DESCRIPTION If the radio
and display receiver assembly cannot detect the DCM (telematics
transceiver) for a certain period of time (90 seconds) after the engine
switch is turned on (ACC) and the radio and display receiver assembly
confirms that the information is missing by checking past DCM
(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 |
DCM (telematics transceiver) disconnected |
- Harness or connector
- DCM (telematics transceiver)
- DCM (telematics transceiver) power source circuit
- Radio and display receiver assembly
| HINT: This DTC may be stored due to environmental reasons such as electrical noise or interference. WIRING DIAGRAM
 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 Audio and Visual 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.
- Inspect the fuses for circuits related to this system before performing the following procedure.
- Before replacing the DCM (telematics transceiver), refer to Registration.
Click here
PROCEDURE |
1. | CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) POWER SOURCE) |
(a) Disconnect the G9 DCM (telematics transceiver) connector. (b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G9-4 (E) - Body ground |
Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage: |
Tester Connection | Condition |
Specified Condition | |
G9-1 (+B) - G9-4 (E) |
Always | 11 to 14 V | |
G9-8 (ACC) - G9-4 (E) |
Engine switch on (ACC) |
11 to 14 V | |
G9-7 (IG2) - G9-4 (E) |
Engine switch on (IG) |
11 to 14 V |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK |
 | |
| 2. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Disconnect the G1 radio and display receiver assembly connector.
| (b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G1-11 (USBG) - Body ground |
Always | Below 1 Ω | |
 |
|
*a | Component without harness connected
(Radio and Display Receiver Assembly) | | |
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage: |
Tester Connection | Condition |
Specified Condition | |
G1-10 (USBV) - G1-11 (USBG) |
Engine switch on (IG) |
4.75 to 5.25 V |
| NG |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
OK | |
| |
| 3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) |
(a) Disconnect the G1 radio and display receiver assembly connector. (b) Disconnect the G11 DCM (telematics transceiver) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G1-10 (USBV) - G11-5 (USBV) |
Always | Below 1 Ω | |
G1-11 (USBG) - G11-3 (USBG) |
Always | Below 1 Ω | |
G1-10 (USBV) or G11-5 (USBV) - Body ground |
Always | 10 kΩ or higher | |
G1-11 (USBG) or G11-3 (USBG) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) |
(a) Check the installation condition. (1)
Check the USB communication lines between the radio and display
receiver assembly and DCM (telematics transceiver) for any installation
or connection problems. (b) Disconnect the G108 radio and display receiver assembly connector.
(c) Disconnect the G11 DCM (telematics transceiver) connector.
| (d) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G108-1 (USB+) - G11-2 (USB+) |
Always | Below 1 Ω | |
G108-2 (USB-) - G11-1 (USB-) |
Always | Below 1 Ω | |
G108-3 (USBS) - G11-6 (USBS) |
Always | Below 1 Ω | |
G108-1 (USB+) or G11-2 (USB+) - Body ground |
Always | 10 kΩ or higher | |
G108-2 (USB-) or G11-1 (USB-) - Body ground |
Always | 10 kΩ or higher | |
G108-3 (USBS) or G11-6 (USBS) - Body ground |
Always | 10 kΩ or higher | |
 |
|
*a | Front view of wire harness connector
(to DCM (Telematics Transceiver)) | |
*b | Front view of wire harness connector
(to Radio and Display Receiver Assembly) | | |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 5. |
REPLACE DCM (TELEMATICS TRANSCEIVER) | (a) Replace the DCM (telematics transceiver) with a new one.
Click here (b) Clear the DTCs. Body Electrical > Navigation System > Clear DTCs
(c) Turn the engine switch off. (d) Turn the engine switch on (IG) and wait for 90 seconds.
(e) Recheck for DTCs and check that no DTCs are output. Body Electrical > Navigation System > Trouble Codes
OK: No DTCs are output.
| OK | |
END |
| NG |
| REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY | | 
