horn and cruse dont work please help

[expo dude]

when i cross the horn relay it sounds

 

[expo dude]

and that relay is new looks like it may be in the clock spring area i am unsure

 

[stamp11127]

Check voltage at pin 5 and ground with speed control connector plugged in, ignition on. You should have some voltage there, I would expect 12v but it may be less.

Since the horn sounded that tells us your problem is on the switched side of the relay.

 

[stamp11127]

The next test will determine if the problem is with the airbag sliding contact or horn switch. The airbag sliding contact connector is labeled C234. The drawing shows it is either on top of the steering column or on the right side. You'll need a jumper wire or test light and the horn relay in place.

Using the jumper or test light, ground the dark blue wire. This will complete the switch side of the circuit for the horn. If the horn sounds then you have power up to the connector for the sliding contact and can proceed with the following.

Next move the jumper to the connector C292, at the base of the steering column, and ground the same dark blue wire. This will test after the sliding contact but before the horn switch

Still at the connector for the steering column, move the jumper and ground the dark green/orange wire and push the horn button. This will test the first sliding contact and horn switch.

Moving back to the connector for the sliding contacts, ground the dark green/orange wire and again push the horn button. This will test the first sliding contact, horn switch and 2nd sliding contact.

Need to know if the horn sounds in all tests, or where it doesn't.

 

[expo dude]

ill be looking at it sunday again had a very busy week at work thank you

 

[stamp11127]

Just as a reminder, remove the driver airbag before probing the wiring.

 

[expo dude]

at pin5 with the plug plugged in and key on there is voltage of 8.5 on the cruise control servo

when grounding the dark blue wire and grounding it i got sound from the horn

after the plug going further up the colum towards the steering wheel i got the horn to sound by grounding the dark blue wire


when grounding the dark green oarnge wire and pressing the horn button i didnt get sound

 

[expo dude]

could it be possible that there is a ground in the dash that could be missing or a steering column ground that may be missing

 

[stamp11127]

The test indicates your problem is after the first sliding contact specifically the horn switch or wiring to them. The next thing to check is for power at the horn switch and the horn switch for continuity.

You have the right idea about a "missing" ground. It hasn't gone anywhere, it just isn't completing the circuit.

 

[expo dude]

ok ill look at that later this evening for power at the switch and i believe i can test continuity with my ohm meter

 

[expo dude]

i checked for voltage at the connector that leads to the horn and there is 12.5 volts at the blue wire there is 2 blue wires that are at the same wire connecotr on the harness that plugs up the horn and there is 2 green oarnge wires on the other connecting wire that has no voltage.there is only one plug that goes to the horn with only 2 total connector wires but a total of 4 wires. the blues are combined and the oarnge green are combined

 

[expo dude]

when the ohm meeter is set to 2000k and i push the horn button i get a reading in like 120-60 area

 

[expo dude]

ok i did your tests again on the horn button when i ground the green oarnge wire and push the horn button i get it to sound

 

[expo dude]

also at the steering wheel grounded out the blue wire right at the connector after the clock spring and got sound grounding the same blue wire right behind the air bag and horn switch but not with the switch just checking to see if i got sound by grounding out the same blue wire after the sliding clock spring

 

[stamp11127]

I'm going to assume that the two blue wires are on one side of the horn switch with the green/orange connecting to the other side of the switch. Since the horn sounded when you grounded the green/orange wire and pressed the horn button, your problem lies in that wire.

Where did you ground it in relation to the steering column? By the steering wheel or towards the floorboard?

 

[expo dude]

i grounded the blue wire to the steering wheel metal its self and got sound then to a ground point on the kick panel with the blue wire that connects to the harness before going to all the switches

 

[expo dude]

what if i ground that green oarnge wire to the kick panel grounding area would that take care of my trouble i know it sounds the horn but to trace that wire down i would have to take the dash out and it seems to be alot of work to go through at the moment in time

 

[stamp11127]

It depends on where you originally grounded the green/orange wire. The circuit runs through the sliding contacts twice, once coming in and once going back out. If your problem is the sliding contacts it is better to replace them.
The way to tell if it is the problem is to ground the green/orange wire at the base of the steering column and press the horn button. If the horn sounds the contacts are fine, if it doesn't then you need to see what is going on with them. It could be a broken wire, worn contacts etc.

 

[expo dude]

grounding at the base it sounds through the sliding contacts

 

[expo dude]

with the horn button