Go Back   Club Lexus Forums > Lexus Model Forums > SC Models > SC 430
Sign in using an external account
Register Forgot Password?

2002 SC430 Navigation Antenna

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 01-26-11, 05:54 PM   #1
gabeLex
Rookie
Trader Score: (0)
 
Join Date: Jul 2004
Location: Texas
Posts: 50
Send a message via AIM to gabeLex
Default 2002 SC430 Navigation Antenna

Hello all,

Can anyone guide me in the right direction of finding out how to replace the navigation antenna in the factory unit that came with the 2002 SC430?

In Diagnostics mode, there's no satellites detected...this means there's no signal to the unit.

If anyone has an inexpensive solution, please let me know.

Thanks!
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
__________________
SC430 Crystal White
gabeLex is offline   Reply With Quote
Old 01-26-11, 07:22 PM   #2
VVTiBob
Moderator
Trader Score: (0)
 
Join Date: Dec 2009
Location: San Diego, CA
Posts: 2,004
Default

Well the first obvious question is do you have line of sight to the sky? Believe it or not some people attempt to run the diagnostics from underground parking, or inside the garage.

The Nav antenna is located under the dash behind the display. Go to this thread, item #3....http://www.clublexus.com/forums/sc-4...ntenna-is.html
__________________
02 Millennium Silver

JDM Rear Seat Cover - Spare Tire Kit - Sport Pedals - Chrome Tourmalines - LED Lighting - 06 Tails - LED Rocker Lights - MGP Caliper Covers - GEN 4 NAV w/BeatSonic Override - Luxlink - Backup Camera - 2012 Pioneer AVH-P4400BH Head Unit w/Beatsonic's NEW MVA-12L Adapter & Steering Pad Controls.
https://www.photoshop.com/express/in...ackingid=BTAGC
VVTiBob is offline   Reply With Quote
Old 01-27-11, 03:31 AM   #3
gabeLex
Rookie
Trader Score: (0)
 
Join Date: Jul 2004
Location: Texas
Posts: 50
Send a message via AIM to gabeLex
Default

Thanks,

I checked it outside in clear skies, and there's no signal from anywhere. I guess it's time for me to roll up my sleeves and remove the nav system.
__________________
SC430 Crystal White
gabeLex is offline   Reply With Quote
Old 01-27-11, 07:33 AM   #4
Habious
Moderator
Trader Score: (0)
 
Habious's Avatar
 
Join Date: Jan 2007
Location: VA
Posts: 2,710
Default

I've had my Nav screen out. It's a PITA to get out of there.

You have to pull the climate module, the wood-covered side vent on the left side of the screen, the long wood panel on the right side of the screen, and there are like 4 bolts to get the whole assembly loose.
__________________
2003 Lexus SC430 - Black with Ecru interior. VaisTech & NavTool interfaces with Centrafuse CarPC integrated into factory navigation screen (includes hands-free Bluetooth, Voice Command, mp3 support, videos, HD Radio, Sirius Satellite radio, DVD playback, Internet access, and digital gauge cluster (via OBD-II))...LuxLink remote top/start module, and GlobalTop HUD unit.
My CarPC YouTube Video - - - - - - - - - - - - - NY Times Article
Habious is offline   Reply With Quote
Old 01-27-11, 09:04 AM   #5
cjs18
Pole Position
Trader Score: (0)
 
cjs18's Avatar
 
Join Date: Apr 2008
Location: Kansas City
Posts: 353
Default

The scope of work is more than removing the nav unit. Unfortunately the antenna is located behind some AC ductwork and fastened to the underside of the instrument panel safety pad with screws that are applied from the wrong direction to be accessed from inside the car - so the factory procedure is to remove the glareshield and at least half the other stuff in the front of your car. It is a huge undertaking that might make one take a second look at a $200 Garmin unit. Of course as with any of these things there might be shortcuts but it doesn't look easy.
Attached Images
File Type: pdf Nav Antenna Lexus_SC_430.pdf (21.6 KB, 142 views)
cjs18 is offline   Reply With Quote
Old 01-27-11, 10:24 AM   #6
VVTiBob
Moderator
Trader Score: (0)
 
Join Date: Dec 2009
Location: San Diego, CA
Posts: 2,004
Default

Gabe,
I couple of questions that may isolate the problem further... Back in the diagnostic screens
goto the GPS Information screen. What is displayed in the bottom left corner after the word Status: ??????? Just above the word status you should see Measurement Date (GMT). Anything there?

