The indicator wiper stalk is attached to the steering column via a multi-connecting plug, and is operated by the driver using a lever. When the lever is pushed, the wipers that are located on the indicators start moving in an arcing motion to clean dirt from the vehicle’s indicators with the aid of washing fluid from the washer system. The indicators wipers are powered by a motor consisting of a series of 4 bar linkages.
Problems with the indicator wiper stalk can be caused through general wear and tear through consistent use. Many modern vehicles will display an error message or give warning if there is an issue with any element of the wiper system and it may be possible to diagnose the cause of stalk failure by using a circuit tester.
Other signs of indicator wiper stalk failure could be noticed by a ‘loose’ lever when attempting to operate the indicator wipers, which can be caused by a broken stalk or signs of burn out on the electronic components. A failed indicator wipe stalk may alternatively be too stiff to move easily which can cause the indicator wipers to stop functioning.