Examination (pic. P:22)
If the horn stops working, check the fuse first. To do this, the easiest way is to turn on the reverse with the ignition on - if the reverse lights light up, then the fuse is good. Do not replace a blown fuse until the cause of the problem has been identified and corrected.
If the horn starts to work constantly or turns on when the steering wheel is turned, disconnect the wire from the battery and remove the appropriate fuse.
Troubleshooting is carried out in the following order:
1. Disconnect the wire "masses" from the battery.
2. Wring out the signal button from a steering wheel and disconnect wires from the button. Remove the three screws that secure the signal switch to the button and check the switch. If the switch is OK, install it on the button, and the button on the steering wheel.
3. Check up a backlash between the bottom edge of a nave of a steering wheel and the top edge of a steering column switch - a backlash should be 2-4 mm. Insert new fuse (if it was taken) and check signal operation.
4. If the signal does not work, check the connection of the signal with "weight" - to do this, disconnect the brown wire and connect the released contact with "weight" control wire (pic. P:22). If at the same time the signal does not work, then the signal is faulty, or voltage is not applied to the signal.
5. Check the voltage supply to the signal by connecting a test lamp between the black/yellow wire and "weight" - if the lamp is on when the signal button is pressed, then the signal itself is faulty. If the lamp does not light up, then the wire connecting the sound signal to contact A11 of the relay and fuse board is broken - find and repair the break.
Replacement
To remove the horn, disconnect the wire from the battery, then disconnect the wires from the horn (remember the color and order of the wires), turn away bolts of fastening and remove a signal.
When installing the signal, make sure that its body after tightening the bolts does not touch the car body.
Visitor comments