Navigation System oddity - 2014 GX460

[Cancruiser]

Hi folks,
2014 GX 460. My GPS wanders all the time, map keeps scrolling but location and direction are wrong.
Even if I do manual calibration, it does the same shortly after.

I checked codes and found this reported.
B15B0: GPS Antenna Open Circuit.

Any idea where to start the troubleshooting?

P.S. It likely not in the console/headunit because I changed that a year ago (to fix another problem) and the GPS was messed up the same before and after I replaced it.

Cheers,

 

[iwashmycar]

I would probably get in there and check the connections first and foremost. Probably any other connections you did not make when replacing the screen before?


NAVIGATION: NAVIGATION SYSTEM (for DVD): B15A6,B15B0: Display Malfunction

B15A6 - Display Malfunction
B15B0 - Display Screen Malfunction

DESCRIPTION

These DTCs are stored when a malfunction occurs in the display and navigation module display.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs Navigation System (for DVD).

(b) Check for DTCs and check if same trouble occurs again.

OK:

No DTCs are output.

NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal

OK -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure