Headlight Cleaner Works Simultaneously With Windscreen Washer

[rns]

I find a bit annoying that the headlight washer works once or more when starting washing the windscreen while headlights are on (My Rx have all the time on lights, obligatory daytime driving lights on setup). It feels it just wastes the fluid when it is most needed.

Easy solution could be remove the connector fromt the washer motor but that would disable the headlight washer switch is center console too. Which I do like to use when the lamp really are dirty.

I looked the wiring diagrams for the solution. Could it be that easy that I think, just to disable one wire near connector IE3 (placement shown in Lhd car)? Would it take out the information that headlights are on or how?

Anyone done this, any advises for the function of those Ecus? Thanks

[ColinBarber]

Don't the headlights need to be on even for the manual wash button to work? Therefore if you remove the control signal it will never work.

[rns]

Don't the headlights need to be on even for the manual wash button to work? Therefore if you remove the control signal it will never work.

I just tested and they work without headlights with parking lights on. I can't test totally without lights as when my light switch is off position, the headlights are on for that daytime driving light need.

[billgatesisaconman]

It is annoying ... but I suppose it stops them seizing up, I don't think I would ever use them if they were solely on a seperate control

I must admit it is one of the 4 things that irritate me, the others being innadequate reversing lights, folding mirrors aren't automatic & not being able to select windscreen & forward facing vents at the same time ... oh & not being able to close the center vents ... but It's not the end of the world ...

[ColinBarber]

I just tested and they work without headlights with parking lights on. I can't test totally without lights as when my light switch is off position, the headlights are on for that daytime driving light need.

Sorry didn't spot you weren't in the UK. The UK 400h vehicles don't have DRLs.

You could try disconnecting the wire but it would probably be the same outcome. Without the sidelight/parking light signal it wouldn't wash, so with the wire disconnected it will never work.

[Parrot of Doom]

If the windscreen is dirty then chances are so are the headlights. Clean headlight lenses is important with HID lighting - that's why the washers work together.