RM35X0E _56 Audio / Visual / Telematics _078380 TELEMATICS _0482056 TELEMATICS SYSTEM(for Toyota Connected Services) C

TELEMATICS  TELEMATICS SYSTEM(for Toyota Connected Services)  B15C111  GNSS Antenna Circuit Short to Ground  B15C113  GNSS Antenna Circuit Open  


DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation antenna assembly circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C111 GNSS Antenna Circuit Short to Ground Current to the navigation antenna assembly is higher than the malfunction threshold for 10 seconds or more when the ignition switch is ON
(Short circuit)
·

Telematics transceiver

·

Navigation antenna assembly

·

Antenna cord sub-assembly

·

Antenna divider


B15C113 GNSS Antenna Circuit Open Current to the navigation antenna assembly is lower than the malfunction threshold for 10 seconds or more when the ignition switch is ON
(Open circuit)
·

Telematics transceiver

·

Navigation antenna assembly

·

Antenna cord sub-assembly

·

Antenna divider



WIRING DIAGRAM

E427072E15
4.969,2.208 6.51,2.51 1.542,0.302 10 false Telematics Transceiver 4.719,0.604 5.438,0.844 0.719,0.24 10 false GPS 3.323,0.615 4.042,0.854 0.719,0.24 10 false A 3.323,1.031 4.042,1.271 0.719,0.24 10 false A 3.313,2.219 4.031,2.458 0.719,0.24 10 false B 3.323,2.656 4.042,2.896 0.719,0.24 10 false B 3.323,3.052 4.042,3.292 0.719,0.24 10 false B 3.313,3.479 4.031,3.719 0.719,0.24 10 false B 3.323,0.417 4.042,0.656 0.719,0.24 10 false 3 3.281,0.844 4,1.083 0.719,0.24 10 false 3a 3.302,2.448 4.021,2.688 0.719,0.24 10 false 5a 3.302,3.271 4.021,3.51 0.719,0.24 10 false 6a 3.323,2.021 4.042,2.26 0.719,0.24 10 false 5 3.323,2.854 4.042,3.094 0.719,0.24 10 false 6 1.531,1.479 3.677,1.677 2.146,0.198 10 false Navigation Antenna Assembly 2.073,4.01 4.219,4.208 2.146,0.198 10 false Antenna Divider 3.417,4.01 5.563,4.208 2.146,0.198 10 false Antenna Cord Sub-assembly 4.823,0.417 5.542,0.656 0.719,0.24 10 false 1 4.792,0.833 5.51,1.073 0.719,0.24 10 false 1a 4.719,1.031 5.438,1.271 0.719,0.24 10 false GPS 5.115,0.573 5.833,0.813 0.719,0.24 10 false ANT2

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 Telematics System.

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS SYSTEM (for Toyota Connected Services)>PRECAUTION

·

When replacing the telematics transceiver, make sure to replace it with a new one.



PROCEDURE

1.CHECK DTC
a.

Turn the ignition switch to ON and wait for 10 seconds or more.


b.

Clear the DTCs.

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS SYSTEM (for Toyota Connected Services)>DTC CHECK / CLEAR

Body Electrical > Telematics > Clear DTCs
50002 459

c.

Check for DTCs and check that no DTCs are output.

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS SYSTEM (for Toyota Connected Services)>DTC CHECK / CLEAR

Body Electrical > Telematics > Trouble Codes
50001 459
OK:

No DTCs are output.



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

2.INSPECT NAVIGATION ANTENNA ASSEMBLY
3.INSPECT ANTENNA CORD SUB-ASSEMBLY
a.
E427073C10
1.531,3.115 1.969,3.396 0.438,0.281 1.5,1.646 1.938,1.927 0.438,0.281 1.49,0.042 1.927,0.323 0.438,0.281 2.438,1.542 2.208,1.542 2.208,1.542 1.885,0.865 true 2.969,3.125 2.74,3.125 2.74,3.125 2.552,2.635 true 2.458,4.406 2.229,4.406 2.229,4.406 1.885,4.167 true 2.573,3.708 2.344,3.708 2.344,3.708 1.792,4.042 true 2.708,3.323 2.479,3.323 2.479,3.323 2.219,2.646 true 1.677,0.125 1.833,0.323 0.156,0.198 10 false A 1.667,1.729 1.823,1.927 0.156,0.198 10 false B 1.594,3.188 2.219,3.448 0.625,0.26 10 false GPS 0.417,0.135 0.667,0.375 0.25,0.24 10 false *a 0.49,1.74 0.75,1.979 0.26,0.24 10 false *b 0.531,3.229 1.01,3.531 0.479,0.302 10 false *c 2.5,1.479 2.833,1.677 0.333,0.198 10 false 3a 3.01,3.031 3.344,3.229 0.333,0.198 10 false 6a 2.51,4.344 2.844,4.542 0.333,0.198 10 false 1a 2.615,3.625 3.115,3.833 0.5,0.208 10 false ANT2 2.781,3.219 3.115,3.417 0.333,0.198 10 false 5a
*a Front view of wire harness connector
(to Navigation Antenna Assembly)
*b Front view of wire harness connector
(to Antenna Divider)
*c Front view of wire harness connector
(to Telematics Transceiver)


Disconnect the antenna cord sub-assembly from the navigation antenna assembly connector.


b.

Disconnect the antenna cord sub-assembly from the antenna divider connector.


c.

Disconnect the antenna cord sub-assembly from the telematics transceiver connector.


d.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A-3 - B-6 Always Below 1 Ω
A-3a - B-6a Always Below 1 Ω
A-3 or B-6 - Body ground Always 10 kΩ or higher
B-5 - GPS-1 (ANT2) Always Below 1 Ω
B-5a - GPS-1a Always Below 1 Ω
B-5 or GPS-1 (ANT2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT ANTENNA DIVIDER

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO ANTENNA CORD (for Instrument Panel Side)>REMOVAL


4.INSPECT ANTENNA DIVIDER
a.
E241596C20
1.125,1.417 0.979,1.76 0.979,1.76 0.781,1.76 true 1.406,1.427 1.49,1.771 1.49,1.771 1.74,1.771 true 0.573,1.677 1,1.854 0.427,0.177 10 false 6a 1.813,1.688 2.24,1.865 0.427,0.177 10 false 5a 0.063,0.042 0.375,0.24 0.313,0.198 10 false *a
*a Component without harness connected
(Antenna Divider)


Remove the antenna divider.

Click hereAudio / Visual / Telematics>TELEMATICS>ANTENNA DIVIDER>REMOVAL


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
5 - 6 Always Below 1 Ω
5a - 6a Always Below 1 Ω
5 - 5a Always 10 kΩ or higher
6 - 6a Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.REPLACE TELEMATICS TRANSCEIVER

NG

REPLACE ANTENNA DIVIDER

Click hereAudio / Visual / Telematics>TELEMATICS>ANTENNA DIVIDER>REMOVAL