View Single Post
  #37  
Old 10-12-2018, 09:56 AM
wwii wwii is offline
Registered User
 
Join Date: Dec 2015
Location: California Central Coast
Posts: 123
Quote:
Originally Posted by JHZR2 View Post
I'm not so sure I should see 12v at pin 1. If I did, when the switch closed there would be a short to ground. The other pin of s/32 is ground. Or I guess there's a substantial resistance in series with the inductor in the low speed relay?
The relay coil does have some resistance, S32 controls the relay by switching ground.

I posted the other half of that diagram in your other thread - you can see that K10 pin 4 comes straight from a fuse and you should be able to see 12V at the switch connector. Anyway in that other thread you said you jumpered the switch and the fan came on so all's good.

__________________
1992 300SD 140.134 Sold
Reply With Quote