Headlight Leveler Reset ECU Question

Howdy,

In the past (several times) I have successfully rebuilt the headlight Leveler on my 2004 Prius to resolve the problem of the warning light coming on. I have never had to reset the related ECU to clear the warning light.

After a very wet winter in Northern NV it came on again last week and I thought I would try one of the eBay replacement units which are only about $20.00 shipped.

The replacement unit looked identical to the original unit and I swapped it out in about 15 minutes including cleaning the plug and using dielectric grease. Unfortunately the warning light has stayed on.

I found these instruction to reset the related ECU.


I have tried all four combinations noted below and the warning light is still on.

I need to clarify a few points:

1 - Should the car be on or off during the procedure?

2 - Should I hold the short on pins 4 and 8 while I'm flashing the lights or short and release the pins and then flash lights?

All info Greatly Appreciated!

Thanks,
Tom

 

Thanks jadziasman,

I am aware of the reset you mention however I want to specifically reset the ECU associated with the leveler and not loose all of my custom setting. The mechanical system is working smoothly and correctly.

I am also interesting in learning how to correctly apply the manuals.

Tom