DESCRIPTION
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Warning Indicate | Test Mode / Check Mode |
---|---|---|---|---|---|
B00381A | Second Row Right Side Airbag Deployment Control Circuit Resistance Below Threshold |
One of the following conditions is met:
|
| Comes on |
Applies to check mode |
Vehicle Condition | ||||
---|---|---|---|---|
Pattern 1 | Pattern 2 |
Pattern 3 | ||
Diagnosis Condition | During the primary check |
○ | ○ |
○ |
Malfunction Status | The airbag ECU assembly detects a line short in the rear side squib RH circuit |
○ | - |
- |
Rear side squib RH (rear seat airbag assembly RH) malfunction |
- | ○ |
- | |
Airbag ECU assembly malfunction |
- | - |
○ | |
Detection Time | 2 seconds |
2 seconds | 2 seconds | |
Number of Trips | 1 trip |
1 trip | 1 trip |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.
Click here
HINT:
Click here
Click here
Click here
PROCEDURE
1. | CHECK CURRENT DTC |
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes Result |
Proceed to |
---|---|
Current B00381A is output |
A |
Current B00381A is not output |
B |
B | USE SIMULATION METHOD TO CHECK Click here HINT:
|
|
2. |
CHECK CONNECTION OF CONNECTORS |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 60 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(c) Check that the connectors are properly connected to the rear seat airbag assembly RH and airbag ECU assembly.
OK:
The connectors are properly connected.
NG | CONNECT CONNECTORS PROPERLY |
|
3. |
CHECK CONNECTORS |
(a) Disconnect the connectors from the rear seat airbag assembly RH and airbag ECU assembly.
(b) Check that the terminals of the connectors are not deformed or damaged. OK: The terminals of the connectors are not deformed or damaged. |
|
(c) Check that the short springs of the activation prevention mechanism of the wire harness connector are not deformed or damaged.
OK:
The short springs are not deformed or damaged.
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CLEAR DTC |
(a) Connect the connector to the airbag ECU assembly. |
|
(b) Connect the red wire side of SST (resistance 2.1 Ω) to connector C.
CAUTION:
Never connect a tester to the rear seat airbag assembly RH for measurement, as this may lead to a serious injury due to airbag deployment.
NOTICE:
SST: 09843-18061
(c) Connect the cable to the negative (-) battery terminal.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs(f) Turn the ignition switch off.
|
5. |
CHECK REAR SEAT AIRBAG ASSEMBLY RH |
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes Result |
Proceed to |
---|---|
B00381A is not output |
A |
B00381A is output |
B |
HINT:
Codes other than DTC B00381A may be output at this time, but they are not related to this check.
(c) Turn the ignition switch off.
(d) Disconnect the cable from the negative (-) battery terminal.
CAUTION:
Wait at least 60 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(e) Disconnect SST from connector C.
A | REPLACE REAR SEAT AIRBAG ASSEMBLY RH |
|
6. |
CHECK HARNESS AND CONNECTOR |
(a) Disconnect the connector from the airbag ECU assembly.
(b) Check for a short in the circuit. (1) Release the activation prevention mechanism built into connector B. HINT: Click here (2) Measure the resistance according to the value(s) in the table below. Standard Resistance:
Result:
(3) Restore the released activation prevention mechanism of connector B to the original condition. |
|
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. |
CLEAR DTC |
(a) Connect the connectors to the rear seat airbag assembly RH and airbag ECU assembly. |
|
(b) Connect the cable to the negative (-) battery terminal.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
(d) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs(e) Turn the ignition switch off.
|
8. |
CHECK DTC |
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes Result |
Proceed to |
---|---|
B00381A is not output |
A |
B00381A is output |
B |
HINT:
Codes other than DTC B00381A may be output at this time, but they are not related to this check.
A | USE SIMULATION METHOD TO CHECK Click here HINT:
|
B | REPLACE AIRBAG ECU ASSEMBLY |