Chasing parasitic voltage loss

[lumbee1]

I've been dealing with a parasitic voltage loss of a while now and I've had to use my National Luna battery controller to self jump several times. The other night walking past the truck I noticed the ignition ring light was on. I hadn't driven the vehicle in several hours and thought this to be a bit odd.

What controls that light? If I can't fix the circuit I may pull the connector or bulb, but that could mean something else related could still be activated.

The current starting battery is less than a year old. I have a second battery that's a few months old and an alternator that is also just a few months old. The original alternator was not charging the batteries at full voltage and had to be replaced. The second battery failed soon after and wasn't able to keep a charge.

 

[jonheld]

Passenger side kick panel. Remove the small green box.

 

[Malleus]

You can perform a little surgery on that control and replace the zener diode; that's what keeps the light on.

 

[george_tlc]

Ignition dimming relay

cheers,
george.

 

[lumbee1]

Passenger side kick panel. Remove the small green box.

Thanks. What does the small green box support in the Cruiser besides the ignition ring light?

 

[lumbee1]

Ignition dimming relay

cheers,
george.

Awesome! Thanks George. What is the effect of cutting out the zener diode?

 

[lumbee1]

Well... I think I see the problem. This board is nasty with corrosion. I had both a windshield leak and a overflowing sunroof drains that contributed to this mess. Both of the leaks have been resolved and the zener diode removed.

 

[CharlieS]

I had the same issue with the light staying on, so I just ditched that box, thanks to threads here on 'mud.

 

[george_tlc]

Removing the Zener doesn't affect operation, it's basically a level of circuit protection that should never be triggered.

And the green box just does the ignition ring light. Removed the ignition ring will just be like many other vehicles - unlit.

cheers,
george.

 

[tmxmotorsports]

If you still have issues check the factory amplifier behind the passenger side speaker beside the glove box had an issue with a customer's 80 even with the aftermarket radio not using the amplifier.

 

[lumbee1]

If you still have issues check the factory amplifier behind the passenger side speaker beside the glove box had an issue with a customer's 80 even with the aftermarket radio not using the amplifier.

I think I removed it many years ago but I will check. Thanks.

 

[jonheld]

Thanks. What does the small green box support in the Cruiser besides the ignition ring light?

Absolutely nothing. The ignition "key cylinder light relay" or "lamp control relay" (85965-60010) is shown in the interior light section in the EWD. That's its only function.