Request for help: diagramming a relay

[CTScott]

How about just eliminating the ACC cut relay and jumping the output contact terminals? The service manual says that its purpose is just to keep the clock and meter from flickering during cranking.

You could use a jumper wire with male spade terminals. Jump 3 to 4.





ACC Cut Relay.jpg

[BailOut]

Originally Posted by CTScott

How about just eliminating the ACC cut relay and jumping the output contact terminals? The service manual says that its purpose is just to keep the clock and meter from flickering during cranking.

You could use a jumper wire with male spade terminals. Jump 3 to 4.

That sounded like a great and simple idea but it did not work. I jumped 3 to 4 to no effect. The interesting thing is that the clock works just fine (no flickering) with or without the ACC cut relay or 3-4 jumper in place.

Thanks for trying, though. Tomorrow afternoon I'll try wiring in a relay.

[CTScott]

Originally Posted by BailOut

That sounded like a great and simple idea but it did not work. I jumped 3 to 4 to no effect. The interesting thing is that the clock works just fine (no flickering) with or without the ACC cut relay or 3-4 jumper in place.

Thanks for trying, though. Tomorrow afternoon I'll try wiring in a relay.

Try 3 to 5 then. I wasn't sure if the NO or NC contacts were being used.

[BailOut]

Originally Posted by CTScott

Try 3 to 5 then. I wasn't sure if the NO or NC contacts were being used.

I thought of the same based on the diagram you attached but pin 5 isn't used in the ACC cut relay's socket. It's an empty space.

[CTScott]

Originally Posted by BailOut

I thought of the same based on the diagram you attached but pin 5 isn't used in the ACC cut relay's socket. It's an empty space.

OK. That makes sense - The EWD shows 3-4 being the contacts.

If you put a voltmeter on the power wire, do you actually see it still cut out with the jumper in place (or just sag to below 12V)?

Looking at the EWD, with that jumped, power should definitely still be applied to ACC during cranking.