how to check this relay?

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bosanci28

Member - Posts: 11

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

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

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.

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bosanci28

Member - Posts: 11

Joined: April 29, 2008

Location: California, United States

Posted: December 15, 2008 at 4:05 PM / IP Logged

will try that thank you

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hotwaterwizard

Silver - Posts: 1,350

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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how to check this relay?

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