Horn doesn't work 1999 Chevy Blazer w/airbag system
Checked the fuse and relay and all are okay. Hot wired horn and it works. I am leading to removing the cover in the middle of the steering wheel and noticed a warning posted about leaving keys out for 30 minutes or more! Can I disconnect the battery and achieve the same Safe result?
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If your not going to fix the horn plate in the column. Wiring a horn button is easy. You need a hot lead from the fuse panel to the after market button and from the other side to the horn button under the hood unit (grill area). Most horn unit are self grounding.
check for blowed fuse or bad relay, you can hook test light to see if horn getting power when you press horn pad if fuse and relay okay,remove horn and hot wire it if it blows, more likely horn pad with airbag in steering wheel bad,if horn pad bad you have to replace whole airbag with with horn pad as a unit.if horn dont blow when hot wired then horn it self is bad.
if your horns work with alarm using remote, then fuse and relay good if you hear no horn using remote set off alarm,and horn pad dont work, replace horn fuse and relay, if both okay, you have to replace the whole horn pad with air bag in steering wheel both horn control pads and airbag is one assembly.
check horn relay.when you say replace did you replace horn control with airbag in steering wheel or did you replace horn.if you replace horn and fuse and relay okay problem is in the horn pad with airbag in steering wheel you have you replace it before horn will work again.
LOOK UNDER THE LOWER AIR DEFLECTOR FROM BELOW THE RADIATOR. IF YOU HOT WIRE CAR HORN AND IT WORKS.YOU HAVE TO REPLACE THE WHOLE AIRBAG IN STEERING WITH HORN CONTROL BUTTONS.YOU NEED TO DISABLE AIRBAG IN STEERING WHEEL WHEN REPLACING AIRBAG AND HORN CONTROL BUTTON PAD.JUST TURN OFF RADIO FIRST, THEN DISCONNECT REMOVE THE NEGATIVE BATTERY CABLE.WAIT 20 MINUTES BEFORE WORKING ON AIRBAG AND HORN PAD IN THE STEERING WHEEL.
I am assuming you have checked the Fuse Box under the hood for the Horn Fuse and / or the Horn Relay and made sure both are good?
You can always try the steps outlined in this video to replace the horn pad. to see if this is your issue if you have exhausted all of your other resources.
Or You can try these steps to further diagnose your issues:
The horn relay on ZX2's is located underneath the dashboard on the
drivers side. There are several relays located there - identify the horn
relay by the "clicking" sound it makes when the horn is pressed. The
likelyhood that you have a bad relay is minimal. Start by checking the
horn fuse (the fuse box is located under the dash on the driver side).
Next, check the relay. If the relay is making a clicking noise, it is
probably OK. The next thing to check is the horn itself. it is located
on the passenger side of the vehicle, up underneath the front bumber.
Most instructions say to remove the bumber cover to get to the horn, but
this is not neccesary. In my experience with Escort horn problems, the
problem has been with the horn "switch", a wafer thin piece of plastic
that lies between the steering wheel cover and the airbag assembly.
Below are instructions for replacement of this switch - don't be
intimidted by the procedure - it is not difficult.
You cannot buy a horn switch at a dealer - they tell you that the horn
switch is part of the airbag assembly, which cost $450 plus.
Understandably, Ford doesn't want people "messing around" with airbags.
Go to a junk yard - you can eazily find and remove the horn switch from
an Escort who's airbags have already deployed. I bought two of them for
$5. Identify and remove the junkyard horn switch by reading step 7
below. This is an eazy fix if you follow these instructions. Should take
about 10 minutes. I replaced my "stuck" 97 Escort horn switch as
1) Disconnect negative battery cable, wait for at least 1/2 hour for
residual power discharge before proceeding to net step (IMPORTANT!).
This will disable the airbag. Neglecting this step could cause serious
injury or death!
2) Remove two 10mm bolts directly behind the steering wheel - one on left, one on right. These secure the airbag unit.
3) carefully lift the airbag unit out of the steering wheel.
4) remove two small star-screws at bottom of airbag unit using star end
screw driver - the horn wires enter the airbag unit next to these screws
5) pry the airbag cover (this is the front part of the steering wheel
cover with the horn picture on it) off of the plastic tabs of the airbag
unit, on the left & right sides - should come off very eazily.
6) now you can lift the airbag cover up (there are three rivets that continue to hold the top portion of the cover in place)
7) the horn switch, which is covered by a thin layer of dark foam, is a
very thin plastic pad with two wires coming out (same wires as step 4).
You can see wafer thin copper strips inside the plastic. The switch is
held in place by three small plastic tabs. Remove the switch and
disconnect the wires at the red connector inside the steering wheel.
8) replace horn switch with junkyard switch
9) re-assembly is the reverse of the removal.
This procedure should apply to 97 through 2002 Escorts, including the ZX2. Hope this helps someone save some money.