Complete tear down of the drivers side fuse panel

[Bull Moose 100]

I replace the drivers side with a new unit after having both AHC voltages fall to such a low point that the AHC stopped operating. I think it needs 10 to operate and I was down at 7.8 for both voltages.

I decided to tear fuse box apart to see if I could find an issue. I did not see anything obvious. I will test the relays under load if I get a chance and post it here later. I don’t have me volt meter on hand tonight

Here are pics

I am pointing to the pin that goes to AM1 (and several other fuses) from the defog relay, this copper connection and the other could become loose over time, mine slid off with little effort but was still fairly tight

Replacing my fuses and wiggling them would sometimes get the AHC voltages high enough for the system to operate and stop flashing off.

 

[Bull Moose 100]

I replace the drivers side with a new unit after have both AHV voltages fall to such a low point that the AHC stopped operating.

I decided to tear fuse box apart to see if I could find an issue. I did not see anything obvious. I will test the relays under load if I get a chance and post it here later. I don’t have me volt meter on hand tonight

Here are pics

View attachment 3998512

View attachment 3998513

View attachment 3998515

View attachment 3998516

View attachment 3998517

 

[badlander]

What year is this from?

 

[Bull Moose 100]

2

What year is this from?

2003 Lx470

 

[Trollhole]

Usually it's water intrusion that kills the fuse blocks.

 

[badlander]

I'm assuming that is the body computer incorporated into it?
That looks like one pricey unit........
Any way to mount a protective shield out of aluminium foil or something to preempt water damage.