PROCEDURE
|
1. |
CHECK CABIN |
(a) Check the cabin for any object that might interrupt radio reception or additional devices which use radio waves on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears.
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:
The GPS mark appears.
| OK | |
END |
|
|
2. |
CHECK SURROUNDINGS |
(a) Check if the vehicle is in a location where GPS signal reception is poor. If the vehicle is in such a place, relocate the vehicle and check if the GPS mark reappears.
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 examples, see the following illustration.
Text in Illustration
|
*a |
Example |
*b |
In a tunnel |
|
*c |
In a building |
*d |
Under an overpass |
|
*e |
On a forest or tree-lined path |
*f |
Between tall buildings |
|
*g |
Under a cliff or overhang |
- |
- |
OK:
The GPS mark is displayed.
| OK | |
END (SYSTEM RETURNS TO NORMAL) |
|
|
3. |
CHECK SYSTEM SENSORS (OPERATION CHECK) |
(a) Enter the "System Sensors Check" screen.
Refer to Check System Sensors in Operation Check (See page
).
(b) Check how many of the following codes appear in the "Reception number".
HINT:
T or P appears.
OK:
At least 3 codes appear.
| OK | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
| NG | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
Poor Sound Quality in All Modes (Low Volume)
Route cannot be CalculatedVehicle Speed Signal Malfunction (B2282)
DESCRIPTION
The power management control ECU receives vehicle speed information using 2 methods.
It receives a speed signal from the meter ECU. It also receives speed information
from the meter ECU via CAN. If the information sent using these 2 methods is ...
Engine Speed Signal Error (Test Mode DTC) (C2194/94)
DESCRIPTION
The tire pressure warning ECU receives an engine speed signal from the ECM. This
DTC is stored upon entering signal check mode (test mode), and cleared when an engine
speed signal of 1000 rpm is detected for 3 seconds or more. This DTC is outp ...
Customize Parameters
CUSTOMIZE PARAMETERS
1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE)
HINT:
The following items can be customized.
NOTICE:
When the customer requests a change in a function, first make sure that
the function can be customized.
Record th ...