Indicator Light Switch replacement & repair made easy

The vehicle's direction indicators are controlled by the driver using a steering column mounted indicator stalk. This multifunction part can often be part of the vehicle's headlight control as well, so it’s correct operation is critical. Depending on which way the stalk is moved, it will turn on the left or right indicator bulbs accordingly.

At the base of the stalk are various electrical connections and they work in a similar way to a household light switch. Position the stalk in a certain way and the connection to that circuit is made and the system has a connected power circuit, thus illuminating the bulbs on that circuit. As these connections need to be clean and are reliant on the connectivity of the components, any ingress of dirt or wear of them can result in the unit not working.

Issues are usually pretty apparent. When the stalk is used, the indicators fail to operate unless the stalk itself is manipulated to make the connections. Sometimes though, they fail to operate at all in either direction no matter what you try to do. This is a very common occurrence on Peugeot and Citroen models especially.

As direction indicators are paramount to road safety, their correct operation is required by law. Therefore as soon as an issue arises, it needs to be rectified with immediate action.

Most vehicles will go through their life without ever needing a replacement, however, as mentioned earlier, some models in the PSA group are susceptible to problematic stalks.

There is little that can be done to prevent issues from occurring, however heavy handed operation will of course lead to issues.

Because the indicator stalks are usually steering column mounted, they are secured in place behind the steering wheel, which will require its removal. As the steering wheel will contain an airbag, this will need disarming prior to any replacement work.

• The mechanic will test the indicator stalk for its operation.
• Mechanic will ensure the electrical system is intact (fuses, wiring, bulbs etc).
• If the indicator stalk is confirmed as the issue, the mechanic will proceed with its replacement.
• Mechanic will disarm the steering wheel airbag, usually by means of either removing the SRS system fuse or by disconnecting the battery.
• The steering wheel airbag will be removed followed by the steering wheel itself
• The indicator stalk is replaced
• Mechanic will then re-assemble the parts and reconnect the SRS (airbag) system
• Mechanic will clear any SRS error codes and test the stalk