Toyota LAND CRUISER Service Manual Supplement page 340

BODY ELECTRICAL SYSTEM - SATELLITE NAVIGATION SYSTEM
Display
DIAGNOSIS SYSTEM
OUTPUT OF DIAGNOSTIC CODE
READ DIAGNOSTIC CODE
DO THE FOLLOWING STEPS TO READ DIAGNOSTIC CODE
(a) Turn the ignition switch ACC or ON.
(b) Push " N A V I " or " S E T " .
(c) Push " N A V I " and " S E T " simultaneously for 5 seconds.
(d) Display the condition of each system on the screen.
If a malfunction code is displayed, check it again using
other parts.
Normal
Display malfunction
GPS ECU malfunction
GPS antenna malfunction
Antenna cable faulty
Malfunction in wire harness between GPS ECU
and display.
Diagnosis
BE-61