geline
Joined: 05 May 2006
Posts: 90
Location: Philippines
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 Posted: Thu May 25, 2006 11:43 am Post subject: Determining switch types |
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To determine what type of door lock switch you are working with, follow these three steps:
1. Locate the harness plugged directly into the back of the door lock switch. If there are no external door lock switches, you will most likely have a vacuum type system or an *aftermarket door lock system with relays, or have an added actuator that needs relays.
2. Next, with your multi meter, probe each of the leads in this harness and write down the readings during lock, unlock, and at rest positions of the switch. Be sure to measure for continuity to ground as well as positive DC voltage and pay close attention to any changes in voltage, resistance, and the duration of pulses. If the switch is illuminated when the lights are turned on, find this lead(s) first and ignore it.
http://www.the12volt.com/doorlocks/doorlocks.asp#2w |
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