Then onto THE SERVICE check... Right side NAVI-ECU diagnostic screen .... what are the reading? Any DTC codes? Check out this below... asterisk and number tie back to the graphic on the left... Looking for a "40" "41" error code in the *12 area that points to the antenna, otherwise it probable the ECU. I sent you a PM too.
Attached Images
 
__________________
02 Millennium Silver

JDM Rear Seat Cover - Spare Tire Kit - Sport Pedals - Chrome Tourmalines - LED Lighting - 06 Tails - LED Rocker Lights - MGP Caliper Covers - GEN 4 NAV w/BeatSonic Override - Luxlink - Backup Camera - 2012 Pioneer AVH-P4400BH Head Unit w/Beatsonic's NEW MVA-12L Adapter & Steering Pad Controls.
https://www.photoshop.com/express/in...ackingid=BTAGC

Last edited by VVTiBob; 01-27-11 at 10:43 AM..
VVTiBob is offline   Reply With Quote
Old 01-27-11, 03:31 PM   #7
gabeLex
Rookie
Trader Score: (0)
 
Join Date: Jul 2004
Location: Texas
Posts: 50
Send a message via AIM to gabeLex
Default

Status is '--'. The current date time is by GMT, nothing by measurement. How do I get to the service menu?
__________________
SC430 Crystal White
gabeLex is offline   Reply With Quote
Old 01-27-11, 03:44 PM   #8
VVTiBob
Moderator
Trader Score: (0)
 
Join Date: Dec 2009
Location: San Diego, CA
Posts: 2,004
Default

1.With the car stopped
2 set parking brake
3 turn ingnition to ACC or ON
4 push the display button for the Nav system
5 On the screen you should see a rectangle box between the word "display" at the top left and the contrast control at the bottom left.
Inside the box, touch top left corner, bottom left corner in that order three time in a row.
puts you into service mode
__________________
02 Millennium Silver

JDM Rear Seat Cover - Spare Tire Kit - Sport Pedals - Chrome Tourmalines - LED Lighting - 06 Tails - LED Rocker Lights - MGP Caliper Covers - GEN 4 NAV w/BeatSonic Override - Luxlink - Backup Camera - 2012 Pioneer AVH-P4400BH Head Unit w/Beatsonic's NEW MVA-12L Adapter & Steering Pad Controls.
https://www.photoshop.com/express/in...ackingid=BTAGC

Last edited by VVTiBob; 01-27-11 at 03:50 PM..
VVTiBob is offline   Reply With Quote
Old 01-27-11, 03:46 PM   #9
VVTiBob
Moderator
Trader Score: (0)
 
Join Date: Dec 2009
Location: San Diego, CA
Posts: 2,004
Default

Once in service mode menu, press Unit Check to get to the "NAVI-ECU" in the right column
__________________
02 Millennium Silver

JDM Rear Seat Cover - Spare Tire Kit - Sport Pedals - Chrome Tourmalines - LED Lighting - 06 Tails - LED Rocker Lights - MGP Caliper Covers - GEN 4 NAV w/BeatSonic Override - Luxlink - Backup Camera - 2012 Pioneer AVH-P4400BH Head Unit w/Beatsonic's NEW MVA-12L Adapter & Steering Pad Controls.
https://www.photoshop.com/express/in...ackingid=BTAGC
VVTiBob is offline   Reply With Quote
Old 01-27-11, 05:53 PM   #10
gabeLex
Rookie
Trader Score: (0)
 
Join Date: Jul 2004
Location: Texas
Posts: 50
Send a message via AIM to gabeLex
Default Images of the service screens

Click the image to open in full size.

