H4 switch for electronic transfer case control on HZJ76 (1 Viewer)

[Hilux safari]

Recently I realized (while struck in 2 feet of mud) that my transfer case does not shift into 4WD. This cruiser (2002 HZJ76 Japanese market) is new to me and I never had a solenoid controlled transfer case before. After going nuts with the manual front hub locks, I took apart the dashboard switch just to notice that it’s not connected to anything

This is what I have: the solenoids on the firewall are in place, seem to be connected and all vacuum lines are there. In the dashboard I had an H4/Hub lock double switch. Took apart the dash and found a loose connector, but it doesn’t match the switch.

Can someone tell me if the connector I’ve found is in fact the right one coming from the solenoids. If so, i obviously have the wrong switches. If not, then I need to dig deeper in the dashboard to look for another loose connector and figure out what this one does.

 

[roscoFJ73]

Thats a used one for sale, certainly looks the same Does your switch have a part number somewhere? I think there should be another connector there down below. I remember on 73 series, the connection was never tight.

 

[Hilux safari]

What I’m discovering is that the connector is for another type of H4 switch.

Does anyone have the Toyota part number for this:

 

[joekatana]

What I’m discovering is that the connector is for another type of H4 switch.

Does anyone have the Toyota part number for this:

View attachment 2018751

View attachment 2018752

Those are easy to find as they where common in most 70 series before the wide nose and new dash, just search for a land cruiser wrecker /parts seller near you

 

[ALEXY]

try this
84722-60050

 

[Hilux safari]

Those are easy to find as they where common in most 70 series before the wide nose and new dash, just search for a land cruiser wrecker /parts seller near you

Thanks but I’m in Africa. Nothing is quite easy here.

 

[Hilux safari]

try this
84722-60050

Thanks Alexy, that looks right. I’ll be in Europe from next week and search.

 

[roscoFJ73]

I think you could wire your existing "incorrect switch" to work. But the proper switch is very common as it was used 84 to 99.
Do you know if the vacuum is working?

 

[Hilux safari]

Do you know if the vacuum is working?

All pieces seem to be in place. The solenoids are connected and the vacuum hoses are attached. How can I test the solenoids if they work without the switch?

 

[roscoFJ73]

I think by swapping the plugs on the 2 solenoids they will reverse their function, so it should engage the t/case into 4wd. But it still needs vacuum. You can check by removing the hose at the vacuum pump and feeling for it.

 

[Hilux safari]

I was able to find a used switch and tested the solenoids. One of them is faulty. Searching online I only see options around $400 apiece. Does it sound right? Will other land cruiser (60 series or Prado) vacuum solenoid work?

 

[roscoFJ73]

Will other land cruiser (60 series or Prado) vacuum solenoid work?

Yes and I think aftermarket ones are fairly easy to get working also. Bosch? The aircon also uses one on the fast idle gadget.

 

[roscoFJ73]

85440A	SOLENOID ASSY, FOUR WHEEL DRIVE CONTROL
85440-60140

 

[roscoFJ73]

You can get these for $20 from china, similar but different shape

 

[Canarias]

You can swap the vac lines from one to the other to test if vacuum and tcase are working. Swapping connectors round isnt a quick test cos they are keyed ie the 2wd connector doesnt fit the 4wd solenoid and vice versa. You can also jump 12v to the solenoid to see if it shifts.

 

[rojjim]

Recently I realized (while struck in 2 feet of mud) that my transfer case does not shift into 4WD. This cruiser (2002 HZJ76 Japanese market) is new to me and I never had a solenoid controlled transfer case before. After going nuts with the manual front hub locks, I took apart the dashboard switch just to notice that it’s not connected to anything

This is what I have: the solenoids on the firewall are in place, seem to be connected and all vacuum lines are there. In the dashboard I had an H4/Hub lock double switch. Took apart the dash and found a loose connector, but it doesn’t match the switch.

Can someone tell me if the connector I’ve found is in fact the right one coming from the solenoids. If so, i obviously have the wrong switches. If not, then I need to dig deeper in the dashboard to look for another loose connector and figure out what this one does.

View attachment 2017961

View attachment 2017962

View attachment 2017963

Would anybody know the part number for this socket/connector? Thanks.

 

[Guyute]

Would anybody know the part number for this socket/connector? Thanks.

Don't think you'll find a Toyota part number for one connector on a huge harness. Maybe available somewhere on this maze of a website >

hi-1000ec.com - https://www.hi-1000ec.com/

If you're after the 24v H4 switch... I ordered 84722-60060 recently. Looks right and shiny. Haven't swapped my dual switch (Hub Lock/H4) out for it yet though.

 

[ATL Cruiser]

Would anybody know the part number for this socket/connector? Thanks.

Send a picture to these guys. Usually costs $120 per connector with pigtails already attached. It's a lot, but they make it plug and play.

Automotive Connectors | Connector Experts

Looking for the best automotive connectors on the market? Connector Experts has an expansive collection of products. Shop for top-quality connectors.

connectorexperts.com

 

[Guyute]

Send a picture to these guys. Usually costs $120 per connector with pigtails already attached. It's a lot, but they make it plug and play.

Automotive Connectors | Connector Experts

Looking for the best automotive connectors on the market? Connector Experts has an expansive collection of products. Shop for top-quality connectors.

connectorexperts.com

Oooh. Nice. Could have used them about 2 months ago. Bookmarked that site for future. Thanks.

 

[FJ73Texas]

Don't think you'll find a Toyota part number for one connector on a huge harness. Maybe available somewhere on this maze of a website >

hi-1000ec.com - https://www.hi-1000ec.com/

If you're after the 24v H4 switch... I ordered 84722-60060 recently. Looks right and shiny. Haven't swapped my dual switch (Hub Lock/H4) out for it yet though.

Both connectors for either the dual button or single button type were tied into the main harness for me. It was just a matter of changing out from dual button to the single H4 button itself. Hope that made sense. Absolutely no new connector was needed.