2007 maxim 1900sr3 electrical issue

[Drifter001]

So we were doing some work on our boat. We hooked batteries up and started to do a test run with earmuffs and everything worked fine, bist started no issues other than needing a jump due to low batteries. Took batteries out and out on charger, one was bad so we replaced. Put boat back together and hooked new batteries up. All accessories work but when we turn the key, we get no sound from the ignition, no guages, and no start or crank. Checked fuses under the console and they looked fine. Any suggestions?

[mmwjr]

Check to see if you have 12V on the B terminal of the ignition switch. Also find the 20 pin connector on the engine harness and inspect the contacts for corrosion. But first you should verify the 50 amp breaker on the engine is set and that there is 12V on both terminals.

[Drifter001]

Originally Posted by mmwjr

Check to see if you have 12V on the B terminal of the ignition switch. Also find the 20 pin connector on the engine harness and inspect the contacts for corrosion. But first you should verify the 50 amp breaker on the engine is set and that there is 12V on both terminals.

I’ll check the points with a multimeter in a bit. The 50a was tripped I think. We pressed the little red button and it clicked but still had no joy on anything on the dash

[Drifter001]

Originally Posted by mmwjr

Check to see if you have 12V on the B terminal of the ignition switch. Also find the 20 pin connector on the engine harness and inspect the contacts for corrosion. But first you should verify the 50 amp breaker on the engine is set and that there is 12V on both terminals.

So it looks like there’s zero power getting to the ignition switch

[mmwjr]

Is there power at the fuse panel under the helm? Is there power on both sides of the engine breaker?

[shrew]

If this all worked before, you missed something during reassembly.