Click the image to open in full size.
__________________
SC430 Crystal White
gabeLex is offline   Reply With Quote
Old 01-27-11, 06:16 PM   #11
VVTiBob
Moderator
Trader Score: (0)
 
Join Date: Dec 2009
Location: San Diego, CA
Posts: 2,004
Default

Now that you have a record of the codes, clear them by touching and holding the Code CLR button for 3+ seconds and lets see if the errors return or new error present.
__________________
02 Millennium Silver

JDM Rear Seat Cover - Spare Tire Kit - Sport Pedals - Chrome Tourmalines - LED Lighting - 06 Tails - LED Rocker Lights - MGP Caliper Covers - GEN 4 NAV w/BeatSonic Override - Luxlink - Backup Camera - 2012 Pioneer AVH-P4400BH Head Unit w/Beatsonic's NEW MVA-12L Adapter & Steering Pad Controls.
https://www.photoshop.com/express/in...ackingid=BTAGC
VVTiBob is offline   Reply With Quote
Old 01-28-11, 12:32 AM   #12
gabeLex
Rookie
Trader Score: (0)
 
Join Date: Jul 2004
Location: Texas
Posts: 50
Send a message via AIM to gabeLex
Default

Will do this step once I receive car back. Had to leave it at dealer to get the TPMS fixed, should get it back soon. So, what does the current codes mean?
__________________
SC430 Crystal White
gabeLex is offline   Reply With Quote
Old 01-28-11, 09:21 AM   #13
VVTiBob
Moderator
Trader Score: (0)
 
Join Date: Dec 2009
Location: San Diego, CA
Posts: 2,004
Default

Sent you an extensive PM
__________________
02 Millennium Silver

JDM Rear Seat Cover - Spare Tire Kit - Sport Pedals - Chrome Tourmalines - LED Lighting - 06 Tails - LED Rocker Lights - MGP Caliper Covers - GEN 4 NAV w/BeatSonic Override - Luxlink - Backup Camera - 2012 Pioneer AVH-P4400BH Head Unit w/Beatsonic's NEW MVA-12L Adapter & Steering Pad Controls.
https://www.photoshop.com/express/in...ackingid=BTAGC
VVTiBob is offline   Reply With Quote
Old 03-11-11, 02:05 PM   #14
gabeLex
Rookie
Trader Score: (0)
 
Join Date: Jul 2004
Location: Texas
Posts: 50
Send a message via AIM to gabeLex
Default

I reset statistics and it appears to be a bad antenna.
http://lexus.sewellparts.com/oem-cat...C430-2002.html

That antenna assembly costs $445.79 Part# 86860C . Is it worth it or should i try to go aftermarket?

Need advice

Thanks!
__________________
SC430 Crystal White
gabeLex is offline   Reply With Quote
Old 03-11-11, 02:05 PM
 
 
 
 
Reply

Tags
2002, antenna, clean, ecu, hidden, lexus, menu, nav, navigation, navigational, removal, remove, removing, sc430, screen, unit

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Front windshield antenna 2002 SC430 marty99 SC 430 6 10-16-13 11:11 AM
Odd Navigation Problem 2002 SC 430 rgeisler SC 430 13 09-18-13 07:44 AM
The Perfect Car For Me Lexus SC 430 2002 igorxx SC 430 17 09-03-13 02:05 PM
Antenna Mast wont go up or down???? $635.00 for a Radio Antenna rclab1 SC 430 12 05-03-13 12:30 PM
navigation GS430 kingloose GS - Second Generation 16 07-04-04 06:01 AM

All times are GMT -7. The time now is 02:49 AM.

Join ClubLexus
Advertising


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS


Get all contact info