Toyota
Toyota Land Cruiser
 Service Manual
Body Electrical
Horn system

INSPECTION

1. INSPECT HORN SWITCH

(a) Disconnect the negative (-) terminal from the battery.

(a) Disconnect the negative (-) terminal from the battery.

(b) Remove the left and right covers from the steering wheel.

(c) Using a torx socket wrench, loosen the 2 bolts.

(d) Pull up the horn pad and place it on the steering column, as shown.

HINT: Do not disconnect the connector from the horn pad.

(e) Disconnect the connector from the slip ring.

(f) Check that no continuity exists between terminal 6 of the

(f) Check that no continuity exists between terminal 6 of the connector and body ground.

(g) Check that continuity exists between terminal 6 of the connector and body ground when the horn contact plate is pressed against the steering spoke assembly.

If continuity is not as specified, repair or replace the steering wheel or wire harness as necessary.

(h) Install the horn pad in place and using a torx socket wrench, torque the 2 bolts.

Torque: 7.1 N·m (72 kgf·cm, 62 in.·lbf)

(i) Install the left and right covers.

(j) Connect the negative (-) terminal to the battery.

2. INSPECT HORN OPERATION

Connect the positive (+) lead from the battery to the terminal

Connect the positive (+) lead from the battery to the terminal and negative (-) lead to the horn body and check that the horn blows.

If operation is not as specified, replace the horn.

3. INSPECT ENGINE ROOM R/B RELAY CIRCUIT (See Pase BE-15 )

HINT:

HINT: The horn relay is built in engine room junction block. Also the relay is constructed with a relay block that is in the junction block as a unit. To disconnect the wire harness connecting with relay block is impossible. If the relay has a malfunction, replace it with junction block assembly wire harness together.

LOCATION

Interior light system

    More about Body Electrical:

    Antenna

    Audio system

    Body electrical system

    Combination meter

    Combination meter

    Compass

    Defogger system

    Engine immobiliser system

    Fog light system

    Garage door opener system

    Headlight and taillight system

    Horn system

    Interior light system

    Ignition switch and key unlock warning switch

    Multi display

    Overhead junction block

    Power door lock control system

    Power window control system

    Stop light system

    Sliding roof system

    Troubleshooting

    Turn signal and hazard warning system

    Wiper and washer system

    Wireless door lock control system

    Toyota Land Cruiser Service Manual / Body Electrical / Horn system

    Toyota Land Cruiser Service Manual

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