RM38N0EC _56 Audio / Visual / Telematics _111824 TELEMATICS _0502894 TELEMATICS SYSTEM C

TELEMATICS  TELEMATICS SYSTEM  B15C464  Airbag Signal Signal Plausibility Failure  


DESCRIPTION

If the telematics transceiver detects an error in communication between the telematics transceiver and the airbag sensor assembly as a result of the telematics transceiver self check, this DTC will be set.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C464 Airbag Signal Signal Plausibility Failure Telematics transceiver detects an error in signals from airbag sensor assembly when ignition switch to ON.
·

Airbag system

·

Harness or connector

·

Airbag sensor assembly

·

Telematics transceiver



WIRING DIAGRAM

E462892E04
2.531,1.125 2.833,1.302 0.302,0.177 10 false 23 1.958,1.125 2.479,1.323 0.521,0.198 10 false GSW3 4.896,1.125 5.406,1.313 0.51,0.188 10 false GSW 4.604,1.125 4.875,1.333 0.271,0.208 10 false 13 1.167,2.073 1.49,2.25 0.323,0.177 10 false E64 1.156,2.24 2.74,2.458 1.583,0.219 10 false Airbag Sensor Assembly 4.667,2.063 5.219,2.292 0.552,0.229 10 false E12 4.667,2.229 6.771,2.438 2.104,0.208 10 false Telematics Transceiver

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>PRECAUTION

·

The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the Precaution in the SRS.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>PRECAUTION

·

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

·

Before replacing the telematics transceiver, refer to Service Bulletin.

·

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION



PROCEDURE

1.CHECK DTC (AIRBAG SYSTEM)
a.

Turn the ignition switch off.


b.

Connect the GTS to the DLC3.


c.

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


d.

Turn the GTS on.


e.

Check the DTC of "AIRBAG SYSTEM".

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>DTC CHECK / CLEAR


Result:
Result Proceed to
DTCs are not output A
DTCs are output B



A

2.CHECK DTC

B

GO TO AIRBAG SYSTEM

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.CHECK DTC
a.

Turn the ignition switch off.


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.

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

3.CHECK TELEMATICS TRANSCEIVER (GSW SIGNAL)
3.CHECK TELEMATICS TRANSCEIVER (GSW SIGNAL)
a.
E422011C94
1.469,0.219 1.948,0.458 0.479,0.24 0.719,0.375 0.896,0.375 0.896,0.375 1.104,1.104 true 0.135,0.104 0.406,0.365 0.271,0.26 10 false *a 0.323,0.292 0.698,0.438 0.375,0.146 10 false GSW 1.583,0.26 2.021,0.51 0.438,0.25 10 false E12 0.208,4.031 0.646,4.292 0.438,0.26 10 false GND
*a Component with harness connected
(Telematics Transceiver)


Remove the telematics transceiver but do not disconnect the connectors.

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS TRANSCEIVER>REMOVAL


b.

Check the input waveform.

i.

Check the signal waveform according to the condition(s) in the table below. (Check the waveform from the back of the wire harness connector of the telematics transceiver while the airbag sensor assembly connectors are connected.)

Reference Waveform:
Item Condition
Tester connection E12-13 (GSW) - Body ground
Tool setting 5.0 V/DIV., 20 ms./DIV.
Vehicle condition Ignition switch to ON


OK:

The waveform is similar to that shown in the illustration.




Result:
Proceed to
OK
NG



OK

4.REPLACE TELEMATICS TRANSCEIVER

NG

5.CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - AIRBAG SENSOR ASSEMBLY)
5.CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - AIRBAG SENSOR ASSEMBLY)
a.

Disconnect the E12 telematics transceiver connector.


b.

Disconnect the E64 airbag sensor assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E12,E64)Location & Routing

Click Connector(E12)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Telephone Transceiver

Click Connector(E64)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Airbag Sensor Assembly

E12-13 (GSW) - E64-23 (GSW3) Always Below 1 Ω
E12-13 (GSW) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE AIRBAG SENSOR ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR