I'd like to test a relay used on a VW Vanagon to troubleshoot a cranks, but will not start condition.
The numbers marked on it, followed by the DIN definitions, are:
30 - direct line from battery +
87 - Input (under the heading "Normally Closed Relay Contact & Changeover Circuits")
then, there are 2 terminals listed under the heading "Switching Relay":
85 - Output: Actuator (Negative Winding End or Ground)
86 - Start of Winding
The diagram on the face of the relay indicates there is a diode in there, so I want to make sure I don't blow it.
1st - can I trust VW to follow the DIN specs? (I ask b/c they have a known habit of going their own way with wire color coding, i.e. brown wires)
2nd - my plan is to put a multimeter on resistance/continuity mode across two terminals, and then apply +12 V - but I am not sure if pin 85 is ground or 87 is?? or what...
my guess is that pin 85 is ground and the big "24" they stamped on there obscures the other end of what would be a normal schematic for a relay - but it's a Foolkswagon, so who knows WTF they did...
any ideas?