If the radio and display receiver assembly cannot detect the telematics transceiver for a certain period of time (90 seconds) after the ignition switch is turned to ON and the radio and display receiver assembly confirms that the information is missing by checking past telematics transceiver recognition information (registered information), this DTC will be stored.
The telematics system uses USB communication between devices. If an open, short, short to +B or short to ground occurs in the USB circuit, communication is interrupted and the telematics system will not operate normally.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15DB | Telematics Transceiver Disconnected | Telematics transceiver disconnected | ·
Harness or connector ·
Telematics transceiver ·
Radio and display receiver assembly ·
Navigation ECU |
This DTC may be stored due to environmental reasons such as electrical noise or interference.
When replacing the telematics transceiver, make sure to replace it with a new one.
Inspect the fuses for circuits related to this system before performing the following procedure.
When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one.
If a radio and display receiver assembly or navigation ECU 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 or navigation ECU may not operate normally.
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.
Clear the DTCs.
Turn the ignition switch off.
Turn the ignition switch to ON and wait for 90 seconds.
Recheck for DTCs and check that no DTCs are output.
No DTCs are output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Telematics Transceiver) |
Disconnect the N164 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N164-20 (E) - Body ground | Always | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N164-1 (+B) - Body ground | Always | 11 to 14 V |
| N164-19 (IG2) - Body ground | Ignition switch ON | 11 to 14 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the O6 radio and display receiver assembly connector.
Disconnect the N164 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O6-10 (USBV) - N164-15 (USBV) | Always | Below 1 Ω |
| O6-11 (USBG) - N164-31 (USBG) | Always | Below 1 Ω |
| O6-10 (USBV) - Body ground | Always | 10 kΩ or higher |
| O6-11 (USBG) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Telematics Transceiver) |
Disconnect the N164 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N164-31 (USBG) - Body ground | Always | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| N164-15 (USBV) - N164-31 (USBG) | Ignition switch ON | 4.75 to 5.25 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Telematics Transceiver) |
| *b | Front view of wire harness connector
(to Navigation ECU) |
Disconnect the N205 telematics transceiver connector.
Disconnect the N206 navigation ECU connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N205-2 (USB+) - N206-1 (USB+) | Always | Below 1 Ω |
| N205-1 (USB-) - N206-2 (USB-) | Always | Below 1 Ω |
| N205-3 (USBS) - N206-3 (USBS) | Always | Below 1 Ω |
| N205-2 (USB+) - Body ground | Always | 10 kΩ or higher |
| N205-1 (USB-) - Body ground | Always | 10 kΩ or higher |
| N205-3 (USBS) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Replace the telematics transceiver with a new one.
Clear the DTCs.
Turn the ignition switch off.
Turn the ignition switch to ON and wait for 90 seconds.
Recheck for DTCs and check that no DTCs are output.
No DTCs are output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Replace the navigation ECU with a new one.
Clear the DTCs.
Turn the ignition switch off.
Turn the ignition switch to ON and wait for 90 seconds.
Recheck for DTCs and check that no DTCs are output.
No DTCs are output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG