RM36D0EC _56 Audio / Visual / Telematics _083087 TELEMATICS _0402655 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 ECU assembly as a result of the telematics transceiver self check, this DTC will be output.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15C464	Airbag Signal Signal Plausibility Failure	Telematics transceiver detects an error in signals from airbag ECU assembly when ignition switch is ON.	· Airbag system · Harness or connector · Airbag ECU assembly · Telematics transceiver

WIRING DIAGRAM

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 G70 1.156,2.24 2.74,2.458 1.583,0.219 10 false Airbag ECU Assembly 4.667,2.063 5.219,2.292 0.552,0.229 10 false G131 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>PRECAUTION202304,999999,_56,_083087,_0402655,RM1000000029YMD,

·

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.

for GTMC Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for GTMC Made)>PRECAUTION202405,999999,_58,_083100,_0694959,RM100000002LV12,

for SFTM Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for SFTM Made)>PRECAUTION202405,202409,_58,_083100,_0694957,RM100000002LV40,202409,999999,_58,_083100,_0694957,RM100000002NSNT,

·

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 (-) battery terminal.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION201910,999999,_V1,_083040,_0402303,RM100000001JHCH,

PROCEDURE

1.CHECK DTC (AIRBAG SYSTEM)

Turn the ignition switch off.

Connect the GTS to the DLC3.

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

Turn the GTS on.

Check the DTC of "AIRBAG SYSTEM".

for GTMC Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for GTMC Made)>DTC CHECK / CLEAR202405,999999,_58,_083100,_0694959,RM100000002LV1B,

for SFTM Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for SFTM Made)>DTC CHECK / CLEAR202405,202409,_58,_083100,_0694957,RM100000002LV48,202409,999999,_58,_083100,_0694957,RM100000002NSO1,

Result:

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

2.CHECK DTC

GO TO AIRBAG SYSTEM

for GTMC Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for GTMC Made)>DIAGNOSTIC TROUBLE CODE CHART202405,999999,_58,_083100,_0694959,RM100000002LV1G,

for SFTM Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for SFTM Made)>DIAGNOSTIC TROUBLE CODE CHART202405,202409,_58,_083100,_0694957,RM100000002LV4C,202409,999999,_58,_083100,_0694957,RM100000002NSO5,

2.CHECK DTC

Turn the ignition switch off.

Connect the GTS to the DLC3.

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

Turn the GTS on.

Check for DTCs and check that no DTCs are output.

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS SYSTEM>DTC CHECK / CLEAR201910,999999,_56,_083087,_0402655,RM100000001JJZZ,

Body Electrical > Telematics > Trouble Codes: 50001 459

OK:: No DTCs are output.

Result:

Proceed to
OK
NG

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING201910,999999,_V1,_083040,_0402301,RM100000001JHCA,

3.CHECK TELEMATICS TRANSCEIVER (GSW SIGNAL)

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 1.563,0.26 2,0.51 0.438,0.25 10 false G131 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>REMOVAL202304,999999,_56,_083087,_0400686,RM1000000029SYO,

Check the input waveform.

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 ECU assembly connectors are connected.)

Reference Waveform:

Item	Condition
Tester connection	G131-13 (GSW) - Body ground
Tool setting	5.0 V/DIV., 20 ms./DIV.
Vehicle condition	Ignition switch ON

OK:: The waveform is similar to that shown in the illustration.

Result:

Proceed to
OK
NG

4.REPLACE TELEMATICS TRANSCEIVER

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

4.REPLACE TELEMATICS TRANSCEIVER

Replace the telematics transceiver with a new one.

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS TRANSCEIVER>REMOVAL202304,999999,_56,_083087,_0400686,RM1000000029SYO,

Result:

Proceed to
NEXT

PERFORM REGISTRATION

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS SYSTEM>REGISTRATION202304,999999,_56,_083087,_0402655,RM1000000029YMH,

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

Disconnect the G131 telematics transceiver connector.

Disconnect the G70 airbag ECU assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
G131-13 (GSW) - G70-23 (GSW3)	Always	Below 1 Ω
G131-13 (GSW) - Body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

REPLACE AIRBAG ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL202405,202409,_58,_083100,_0400500,RM100000002LW7W,202409,999999,_58,_083100,_0400500,RM100000002NG0L,

REPAIR OR REPLACE HARNESS OR CONNECTOR