Toyota Corolla Cross: Lost Communication with Airbag System Control Module Signal Plausibility Failure (P310764)
DESCRIPTION
Refer to the description for DTC P310711.
Click here .gif)
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
P310764 | Lost Communication with Airbag System Control Module Signal Plausibility Failure |
Abnormal communication signal: Communication from the airbag ECU assembly stopped and signal plausibility failure has been detected for a certain period. (1 trip detection logic) |
| Does not come on |
Master Warning: Comes on |
SAE Code: P3107 |
CONFIRMATION DRIVING PATTERN
HINT:
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and turn the GTS on.
- With ignition switch to ON and wait for 2 minutes or more.
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
- Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.
WIRING DIAGRAM
Refer to the wiring diagram for DTC P310711.
Click here
PROCEDURE
|
1. | CHECK DTC OUTPUT (SRS AIRBAG) |
(a) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes| Result |
Proceed to |
|---|---|
| DTCs are not output |
A |
| DTCs are output |
B |
| B | .gif) | GO TO DTC CHART (AIRBAG SYSTEM) |
|
.gif)
|
2. | CLEAR DTC |
Click here
|
|
3. | CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes| Result |
Proceed to |
|---|---|
| P310764 is not output |
A |
| P310764 is output again |
B |
| B | | GO TO STEP 5 |
|
|
4. | CHECK FOR INTERMITTENT PROBLEMS |
Click here
| OK | | REPLACE AIRBAG ECU ASSEMBLY |
| NG | | REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
|
5. | CHECK AIRBAG ECU ASSEMBLY (CHECK WAVEFORM) |
Click here
| Result |
Proceed to |
|---|---|
| The waveform appears as shown in the illustration. |
A |
| The waveform differs from the one shown in the illustration. |
B |
| A | | REPLACE HYBRID VEHICLE CONTROL ECU |
|
|
6. | CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) |
Click here
| NG | | CONNECT SECURELY |
|
|
7. | CHECK CONNECTOR CONNECTION CONDITION (AIRBAG ECU ASSEMBLY CONNECTOR) |
Click here
| NG | | CONNECT SECURELY |
|
|
8. | CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - AIRBAG ECU ASSEMBLY) |
Click here
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
9. | CHECK HARNESS AND CONNECTOR (AIRBAG ECU ASSEMBLY - BODY GROUND) |
Click here
| OK | | REPLACE AIRBAG ECU ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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