Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.
Check for situations/locations when noise occurs.
| Result | Proceed to |
|---|---|
| Noise occurs in all areas | A |
| Noise occurs in specific areas | B |
A
B
Check that there is no sunshade film or additional devices such as a telecommunications antenna installed.
AFTERMARKET DEVICES (INCLUDING NON-GENUINE WIRING) ARE NOT INSTALLED
The vehicle is equipped with noise filters that prevent other systems in the vehicle from affecting the radio. Therefore, the system will not be affected by large interference. If the system is affected by large interference, confirm that no non-standard wire harnesses are installed, all of the noise filters are installed correctly, and the mount of the antenna is correctly earthed.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the connector (E) from the navigation receiver assembly. Then operate the navigation receiver assembly again to check for noise.
| Result | Proceed to |
|---|---|
| Noise does not occur | A |
| Noise occurs | B |
A
B
Make sure that the mount of the antenna cord sub-assembly is earthed securely to the vehicle body.
Make sure that the mount of the No. 2 antenna cord sub-assembly is earthed securely to the vehicle body.
Installation is normal
| Proceed to |
|---|
| OK |
| NG |
OK
NG
With the connector between the roof antenna assembly and No. 2 antenna cord sub-assembly disconnected, operate the navigation receiver assembly again and check for noise.
| Result | Proceed to |
|---|---|
| Noise occurs | A |
| Noise does not occur | B |
A
B
With the connector between the No. 2 antenna cord sub-assembly and roof antenna assembly disconnected, operate the navigation receiver assembly again and check for noise.
| Result | Proceed to |
|---|---|
| Noise occurs | A |
| Noise does not occur | B |
A
B
With the connector between the No. 3 antenna cord sub-assembly and No. 1 antenna cord sub-assembly disconnected, operate the navigation receiver assembly again and check for noise.
| Result | Proceed to |
|---|---|
| Noise occurs | A |
| Noise does not occur | B |
A
B