A turn signal switch is designed to activate the directional signals either right or left by the driver when desired.
The turn signal switch is made of several plastic parts and electrical connectors and may or may not be constructed with a wiring harness. When this part ages the plastic can become brittle and crack or the electrical connections can overheat and melt or become corroded stopping the switch operation. Mechanical failures can cause the switch to not cancel after the turn has been completed. A bad turn signal switch may cause the brake lights to stop working as well.
A directional or turn signal switch can cost between $24.00 and $130.00 depending on design and configuration which can be purchased on Amazon or RockAuto, labor time at the shop will range from 1.5 to 2.5 hours, if exact times or procedures are needed you can ask our experts to supply you with the information (free), or consult an online resource such as AllData DIY (pay), this guide and video will be sufficient in this specific case. In some cases the steering wheel will need to be removed so keep that in mind when doing the repair.
If you have a ignition switch off there is no danger of blowing a fuse when performing
the repair, some mechanics like to disconnect
the battery when doing any kind of electrical repair. In the example below the
steering wheel needs to be removed before the job can be done, the
airbag must be removed first.
The steering wheel removal is
next, on this application the steering wheel will slide off without the need of
a puller (mostly European vehicles). If there is a question as to which style your
car has please ask one of our experts.
Beneath the steering wheel the electrical system clock spring or spiral wire
is next, this part is designed to facilitate the steering wheel controls and horn
operation while the wheel is in motion, it can be held in place by using mounting
screws which will allow you to
remove the clock spring.
There can be a retainer plate and fascia pieces that need to be removed to access
the turn signal switch, this will vary and may not be needed for some applications,
simply grasp the pieces and remove them, they should pull right off.
Please watch this video of the job being done, then continue down the guide to glean additional helpful information.
Once the switch has been removed, inspect wiring connections and terminals for
corrosion, some turn signal switches are designed with a wiring harness attached
which will need to be disconnected near the bottom of the column before removal.
Gently place the bezel and new switch over the steering column, after pushing
the switch into place, insert and tighten the mounting screws or bolt(s). Re-install
fascia pieces, move the top plate back into position and gently lower it into the
column, reverse the previous steps to complete the job.
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