AUDIO / VIDEO AUDIO AND VISUAL SYSTEM B15DB87 Telematics Transceiver Missing Message
DESCRIPTION
When the radio and display receiver assembly cannot detect the telematics transceiver, this DTC will be stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15DB87 | Telematics Transceiver Missing Message | When 90 seconds has elapsed after turning the ignition switch to ON and the telematics transceiver cannot be detected, the telematics transceiver is judged to be disconnected after comparison with the past USB connected devices information.
(2 trip detection logic) |
·
Telematics transceiver ·
Radio and display receiver assembly ·
Harness or connector |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
Inspect the fuses for circuits related to this system before performing the following procedure.
·When replacing the telematics transceiver, make sure to replace it with a new one.
·Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.
- HINT:
- ·
The TOYOTA Connect system performs communication between devices via USB communication. If a malfunction such as a short in a communication line, short to +B or short to ground occurs in the USB circuit, communication will stop and the TOYOTA Connect system will not operate correctly.
·This DTC may be stored due to environmental reasons such as electrical noise or interference.
PROCEDURE
Disconnect the E12 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(E12)Location & Routingewd_type=routing;type=c;code=E12
Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E12;pinno=20
E12-20 (E) - Body ground Always Below 1 Ω
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition Click Location & Routing(E12)Location & Routingewd_type=routing;type=c;code=E12
Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E12;pinno=1,20,19
E12-1 (+B) - E12-20 (E) IG OFF 11 to 14 V E12-19 (IG2) - E12-20 (E) IG ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
Disconnect the E136 radio and display receiver assembly connector.
Disconnect the E12 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(E136,E12)Location & Routingewd_type=routing;type=c,c;code=E136,E12
Click Connector(E136)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Navigation Receiver Assemblyewd_type=component;type=c;code=E136;pinno=18,17
Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E12;pinno=15,31
E136-18 (USBV) - E12-15 (USBV) Always Below 1 Ω E136-17 (USBG) - E12-31 (USBG) Always Below 1 Ω E136-18 (USBV) or E12-15 (USBV) - Body ground Always 10 kΩ or higher E136-17 (USBG) or E12-31 (USBG) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
With the radio and display receiver assembly connectors connected, disconnect the E12 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(E12)Location & Routingewd_type=routing;type=c;code=E12
Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E12;pinno=31
E12-31 (USBG) - Body ground Always Below 1 Ω
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition Click Location & Routing(E12)Location & Routingewd_type=routing;type=c;code=E12
Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E12;pinno=15,31
E12-15 (USBV) - E12-31 (USBG) IG ON 3 V or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Telematics Transceiver) |
| *b | Front view of wire harness connector
(to Radio and Display Receiver Assembly) |
Disconnect the E164 radio and display receiver assembly connector.
Disconnect the E158 telematics transceiver connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(E158,E164)Location & Routingewd_type=routing;type=c,c;code=E158,E164
Click Connector(E158)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E158;pinno=1,2,3
Click Connector(E164)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Navigation Receiver Assemblyewd_type=component;type=c;code=E164;pinno=2,1,3
E158-1 (USB+) - E164-2 (USB+) Always Below 1 Ω E158-2 (USB-) - E164-1 (USB-) Always Below 1 Ω E158-3 (USBS) - E164-3 (USBS) Always Below 1 Ω E158-1 (USB+) or E164-2 (USB+) - Body ground Always 10 kΩ or higher E158-2 (USB-) or E164-1 (USB-) - Body ground Always 10 kΩ or higher E158-3 (USBS) or E164-3 (USBS) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Replace the telematics transceiver with a new one.
- Result:
Proceed to NEXT
NEXT
Clear the DTCs.
- Body Electrical > Navigation System > Clear DTCs
- 50002 496
Turn the ignition switch off.
Turn the ignition switch to ON and wait for 90 seconds.
Turn the ignition switch off.
Turn the ignition switch to ON and wait for 90 seconds.
Using the GTS, recheck for DTCs and proceed to the following step.
- Body Electrical > Navigation System > Trouble Codes
- 50001 496
- Result:
Result Proceed to DTCs are not output A DTC B15DB87 is output B
A
B