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Connect the horn circuit correctly.
Operate
the horn successfully.
Instruments made from animal horns have existed since ancient times. They were primarily used as signaling devices.
Automotive Wires
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Electrical pliers
Long nose pliers
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Screw drivers
Test light
Battery 12 volts
Electrical mock-up/Vehicle
1. Prepare the necessary tools and materials needed.
Note: Horn relay has corresponding number, these are 87, 86, 85 and 30.
2. Connect a wire to the terminal of the horn and other end of the wire to the 87 terminal of the horn relay. The other terminal of the horn is connected to the vehicle body that serves as ground.
3. Connect the 86 terminal of horn relay to the push button switch. The other terminal of the push button switch is connected to the ground.
4. Splice the wires of 30 and 85 terminals of horn relay and connect them to the fuse load terminal. Connect the other end of the fuse source terminal to the IG or ACC terminal of the ignition switch.
5. From the B terminal of the ignition switch, connect a wire to the terminal of the ammeter. The other terminal wire of the ammeter is connected to the positive (B+) terminal of the battery.
6. Connect the negative terminal of the battery to the vehicle body that serve as ground.
The connection can be made in a reverse manner from step 5 to step 2 except step 6 which is usually done after checking the wiring connections.
1. Prepare the necessary tools and materials needed.
2. Connect a wire to the terminal of the horn and other end of the wire to the 87 terminal of the horn relay. The other terminal of the horn is connected to the vehicle body that serves as ground.
3. Connect the 86 terminal of horn relay to the push button switch. The other terminal of the push button switch is connected to the ground.
4. Splice the wires of 30 and 85 terminals of the horn relay and connect them to the fuse load terminal. Connect the other end of the fuse source terminal to the IG or ACC terminal of the ignition switch.
5. From the B terminal of the ignition switch, connect a wire to the terminal of the ammeter. The other terminal wire of the ammeter is connected to the positive (B+) terminal of the battery.
6. Connect the negative terminal of the battery to the vehicle body that serves as ground.
5. From the B terminal of the ignition switch, connect a wire to the terminal of the ammeter. The other terminal wire of the ammeter is connected to the positive (B+) terminal of the battery.
4. Splice the wires of 30 and 85 terminals of horn relay and connect them to the fuse load terminal. Connect the other end of the fuse source terminal to the IG or ACC terminal of the ignition switch.
3. Connect the 86 terminal of horn relay to the push button switch. The other terminal of the push button switch is connected to the ground.
2. Connect a wire to the terminal of the horn and the other end of the wire to the 87 terminal of the horn relay. The other terminal of the horn is connected to the vehicle body that serves as ground.
6. Connect the negative terminal of the battery to the vehicle body that serves as ground.
A. electrical pliers
B. long nose pliers
C. screw driver
A. automotive wire
B. screw driver
C. test light
C. test light
A. automotive wire
B. electrical pliers
C. long nose pliers
C. long nose pliers
A. electrical pliers
B. screw driver
C. test light
B. screw driver
References:
Technology & Livelihood Education– Grade 10
Learner’s Material
First Edition, 2013
Development Team of the Learner’s Material
Consultant:Alfredo L. Alcala Jr., Lorenzo A. Ladia and Famy L. Pepito
Authors: ROBERTO S. DAQUIL FERNANDO N.MAGALANG
HT VI, Manila High School HT III, C.M. Recto High School
DepEd – Manila DepEd – Manila
Editors: Lando T. Guzman, Lynette T. Guzman, Eugenio Masilungan
Reviewers: Arnel C. Anonical, Joel G. Castillo, Arnold M. Mendoza, Marvin A. Mendoza, Lino A. Olit, Atanacio D. Pagkaliwangan, Benjie R. San Juan, and Rainbee Priol
Illustrators:
Subject Specialists: Albert Erni, James Julius M. Liquigan, Owen S. Milambiling
Management Team: Lolita M. Andrada, Jocelyn DR Andaya, Bella O. Mariñas, and Jose D. Tuguinayo Jr.