INSPECTION PROCEDURE
1 CHECK CABIN
HINT: The GPS uses extremely faint radio waves originating from satellites. If the signal is interrupted by obstructions or other radio waves, the GPS may not be able to properly receive the signal.
OK: Mark appears
NORMAL OPERATION
2 CHECK SURROUNDINGS
HINT: The GPS uses 24 satellites in 6 orbits. At any point in time, 4 satellites should be able to pinpoint your vehicle.
However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction, and time. For illustrated examples, see below.

OK: GPS mark is displayed.
SYSTEM RETURNS TO NORMAL
3 CHECK GPS INFORMATION (NAVIGATION CHECK MODE)

For DENSO Made:
T, P
For AISIN AW Made:
08H, 04H
OK: At least 3 codes appear
REPLACE RADIO AND NAVIGATION ASSEMBLY
Current Position Display does not Appear
Voice Guidance does not FunctionSpeed Signal Circuit
DESCRIPTION
The clearance warning ECU receives the vehicle speed signal from the
combination meter.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to
the combination meter. The signal
is changed to a pulse signal at the transistor in the combination meter.
...
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE FRONT DOOR SCUFF PLATE LH
3. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH
4. REMOVE LOWER INSTRUMENT PANEL FINISH
PANEL SUB-ASSEMBLY LH (See page IP-6)
5. REMOVE TIRE PRESSURE WARNING RESET SWITCH
(a) Disengage the 2 claws and remove t ...
On-vehicle inspection
1. FRONT SEAT SIDE AIRBAG ASSEMBLY (VEHICLE
NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the front seat side airbag assembly installed on
the vehicle, perform a visual check. If there are any
defects as mentioned below, replace the front
seatback as ...