Hi! good morning, now i will made an article about How To Troubleshoot A Chevrolet Tahoe Horn
The horn on a Chevrolet Tahoe is powered by the operation of a relay. This means that the power for the horn is routed from the fuse block under the hood. Power from the fuse block goes to the horn relay. The commonly open end of the wire is the one that goes into the speaker and the speaker through the frame is grounded. Read on and learn how to fix horn problems on a Chevrolet Tahoe.
The power supply to the activation terminal of the relay comes from the Body Ride Control or on the accessory side of the contact knob. The negative side of the relay goes through the column to the clock spring. The clock spring is also used for the air bag system. The cable then continues to the steering wheel air bag, where it is secured. As the air bag is depressed, it causes the cable to ground, activating the relay which, at the same time, activates the horn.
Steps to Troubleshoot a Chevrolet Tahoe Horn Problem
To fix horn failure on a Chevy Tahoe follow these steps:
1. Lift the cover up and remove the fender fuse box cover.
The quickest way to establish the problem area is to check the operation of the horn relay. You must activate the switch and ask a person to activate the horn while you put a hand on the horn relay.
Each time the horn or pad control is actuated, the relay has to make a perceptible click and you should also feel that it is being activated. If the horn relay is firing then the horn itself needs to be checked, now if the relay doesn’t work then the fuse needs to be checked and from there to the steering wheel airbag floor.
2. Check that the speaker is on when activated.
Remove the speaker connector and check the connector with the help of a voltmeter, then examine the connector with the red wire from the voltmeter and ground the black wire.
Have a helper press the horn and watch for it to light up while the horn is pressed. If there is power then the horn is faulty and needs to be replaced, if not then there is power present, the issue is with the wiring running from the relay itself to the horn.
3. Check the horn switch to see if it is making contact with a ground.
You have to disconnect the negative cable from the battery, then you have to pause for 15 minutes, this pause is for the circuits to rest a bit before continuing.
4. Remove the air bag by removing the two socket head cap screws at the rear of the steering column.
Gently lift the air bag up and disconnect the two speaker ground wires connected to the air bag. Disconnect the multi-wire connector from the air bag clock spring and place the air bag on the seat.
5. Make negative battery cable connection.
Flip the ignition switch and touch one of the two black horn ground wires to the steering column, if the horn blows, the problem is with the air bag or connection. Now if the horn doesn’t blow then the problem is a bad clock spring and the clock spring will need to be replaced.
Caveat
Handle the airbag carefully as the slightest bit of static from your body could cause the airbag to deploy.
The horn on a Chevrolet Tahoe is powered by the operation of a relay. This means that the power for the horn is routed from the fuse block under the hood. Power from the fuse block goes to the horn relay. The commonly open end of the wire is the one that goes into the speaker and the speaker through the frame is grounded. Read on and learn how to fix horn problems on a Chevrolet Tahoe.
The power supply to the activation terminal of the relay comes from the Body Ride Control or on the accessory side of the contact knob. The negative side of the relay goes through the column to the clock spring. The clock spring is also used for the air bag system. The cable then continues to the steering wheel air bag, where it is secured. As the air bag is depressed, it causes the cable to ground, activating the relay which, at the same time, activates the horn.
Steps to Troubleshoot a Chevrolet Tahoe Horn Problem
To fix horn failure on a Chevy Tahoe follow these steps:
1. Lift the cover up and remove the fender fuse box cover.
The quickest way to establish the problem area is to check the operation of the horn relay. You must activate the switch and ask a person to activate the horn while you put a hand on the horn relay.
Each time the horn or pad control is actuated, the relay has to make a perceptible click and you should also feel that it is being activated. If the horn relay is firing then the horn itself needs to be checked, now if the relay doesn’t work then the fuse needs to be checked and from there to the steering wheel airbag floor.
2. Check that the speaker is on when activated.
Remove the speaker connector and check the connector with the help of a voltmeter, then examine the connector with the red wire from the voltmeter and ground the black wire.
Have a helper press the horn and watch for it to light up while the horn is pressed. If there is power then the horn is faulty and needs to be replaced, if not then there is power present, the issue is with the wiring running from the relay itself to the horn.
3. Check the horn switch to see if it is making contact with a ground.
You have to disconnect the negative cable from the battery, then you have to pause for 15 minutes, this pause is for the circuits to rest a bit before continuing.
4. Remove the air bag by removing the two socket head cap screws at the rear of the steering column.
Gently lift the air bag up and disconnect the two speaker ground wires connected to the air bag. Disconnect the multi-wire connector from the air bag clock spring and place the air bag on the seat.
5. Make negative battery cable connection.
Flip the ignition switch and touch one of the two black horn ground wires to the steering column, if the horn blows, the problem is with the air bag or connection. Now if the horn doesn’t blow then the problem is a bad clock spring and the clock spring will need to be replaced.
Caveat
Handle the airbag carefully as the slightest bit of static from your body could cause the airbag to deploy.
