Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM10000000289U6 |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [11/2022 -
] |
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B00731A; Second Row Left Seat Belt Pretensioner Deployment Control Circuit Resistance Below Threshold; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ] |
DTC
|
B00731A
|
Second Row Left Seat Belt Pretensioner Deployment Control Circuit Resistance Below Threshold
|
DESCRIPTION
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Warning Indicate
|
DTC Output from
|
Priority
|
Test Mode / Check Mode
|
B00731A
|
Second Row Left Seat Belt Pretensioner Deployment Control Circuit Resistance Below Threshold
|
-
The airbag sensor assembly detects a line short in the rear pretensioner squib LH circuit for 2 seconds during the primary check.
-
Rear 3 point type seat outer belt assembly LH malfunction
-
Airbag sensor assembly malfunction
|
-
Harness or connector
-
Rear 3 point type seat outer belt assembly LH
-
Airbag sensor assembly
|
Comes on
|
SRS Airbag
|
A
|
Applies to check mode
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
-
To perform the simulation method, enter check mode (signal check) with the GTS.
Click here
-
Perform the simulation method while checking the Data List.
Click here
PROCEDURE
Pre-procedure1
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(b) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(c) Turn the ignition switch off.
NEXT
|
|
|
Pre-procedure1
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
|
Proceed to
|
B00731A is output
|
A
|
B00731A is not output
|
B
|
Post-procedure1
(c) None
A
|
|
|
3.
|
CHECK CONNECTION OF CONNECTORS
|
Pre-procedure1
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
Procedure1
(c) Check that the connectors are properly connected to the rear 3 point type seat outer belt assembly LH and airbag sensor assembly.
OK:
The connectors are properly connected.
Post-procedure1
(d) None
NG |
|
CONNECT CONNECTORS PROPERLY
|
OK
|
|
|
Pre-procedure1
(a) Disconnect the airbag sensor assembly connector.
|
|
*1
|
Rear 3 Point Type Seat Outer Belt Assembly LH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
|
|
(b) Disconnect the rear 3 point type seat outer belt assembly LH connector.
Procedure1
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
(d) Check that the connectors are not loose, deformed or damaged.
OK:
The connector locking button is not disengaged, and the claw of the lock is not deformed or damaged.
(e) 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.
Post-procedure1
(f) None
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
Pre-procedure1
(a) Connect the airbag sensor assembly connector.
|
|
*1
|
Rear 3 Point Type Seat Outer Belt Assembly LH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*4
|
SST
|
*a
|
Front view of wire harness connector
(to Rear 3 Point Type Seat Outer Belt Assembly LH)
|
|
|
(b) Connect SST (resistance: 2.1 Ω) to connector C.
CAUTION:
Never connect the tester to the rear 3 point type seat outer belt assembly LH for measurement, as this may lead to a serious injury due to pretensioner deployment.
NOTICE:
-
Do not forcibly insert SST into the terminals of the connector when connecting SST.
-
Insert SST straight into the terminals of the connector.
SST: 09843-18061
(c) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(e) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(f) Turn the ignition switch off.
NEXT
|
|
|
6.
|
CHECK REAR 3 POINT TYPE SEAT OUTER BELT ASSEMBLY LH
|
Pre-procedure1
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
|
Proceed to
|
B00731A is not output
|
A
|
B00731A is output
|
B
|
HINT:
Codes other than DTC B00731A may be output at this time, but they are not related to this check.
Post-procedure1
(c) Turn the ignition switch off.
(d) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
(e) Disconnect SST from connector C.
A |
|
REPLACE REAR 3 POINT TYPE SEAT OUTER BELT ASSEMBLY LH
for Sedan: Click here
for Hatchback: Click here
|
B
|
|
|
7.
|
CHECK HARNESS AND CONNECTOR
|
Pre-procedure1
(a) Disconnect the airbag sensor assembly connector.
*1
|
Rear 3 Point Type Seat Outer Belt Assembly LH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
*a
|
Front view of wire harness connector
(to Rear 3 Point Type Seat Outer Belt Assembly LH)
|
|
Release the activation prevention mechanism
|
(b) Release the activation prevention mechanism built into connector B.
HINT:
Click here
Procedure1
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
O216-1 (RL+) - O216-2 (RL-)
|
Always
|
1 MΩ or higher
|
Post-procedure1
(d) Restore the released activation prevention mechanism of connector B to its original condition.
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
Pre-procedure1
(a) Connect the airbag sensor assembly connector.
|
|
*1
|
Rear 3 Point Type Seat Outer Belt Assembly LH
|
*2
|
Airbag Sensor Assembly
|
*3
|
Wire Harness
|
|
|
(b) Connect the rear 3 point type seat outer belt assembly LH connector.
(c) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(e) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(f) Turn the ignition switch off.
NEXT
|
|
|
Pre-procedure1
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(b) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
|
Proceed to
|
B00731A is not output
|
A
|
B00731A is output
|
B
|
HINT:
Codes other than DTC B00731A may be output at this time, but they are not related to this check.
Post-procedure1
(c) None
|