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

TELEMATICS  TELEMATICS SYSTEM(for Toyota Connected Services)  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 telephone sub antenna circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
B153711 Telephone Sub Antenna Circuit Short to Ground Telephone sub antenna 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 Telephone sub antenna 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

E364289E49
2.063,2.406 3.271,2.823 1.208,0.417 10 false Navigation Antenna Assembly 3.708,2.667 4.625,3.031 0.917,0.365 10 false Antenna Cord Sub-assembly 5.031,2.552 6.604,3.01 1.573,0.458 10 false Telematics Transceiver 4.708,1.438 5.25,1.677 0.542,0.24 10 false TELS 3.354,1.427 3.469,1.594 0.115,0.167 10 false A 3.365,1.969 3.479,2.135 0.115,0.167 10 false A 4.833,1.229 4.948,1.396 0.115,0.167 10 false 1 4.781,1.76 4.979,1.927 0.198,0.167 10 false 1a 3.365,1.229 3.479,1.396 0.115,0.167 10 false 4 3.333,1.76 3.531,1.927 0.198,0.167 10 false 4a 5.156,1.448 5.646,1.677 0.49,0.229 10 false ANT3 4.708,1.969 5.25,2.208 0.542,0.24 10 false TELS

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.


b.

Connect the GTS to the DLC3.


c.

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


d.

Turn the GTS on.


e.

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
2.INSPECT NAVIGATION ANTENNA ASSEMBLY
a.
E356744C24
1.375,1.177 1.417,0.833 true 1.438,0.802 1.302,0.323 true 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)


Remove the navigation antenna assembly.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION ANTENNA>REMOVAL


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4 - 4a Always 9 to 11 kΩ



Result:
Proceed to
OK
NG



OK

3.INSPECT ANTENNA CORD SUB-ASSEMBLY

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION ANTENNA>REMOVAL


3.INSPECT ANTENNA CORD SUB-ASSEMBLY
a.
E427068C37
1.479,0.115 1.906,0.385 0.427,0.271 1.479,1.698 1.938,1.99 0.458,0.292 2.146,0.844 2.5,0.333 2.5,0.333 2.698,0.333 true 1.833,2.771 2.188,2.26 2.188,2.26 2.385,2.26 true 1.021,2.604 1.208,2.604 1.208,2.604 1.646,2.781 true 0.125,0.135 0.438,0.333 0.313,0.198 10 false *a 2.771,0.25 3.083,0.448 0.313,0.198 10 false 4a 2.448,2.188 2.76,2.385 0.313,0.198 10 false 1a 0.625,2.521 1.021,2.813 0.396,0.292 10 false ANT3 1.635,0.167 1.948,0.365 0.313,0.198 10 false A 1.531,1.76 1.938,1.938 0.406,0.177 10 false TELS 0.167,1.792 0.479,1.99 0.313,0.198 10 false *b
*a Front view of wire harness connector
(to Navigation Antenna Assembly)
*b Front view of wire harness connector
(to Telematics Transceiver)


Disconnect the antenna connector from the navigation antenna assembly.


b.

Disconnect the antenna connector from the telematics transceiver.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A-4 - TELS-1 (ANT3) Always Below 1 Ω
A-4a - TELS-1a Always Below 1 Ω
A-4 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK NAVIGATION ANTENNA ASSEMBLY

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY

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


4.CHECK NAVIGATION ANTENNA ASSEMBLY
a.

Replace the navigation antenna assembly with a known good one.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION ANTENNA>REMOVAL


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.

Recheck 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

END (NAVIGATION ANTENNA ASSEMBLY IS DEFECTIVE)

NG

5.REPLACE TELEMATICS TRANSCEIVER