Toyota CH-R Service Manual: "No GPS signal" mark is displayed

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly may not operate normally.

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 "No GPS signal" mark disappears.

HINT:

The GPS uses extremely weak 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 "No GPS signal" mark disappears.

OK

END

NG

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 "No GPS signal" mark disappears.

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 "No GPS signal" mark disappears.

OK

SYSTEM RETURNS TO NORMAL

NG

3.

CHECK GPS INFORMATION (OPERATION CHECK)

(a) Enter the "System Sensors Check" screen. Refer to Check GPS & Vehicle Sensors in Operation Check.

Click here

(b) Check how many of the following codes appear in the "Reception number" column.

HINT:

T or P appears.

OK:

At least 3 codes appear.

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Poor Sound Quality in All Modes (Low Volume)
    PROCEDURE 1. CHECK AUDIO SETTINGS (a) Set treble, middle and bass to the initial values and check that the sound is normal. OK: The sound returns to normal. HIN ...

    Cursor or Map Rotates when Vehicle Stopped
    PROCEDURE 1. CHECK CONDITION (a) Check with the customer if the vehicle has been turned by a turntable. OK: Vehicle has not been turned by a turntab ...

    Other materials:

    Toyota CH-R Service Manual > Smart Key System(for Entry Function): All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate
    DESCRIPTION If the entry lock and wireless door lock operations cannot be performed, the electrical key and TPMS receiver assembly may be malfunctioning, or there may be wave interference or problems in the communication which is used for the entry and wireless function between the electrical ...

    Toyota CH-R Service Manual > Continuously Variable Transaxle Fluid: High Temperature Adjustment
    HIGH TEMPERATURE ADJUSTMENT CAUTION / NOTICE / HINT CAUTION: Be careful not to burn yourself when the fluid temperature is high. To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and co ...

    © 2017-2020 Copyright www.tochr.net
    0.0202