pdantoni

Brooks, you are correct. I have performed the operation...the navigation system is in NO way affected by the procedure.

Philip

cmc5dc

Pdantoni,

Hey thanks for your input, your explanation/diagram was what I was looking for. I'll try the mod this weekend.

I have my car service from the dealership for oil changes and I did not want to void my warranty if they run a diagnostic test which they do and then your SOL.

Again thanks

cmc

peterGX470

anyone know where the video input for the NAV screen is?

pdantoni

peterGX470,

I don't have my car with me, but I believe I remember seeing it near the rear A/C controls...

Philip

cmc5dc

Phillip,

I did as you described above, however something isn't wired right. Everything is normal as in stock but when I throw the switch up the brake light appears but dvd doesn't show up....if I hit audio button their is no bold picture button as in the case when the parking brake is up but like I said the parking light appears when I throw the switch up. Any suggestions?

ELEX470

Will this DVD Override fix for 2005 Gx470 will also allow me to use ALL the touchscreen functions while i am driving or i need to do something else?
if something else do you know what i need to do?
Thank you for your help!

loflin

Sounds like you have GND'd the wrong side of the Parking Brake signal. You need to GND the side going into the NAV, so it thinks the Prk Brake is on. You should NOT get the Pkg Brk light in the dash on, unless you've GND'd the part of the wire (you cut) that goes back up into the dash.

cmc5dc

So the diagraph is correct and I just grnded the wrong side? If that is so than I'll try what you mentioned.

thanks,
cmc

pdantoni

I'm not sure what's wrong. When I throw the switch, the brake light does not come on. Read the beginning of the this forum and check what the original post and pictures say. I diagram was from memory.

Sorry,
Philip

-GX470-

Pardon any ignorance on my part but am I to understand that is you run the Violet wire with a red stripe of the NAV Computer through a switch, Open position to allow entry into the Nav screen and closed to resume normal operation. This is all that needs to be done for bypass on an 05 GX?

Thanks for any replies!

pdantoni

Don't forget the emergency brake wire. In order to use the DVD on the front screen you have to disconnect the violet wire with the red stripe AND ground the light green wire. - Philip

loflin

Sorry, can't comment on the wiring "diagram", I was just responding to your symptoms.

cmc5dc

Well I switch the ------Violet Wire from Plug -----O O------Light Green Wire from Plug and Violet Wire from Harness------O O------Light Green Wire from Harness around so the ground wire was next to the Light Green Wire from plug and the brake light issue no longer goes on and the DVD works as it should when rolling .

My only question is when the switch is off shouldn't it act like stock.....pull the brake and hit the audio button then picture (on screen button) should appear in bold? It doesn't do it, the picture (on screen button) isn't bold but faint as in the inability to access while driving. Did I miss something Philip or anyone?

Any help/suggestions would be appreciated.

Newbie

Tony

I am going to try to do this over Thanks Giving where do you buy the swicth and what is the part number?

Thanks

Tony

cmc5dc

double-pole, double-throw switch from Radio Shack (about $3). Look at the pic in the beginning of thread, mine didn't have the on logo.