93 for free.

see horn page one and the 2 tests.

or see the schematic.

at there, see the fuse box see fuse 15 (PDC 15?)

same chapter, see PDF page 90 (sheet33)



as you can see if the fuse is good.

12vdc arrives at the Horn relay on 2 pins.

if the horn switch works the relay ENERGIZES (closes)

and 12vdc arrives at the horn, and it honks

if while honking, the horn casing is 12vdc,

then means the horn is no longer grounded, a common happenstance.



if the relay dont energize check the horn ring contacts or connectors to it for continuity.

the relay can be tested, in the car.

like this.

honking

pin 2 and 5 are 12v

pin 1 = 0 volts

pin 4 is 12v, if 0v the relay is bad.



easy huh., ?

it is stuck in anti theft mode you try disconnecting battery and see if it helps. You will have to reprogram as well.

Seems like a steering wheel issue, slip ring contact

Could be a short in the steering wheel or column. Or a faulty horn relay.
You may need a wiring diagram to trace the circuits from the relay.
Usually the black wire is the ground and the green is voltage from the relay.

One honk means all doors are closed. Door ajar you have 2 honks telling you a door is open. My 03 Explorer has had the door ajar light on for awhile

you have either a blown fuse or the factory wire harness isnt connected to horn first check fuse owners manual will have location and description of fuses if ok retrace your steps when you hooked horn to new alarm you disconnected wire at horn or you cut the wire to access horn wiring

hope this helps
plz vote leave a comment if need more help reply

wiggle the horn on the colum if it stops then the spring on the horn pad has gone bad