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.
*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 |
Test Mode Procedure
TEST MODE PROCEDURE
1. ENTER TEST MODE (SIGNAL CHECK MODE)
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Check that the tire pressure warning light comes on for 3 seconds and then
goes ...
Open / Short in Steering Lock ECU (B2781)
DESCRIPTION
If the steering lock ECU (steering lock actuator assembly) determines that there
is a malfunction inside the ECU, it outputs this DTC. Diagnostic communication between
the steering lock ECU (steering lock actuator assembly) and the Techstream ...
Power Back Door cannot be Opened or Closed Using the Power Back Door Switch
DESCRIPTION
When the power back door cannot be opened or closed using the power back door
control switch, one of the following may be malfunctioning: 1) power back door control
switch circuit, 2) power back door ECU (power back door motor unit) or 3) main ...