RM38T0EC _56 Audio / Visual / Telematics _115231 TELEMATICS _0512170 TELEMATICS SYSTEM(for TOYOTA Connect) C

TELEMATICS  TELEMATICS SYSTEM(for TOYOTA Connect)  B153711  Telephone Sub Antenna Circuit Short to Ground  B153713  Telephone Sub Antenna Circuit Open  


DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area
B153711 Telephone Sub Antenna Circuit Short to Ground Navigation antenna assembly impedance (Ω) is lower 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


B153713 Telephone Sub Antenna Circuit Open Navigation antenna assembly impedance (Ω) is higher 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



WIRING DIAGRAM

E360069E22
0.125,1.219 2.25,1.469 2.125,0.25 10 false Navigation Antenna Assembly 0.125,1.042 0.448,1.25 0.323,0.208 10 false D 5.646,0.969 5.969,1.177 0.323,0.208 10 false A 5.646,1.167 7.135,1.479 1.49,0.313 10 false Telematics Transceiver 3.604,0.719 3.854,0.927 0.25,0.208 10 false * 0.854,2.281 3.063,2.573 2.208,0.292 10 false *: Antenna Cord Sub-assembly 1.156,0.438 1.406,0.646 0.25,0.208 10 false 4 5.927,0.427 6.177,0.635 0.25,0.208 10 false 1

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 Connect)>PRECAUTION

·

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

·

Before replacing the telematics transceiver, refer to Service Bulletin.



PROCEDURE

1.CHECK DTC
a.

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


b.

Clear the DTCs.

Body Electrical > Telematics > Clear DTCs
50002 459

c.

Check for DTCs and check that no DTCs are output.

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
2.INSPECT NAVIGATION ANTENNA ASSEMBLY
a.

Remove the navigation antenna assembly.

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


b.
E356744C02
1.375,1.188 1.417,0.844 false 1.438,0.802 1.302,0.323 false 0.135,0.146 0.448,0.344 0.313,0.198 10 false *a 1.198,1.156 1.406,1.385 0.208,0.229 10 false 4a 1.188,0.156 1.396,0.385 0.208,0.229 10 false 4
*a Component without harness connected
(Navigation Antenna Assembly)


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

Standard Resistance:
Tester Connection Condition Specified Condition
4 - 4a Always 4 to 11 kΩ



Result:
Proceed to
OK
NG



OK

3.INSPECT ANTENNA CORD SUB-ASSEMBLY

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY

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


3.INSPECT ANTENNA CORD SUB-ASSEMBLY
a.
E334514C67
0.656,1.031 1.031,1.281 0.375,0.25 2.167,0.865 2.375,0.438 true 0.792,1.073 1.104,1.271 0.313,0.198 10 false D 2.417,0.333 2.729,0.531 0.313,0.198 10 false 4a 0.146,0.125 0.458,0.323 0.313,0.198 10 false *a
*a Component without harness connected
(Antenna Cord Sub-assembly)


E418543C32
1.448,0.167 1.865,0.417 0.417,0.25 1.115,1.771 1.448,1.417 true 1.615,0.229 1.771,0.427 0.156,0.198 10 false A 0.906,1.698 1.24,1.896 0.333,0.198 10 false 1a 0.167,0.146 0.365,0.323 0.198,0.177 10 false *a
*a Component without harness connected
(Antenna Cord Sub-assembly)


Disconnect the antenna connector from the navigation antenna assembly.


b.

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


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A-1 - D-4 Always Below 1 Ω
A-1a - D-4a Always Below 1 Ω
A-1 or D-4 - Body ground Always 10 kΩ or higher
A-1a or D-4a - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.REPLACE TELEMATICS TRANSCEIVER

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO ANTENNA CORD>REMOVAL