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how to check this relay?


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bosanci28 
Member - Posts: 11
Member spacespace
Joined: April 29, 2008
Location: California, United States
Posted: December 15, 2008 at 10:10 AM / IP Logged  

i have a 1982 merceds benz  and my windows and  windshield wipers went out,,

how can i check this?,,

has 5 legs  12v 20a/30a   

one side  3 legs   1leg-85  2leg-30  3leg- 30a,87

the other side 2 legs     1leg- 20a,87a    2leg-86  

some other numbers on it

sr9850

0015420219

then i have  2 circle numbers one side    01  and  82

in top the is  a diagram    nr#3085    868787a

thanks for any help

i am an idiot 
Platinum - Posts: 13,693
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 15, 2008 at 3:19 PM / IP Logged  
Using an ohm meter you should read very near 0 ohms when checking between terminals 30 and 87A.  Now apply 12 volts to 86 and ground to 85.  This will energize the relay.  Now you should read very near 0 ohms when testing from terminal 30 to 87.
bosanci28 
Member - Posts: 11
Member spacespace
Joined: April 29, 2008
Location: California, United States
Posted: December 15, 2008 at 4:05 PM / IP Logged  
will try that thank you
hotwaterwizard 
Silver - Posts: 1,350
Silver spacespace
Joined: December 11, 2003
Location: California, United States
Posted: December 18, 2008 at 10:29 PM / IP Logged  
Swap it out with another one that you know works.
John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

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