12v output from relay board

Rockin C Racing · Post by **Rockin C Racing** » Sun Mar 01, 2015 5:55 pm

Should the fuel pump and 12v+ distribution bar (used for injector 12v supply) have power to them when the switched 12v supply is OFF?

I've connected 12v supply from the battery, 12v from switch, and main ground to the relay board. While using a tester and the switch in the off position, there is still a 12v supply to the FP and the 12v+ distribution bar. When touching just the fuel pump wire to any of these connection points, I can hear the main relay click. When the switch is turned on, same exact results. The MS is not connected to the relay board at this time. Is something messed up on the relay board?

Matt Cramer · Post by **Matt Cramer** » Tue Mar 03, 2015 5:45 am

No, they shouldn't.

Rockin C Racing · Post by **Rockin C Racing** » Tue Mar 03, 2015 6:27 pm

Do you have any idea why this would be the case?

kjones6039 · Post by **kjones6039** » Tue Mar 03, 2015 7:50 pm

What schematic/manual did you follow when you wired the relay board?

Ken

Rockin C Racing · Post by **Rockin C Racing** » Wed Mar 04, 2015 8:01 pm

I didn't. I bought it already assembled (not from DIY). Problem solved, I ordered a new one fully assembled from DIY.

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12v output from relay board

12v output from relay board

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