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Monsterman
Posted on Thursday, June 07, 2012 - 02:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm in need of testing the right turn switch on my S2 because neither my front nor rear turn signal works. The left side works fine and I've tested the bulbs on the right side with the wires of the left blinkers so I know they work properly. I was told I can use a voltmeter to test the switch and am wondering if someone can walk me through, step by step on how to do this? Thanks.
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Sparky
Posted on Thursday, June 07, 2012 - 05:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What I would do is take apart the right hand controls to get to the inner wires and specifically access to the terminals of the switch.

Set the multimeter to read continuity (ohms on the R x 1 scale). What you are going to do is probe the terminals of the switch - there should be 2 terminals with wires.

Knowing what continuity looks like on the meter by touching the 2 leads together, put the leads on the 2 terminals on the switch.

1st test: The meter should read like an open circuit.
If it does, the switch is good so far.
If it doesn't, the switch is likely shorted or there is some other problem (unlikely).

2nd test: press the switch button with the meter still on the switch. The meter should read steady continuity (0 ohms).
If it does, then you know the switch is good and the problem is with the wires leading from the switch to wherever they go.
If it still reads open or anything other than steady continuity with the switch button depressed, then it's likely the switch is bad or contaminated and you've probably found the problem.
If the meter shows a high resistance (more than 0 ohms but less than infinity) the switch contacts may be either worn out or contaminated with grime. If this is the case, the switch internals may possibly be cleaned with electrical contact cleaner, but it's best to replace the switch.
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