Steering column switch: common defects and their signs

1. Wear
   • The window wipers are not operating (in all modes or only in the intermittent mode).
   • The wiper blades are not moving at turning on of the window wipers.
   • The turn indicators are not turning on or off.
   • The headlights can not be switched to high beam mode.
2. Oxidation or closure of the contacts
   • Burnt smell is noticeable in the cabin.
   • Sometimes smoke comes from the component, even burning is possible.

How to repair or replace steering column switch?

Usually, replacement of the turn indicator is not performed. In some cases, it is possible to clean oxidized contacts, but this can be performed only if there were no short circuit and mechanical damages of contacts and wiring are absent. In order to make sure, you need to disassemble the switch and inspect it. If you are not sure you are able to perform this properly on your own, apply to a service station, as errors, made during repair may lead to fire.

In most cases it is recommended to replace a defective steering column switch. It is better to entrust this procedure to car station specialists, as special tools are often necessary to perform these works. In order to replace the part, specialists cut off the power supply from the battery, demount the horn decorative cover from the steering wheel and its contact plate, then unscrew the nut, fastening the steering wheel and remove it using a special remover tool. After this, the steering column cover is removed in the switches and ignition switch area, wires socket is disconnected from the steering column switch and demounted. After installation of a new part assembling is performed in the reverse order.