How do turn signals work?

Jump to: navigation, search
(Notes)
(The turn signal switch)
Line 49: Line 49:
  
 
To understand how the switch works, we can view one side of it as an example. If you remove the steering wheel (and usually the horn assembly), you can see the turn signal switches. They are usually on a plastic base plate, driven by a plastic cam, and set off by two spring steel contacts that shift contact points when the base plate is activated with the turn signal arm.
 
To understand how the switch works, we can view one side of it as an example. If you remove the steering wheel (and usually the horn assembly), you can see the turn signal switches. They are usually on a plastic base plate, driven by a plastic cam, and set off by two spring steel contacts that shift contact points when the base plate is activated with the turn signal arm.
 +
 +
[[Image:Puller_steering_wheel.JPG‎]]
  
 
Let's look at the left side only for now.
 
Let's look at the left side only for now.
Line 73: Line 75:
  
 
The exact same wiring is true for the right side, with one exception: the brake lamp power is picked up from the left contact (daisy chained).
 
The exact same wiring is true for the right side, with one exception: the brake lamp power is picked up from the left contact (daisy chained).
 
  
 
==Functionality==
 
==Functionality==

Revision as of 15:37, 14 November 2008

Personal tools
Namespaces
Variants
Actions
Navigation
Categories
Toolbox