| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001K4ZK |
| Model Year Start: 2020 | Model: RAV4 | Prod Date Range: [10/2019 - 10/2022] |
| Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B15C464; Airbag Signal Signal Plausibility Failure; 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022] | ||
|
DTC |
B15C464 |
Airbag Signal Signal Plausibility Failure |
DESCRIPTION
If the DCM (telephone transceiver assembly) detects an error in communication between the DCM (telephone transceiver assembly) and the airbag ECU assembly as a result of the DCM (telephone transceiver assembly) self check, this DTC will be set.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B15C464 |
Airbag Signal Signal Plausibility Failure |
DCM (telephone transceiver assembly) detects an error in signals from airbag ECU assembly when ignition switch is ON. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
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 here
![2019 - 2020 MY RAV4 RAV4 HV [02/2019 - 08/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (w/ Occupant Classification System): PRECAUTION](/t3Portal/stylegraphics/info.gif)
-
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
PROCEDURE
|
1. |
CHECK DTC (AIRBAG SYSTEM) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and wait for 10 seconds or more.
(d) Turn the Techstream on.
(e) Clear the DTCs.
Click here
(f) Check for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
| NG |
|
GO TO AIRBAG SYSTEM
|
|
|
2. |
CHECK DTC |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON and wait for 10 seconds or more.
(d) Turn the Techstream on.
(e) Clear the DTCs.
Click here
Body Electrical > Telematics > Clear DTCs
(f) Check for DTCs and check that no DTCs are output.
Click here
Body Electrical > Telematics > Trouble Codes
OK:
No DTCs are output.
| OK |
|
|
|
3. |
CHECK DCM (TELEPHONE TRANSCEIVER ASSEMBLY) (GSW SIGNAL) |
|
(a) Remove the DCM (telephone transceiver assembly) but do not disconnect the connectors. Click here
|
|
(b) Check the input waveform.
(1) 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 DCM (telephone transceiver assembly) 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.
| NG |
|
|
|
4. |
REPLACE DCM (TELEPHONE TRANSCEIVER ASSEMBLY) |
(a) Replace the DCM (telephone transceiver assembly) with a new one.
Click here
NOTICE:
- The ignition switch must be off.
- Do not exchange the DCM (telephone transceiver assembly) with one from another vehicle.
| NEXT |
|
|
5. |
CHECK HARNESS AND CONNECTOR (DCM [TELEPHONE TRANSCEIVER ASSEMBLY] - AIRBAG ECU ASSEMBLY) |
(a) Disconnect the G131 DCM (telephone transceiver assembly) connector.
(b) Disconnect the G70 airbag ECU assembly connector.
(c) 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 |
| OK |
|
REPLACE AIRBAG ECU ASSEMBLY
|
| NG |
|
REPLACE HARNESS OR CONNECTOR |
|
|