Pre-03 nav delete how-to (10 Viewers)

[AnthraxVX]

I was under the impression that a right hand drive bezel would work for my lx470 so I ordered one from overseas and now that I have it the wiring diagram is completely different. Has anyone had this issue or know a solution. Here is a picture of what my A harness looks like. Completely different than what the chart shows. The other 3 harnesses are different too. Any advice would be greatly appreciated!

View attachment 3878206

yeah it is definitely different, good news and bad news, good news is you have the connector and electricity doesnt care about the color, and you have the connector, but probably not the pins to re-pin it. Bad news is it makes it harder to confirm you are wiring the correct wire to the correct spot, if it were me, id go through and label each one of those with the known color before i did anything, then id go one wire at a time (as recommended in general) and re-wire. OR you could get the correct pins and re-pin but you would end up in the same spot you are now, so id just do what i just said and label those all with the known colors and begin wiring.

but on the other hand, maybe they didnt wire the center console the same? hmm, interesting actually. which center console did u get (3 knobs or digital)

if the center console is wired the same internally, then id also consider removing all pins and just place them in the spot corresponding with their color

 

[ryan25391]

yeah it is definitely different, good news and bad news, good news is you have the connector and electricity doesnt care about the color, and you have the connector, but probably not the pins to re-pin it. Bad news is it makes it harder to confirm you are wiring the correct wire to the correct spot, if it were me, id go through and label each one of those with the known color before i did anything, then id go one wire at a time (as recommended in general) and re-wire. OR you could get the correct pins and re-pin but you would end up in the same spot you are now, so id just do what i just said and label those all with the known colors and begin wiring.

but on the other hand, maybe they didnt wire the center console the same? hmm, interesting actually. which center console did u get (3 knobs or digital)

if the center console is wired the same internally, then id also consider removing all pins and just place them in the spot corresponding with their color

I got the one with the 3 knobs. Would there be a way to determine if the center console is wired the same internally? Here is the one I got

 

[AnthraxVX]

2 options i can think of, hook a coupla things up and test if those work , or find a wiring diagram from japanese version and see what each color is and correlate them to your colors

 

[ryan25391]

2 options i can think of, hook a coupla things up and test if those work , or find a wiring diagram from japanese version and see what each color is and correlate them to your colors

Looking at it again, not even the empty slots line up. On harness A there should be 6 open pins but on mine there are only 3 so I can't really even test it that way. I guess I'll have to look and see if I can find a Japanese diagram.

 

[Hulk]

Here are the wiring diagrams for the 2002. Note the only difference is the navigation into the speaker and the now deleted MFD controls. This is so your navigation can give you turn by turn directions. When you pull the navigation system you will lose your left speaker unless you bypass.

@TXSunDevil - I pulled my navigation unit under the passenger seat a few week ago. Just as you stated, I lost the left front speaker. What do I need to do in order to get the speaker working again? I'll be using the Metra 70-8113 to connect to the JBL amplifier.

 

[TXSunDevil]

I believe I posted a schematic. You just connect the two speaker wires together that were switched by the nav unit under the seat

 

[Hulk]

I believe I posted a schematic. You just connect the two speaker wires together that were switched by the nav unit under the seat

Thank you. I just found the wiring diagram. Much appreciated!

 

[Terry24]

For the nav delete on the pre 03 LX470, do I need the harness of the New 3 knob unit?

I did the Pre-03 Nav Delete on my 2002 LX about 3 years ago… maybe longer, can’t remember when…

This is the pinout I used and it worked flawlessly.

Much homage to the pioneers who compiled this information.

I am wondering if it make the job much easier if I find the harness with the New A/C Unit? I found an A/C unit but without a harness. The wiring on this pinout document look like I don't necessarily need the harness of the new unit? Can anyone tell if we need to find a new unit+harness or the new unit would be enough? Thank you

 

[Unrulykid]

For the nav delete on the pre 03 LX470, do I need the harness of the New 3 knob unit?

I am wondering if it make the job much easier if I find the harness with the New A/C Unit? I found an A/C unit but without a harness. The wiring on this pinout document look like I don't necessarily need the harness of the new unit? Can anyone tell if we need to find a new unit+harness or the new unit would be enough? Thank you

Yes, get the connectors (with 12” pigtails) with the new non-nav bezel… i’ll be honest with you, I cannot confirm that the NAV and non-NAV connectors are all the same. I’m pretty sure that some of them are different.

Some recommendations:

Use wire markers ( get wire marker books at Home Depot) to label EVERYTHING before you cut anything… label both ends of wires to be cut. Mark each wire with original connector number and position, i.e., G14… makes troubleshooting so much easier. Use a hi-lighter pen on the pinout document sheet at the completion of each wire change… Change 1 wire at a time… mark it on the sheet. Keeps you from getting lost. And keeps track that you have completed everything… at the end, safe off wires that are unnecessary.

There are numerous ground wires… you can ground them all together.

After completing all wiring changes, use Tesa tape to loom wiring into bundles for their new connector locations. 1 loom per connector… makes it look factory when you’re done, and the Tesa tape eliminates nuisance rattling.