Pinpoint Test I : The GPS no reception mark does not disappear.

NOTE: Move the vehicle to an open area, radio waves from satellites may not be received inside buildings.

NOTE: Correct the vehicle cursor to the current location.

I1: RETRO-INSTALL INSTALLATIONS CHECK
Check to see if there are any retro-install installations (anti-theft, radar, etc.)

Are there any retro-install installations?

YES: Go to step 2.

NO: Go to step 3.
I2: RETRO-INSTALL INSTALLATIONS RF CHECK
Turn power supply (including back-up power) to OFF status.

Does the GPS no reception mark disappear?

YES: GPS reception may deteriorate when devices receiving radio waves are retro-installed. Alter the position of the retro-install device, and re-test vehicle.

NO: Go to step 4.
I3: SATELLITE RECEPTION CHECKS
Check to see if a 'P' or 'T' is displayed in the 'STS' column of the navigation diagnostics GPS information screen after 10 minutes have passed.

Is a 'P' or a 'T' displayed?

YES: Wait for reception of another satellite so that position calculation can be performed.

NO: Refer to the electrical circuit wiring diagrams and check the integrity of the wiring harness and connectors to the GPS antenna. Proceed to the next step.
I4: GPS ANTENNA REPLACEMENT
Install a new GPS antenna.

Does the GPS no signal mark disappears when the GPS antenna is replaced.

YES: Fault has been rectified.

NO: Check and install a new Touch Screen Display (TSD) as required. Refer to the new module/component installation note at top of DTC Index.