If the telematics transceiver detects an error in communication between the telematics transceiver and the airbag sensor with ECU 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 with ECU assembly when engine switch to on (IG). | ·
Airbag system ·
Harness or connector ·
Airbag sensor with ECU assembly ·
Telematics transceiver |
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.
When replacing the telematics transceiver, make sure to replace it with a new one.
Before replacing the telematics transceiver, refer to Service Bulletin.
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.
except NR Series Engine: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (except NR Series Engine)>PRECAUTION202304,999999,_58,_080741,_0584471,RM1000000029GQF,
for NR Series Engine: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for NR Series Engine)>PRECAUTION202307,999999,_58,_080741,_0610731,RM100000002CGZV,
After the engine switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch to on (IG) and wait for 60 seconds.
Turn the GTS on.
Clear the DTCs. (for 10.25 Inch Display)
Clear the DTCs. (except 10.25 Inch Display)
Check for DTCs and check that no DTCs are output. (for 10.25 Inch Display)
Check for DTCs and check that no DTCs are output. (except 10.25 Inch Display)
No DTCs are output.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
A
B
except NR Series Engine: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (except NR Series Engine)>DIAGNOSTIC TROUBLE CODE CHART202304,999999,_58,_080741,_0584471,RM1000000029GNV,
for NR Series Engine: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for NR Series Engine)>PRECAUTION202307,999999,_58,_080741,_0610731,RM100000002CGZV,
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch to on (IG) and wait for 10 seconds or more.
Turn the GTS on.
Check for DTCs and check that no DTCs are output.
No DTCs are output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Component with harness connected
(Telematics Transceiver) |
Remove the telematics transceiver but do not disconnect the connectors.
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 sensor with ECU assembly connectors are connected.)
| Item | Condition |
|---|---|
| Tester connection | I72-13 (GSW) - Body ground |
| Tool setting | 5.0 V/DIV., 20 ms./DIV. |
| Vehicle condition | Engine switch on (IG) |
The waveform is similar to that shown in the illustration.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Replace the telematics transceiver with a new one.
| Proceed to |
|---|
| NEXT |
NEXT
Disconnect the I72 telematics transceiver connector.
for 10.25 Inch Display:
Disconnect the I205 airbag sensor with ECU assembly connector.
except 10.25 Inch Display:
Disconnect the I47 airbag sensor with ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I72-13 (GSW) - I205-23 (GSW3) | Always | Below 1 Ω |
| I72-13 (GSW) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I72-13 (GSW) - I47-23 (GSW3) | Always | Below 1 Ω |
| I72-13 (GSW) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG