| Last Modified: 06-05-2026 | 6.11:8.1.0 | Doc ID: RM10000000289V9 |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - 03/2026] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B00B512; Driver Seat Track Position Restraints Sensor Circuit Short to Battery; 2023 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [11/2022 - 03/2026] | ||
|
DTC |
B00B512 |
Driver Seat Track Position Restraints Sensor Circuit Short to Battery |
DESCRIPTION
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
DTC Output from |
Priority |
Test Mode / Check Mode |
|---|---|---|---|---|---|---|---|
|
B00B512 |
Driver Seat Track Position Restraints Sensor Circuit Short to Battery |
for TMC Made
for TMMMS Made
|
for TMC Made
for TMMMS Made
|
Comes on |
SRS Airbag |
A |
Does not apply to test/check mode |
- *1: The seat position sensor is built into the front seat adjuster assembly LH.
- *2: The seat position sensor is built into the separate type front seat cushion spring assembly LH.
WIRING DIAGRAM
for TMC Made Manual Seat:
for TMC Made Power Seat:
for TMMMS Made Manual Seat:
for TMMMS Made Power Seat:
CAUTION / NOTICE / HINT
NOTICE:
-
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Click here
![2023 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [09/2022 - ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY](/t3Portal/stylegraphics/info.gif)
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Click here
-
After replacing the airbag sensor assembly, refer to work procedure.
Click here
PROCEDURE
|
1. |
CHECK VEHICLE CONDITION |
(a) Choose the model to be inspected.
Result
|
Result |
Proceed to |
|---|---|
|
for TMC Made Manual Seat |
A |
|
for TMC Made Power Seat |
B |
|
for TMMMS Made Manual Seat |
C |
|
for TMMMS Made Power Seat |
D |
| B |
|
| C |
|
| D |
|
|
|
2. |
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 airbag sensor assembly and seat position sensor (front seat adjuster assembly LH).
OK:
The connectors are properly connected.
Post-procedure1
(d) None
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
3. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the airbag sensor assembly connector. |
|
(b) Disconnect the seat position sensor connector.
Procedure1
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(d) None
| NG |
|
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH OR REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK SEAT POSITION SENSOR CIRCUIT (CHECK FOR SHORT TO +B IN THE CIRCUIT) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage
|
|
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| NG |
|
|
|
5. |
CLEAR DTC |
Pre-procedure1
|
(a) Connect the airbag sensor assembly connector. |
|
(b) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(d) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(e) Turn the ignition switch off.
|
|
6. |
CHECK DTC |
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
|
Result |
Proceed to |
|---|---|
|
B00B512 is output |
A |
|
B00B512 is not output |
B |
HINT:
Codes other than DTC B00B512 may be output at this time, but they are not related to this check.
Post-procedure1
(c) None
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
Click here
|
| B |
|
REPLACE SEAT POSITION SENSOR (FRONT SEAT ADJUSTER ASSEMBLY LH)
Click here
|
|
7. |
CHECK CONNECTION OF CONNECTORS |
(a) Check that the connectors are properly connected to the front seat inner belt assembly LH.
OK:
The connectors are properly connected.
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
8. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the front seat inner belt assembly LH connector. |
|
Procedure1
(b) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(c) None
| NG |
|
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH OR REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
9. |
CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY LH - AIRBAG SENSOR ASSEMBLY) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage
|
|
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
10. |
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 airbag sensor assembly and seat position sensor (front seat adjuster assembly LH).
OK:
The connectors are properly connected.
Post-procedure1
(d) None
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
11. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the airbag sensor assembly connector. |
|
(b) Disconnect the seat position sensor connector.
Procedure1
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(d) None
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
12. |
CHECK SEAT POSITION SENSOR CIRCUIT (CHECK FOR SHORT TO +B IN THE CIRCUIT) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
|
*1 |
Seat Position Sensor (Front Seat Adjuster Assembly LH) |
*2 |
Front Seat Inner Belt Assembly LH |
|
*3 |
Airbag Sensor Assembly |
*4 |
Wire Harness |
|
*a |
Front view of wire harness connector (to Seat Position Sensor (Front Seat Adjuster Assembly LH)) |
- |
- |
Standard Voltage
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
q10-1 (GND) - Body ground |
Ignition switch ON |
Below 1 V |
|
q10-2 (VS) - Body ground |
Ignition switch ON |
Below 1 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| NG |
|
|
|
13. |
CLEAR DTC |
Pre-procedure1
|
(a) Connect the airbag sensor assembly connector. |
|
(b) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(d) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(e) Turn the ignition switch off.
|
|
14. |
CHECK DTC |
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
|
Result |
Proceed to |
|---|---|
|
B00B512 is output |
A |
|
B00B512 is not output |
B |
HINT:
Codes other than DTC B00B512 may be output at this time, but they are not related to this check.
Post-procedure1
(c) None
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
Click here
|
| B |
|
REPLACE SEAT POSITION SENSOR (FRONT SEAT ADJUSTER ASSEMBLY LH) |
|
15. |
CHECK CONNECTION OF CONNECTORS |
(a) Check that the connectors are properly connected to the front seat inner belt assembly LH.
OK:
The connectors are properly connected.
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
16. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the front seat inner belt assembly LH connector. |
|
Procedure1
(b) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(c) None
| NG |
|
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH OR REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
17. |
CHECK HARNESS AND CONNECTOR (SEAT POSITION SENSOR - FRONT SEAT INNER BELT ASSEMBLY LH) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
|
*1 |
Seat Position Sensor (Front Seat Adjuster Assembly LH) |
*2 |
Front Seat Inner Belt Assembly LH |
|
*3 |
Airbag Sensor Assembly |
*4 |
Wire Harness |
|
*a |
Front view of wire harness connector (to Seat Position Sensor (Front Seat Adjuster Assembly LH)) |
- |
- |
Standard Voltage
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
q10-2 (VS) - Body ground |
Ignition switch ON |
Below 1 V |
|
q10-1 (GND) - Body ground |
Ignition switch ON |
Below 1 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
18. |
CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY LH - AIRBAG SENSOR ASSEMBLY) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
|
*1 |
Seat Position Sensor (Front Seat Adjuster Assembly LH) |
*2 |
Front Seat Inner Belt Assembly LH |
|
*3 |
Airbag Sensor Assembly |
*4 |
Wire Harness |
|
*a |
Front view of wire harness connector (to Front Seat Inner Belt Assembly LH) |
- |
- |
Standard Voltage
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O23-4 (LSP+) - Body ground |
Ignition switch ON |
Below 1 V |
|
O23-3 (LSP-) - Body ground |
Ignition switch ON |
Below 1 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
19. |
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 airbag sensor assembly and seat position sensor (separate type front seat cushion spring assembly LH).
OK:
The connectors are properly connected.
Post-procedure1
(d) None
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
20. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the airbag sensor assembly connector. |
|
(b) Disconnect the seat position sensor connector.
Procedure1
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(d) None
| NG |
|
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH OR REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
21. |
CHECK SEAT POSITION SENSOR CIRCUIT (CHECK FOR SHORT TO +B IN THE CIRCUIT) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage
|
|
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| NG |
|
|
|
22. |
CLEAR DTC |
Pre-procedure1
|
(a) Connect the airbag sensor assembly connector. |
|
(b) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(d) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(e) Turn the ignition switch off.
|
|
23. |
CHECK DTC |
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
|
Result |
Proceed to |
|---|---|
|
B00B512 is output |
A |
|
B00B512 is not output |
B |
HINT:
Codes other than DTC B00B512 may be output at this time, but they are not related to this check.
Post-procedure1
(c) None
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
Click here
|
| B |
|
REPLACE SEAT POSITION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH)
Click here
|
|
24. |
CHECK CONNECTION OF CONNECTORS |
(a) Check that the connectors are properly connected to the front seat inner belt assembly LH.
OK:
The connectors are properly connected.
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
25. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the front seat inner belt assembly LH connector. |
|
Procedure1
(b) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(c) None
| NG |
|
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH OR REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
26. |
CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY LH - AIRBAG SENSOR ASSEMBLY) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
|
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage
|
|
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
27. |
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 airbag sensor assembly and seat position sensor (separate type front seat cushion spring assembly LH).
OK:
The connectors are properly connected.
Post-procedure1
(d) None
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
28. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the airbag sensor assembly connector. |
|
(b) Disconnect the seat position sensor connector.
Procedure1
(c) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(d) None
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
29. |
CHECK SEAT POSITION SENSOR CIRCUIT (CHECK FOR SHORT TO +B IN THE CIRCUIT) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
|
*1 |
Seat Position Sensor (Separate Type Front Seat Cushion Spring Assembly LH) |
*2 |
Front Seat Inner Belt Assembly LH |
|
*3 |
Airbag Sensor Assembly |
*4 |
Wire Harness |
|
*a |
Front view of wire harness connector (to Seat Position Sensor (Separate Type Front Seat Cushion Spring Assembly LH)) |
- |
- |
Standard Voltage
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
q10-1 (GND) - Body ground |
Ignition switch ON |
Below 1 V |
|
q10-2 (VS) - Body ground |
Ignition switch ON |
Below 1 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| NG |
|
|
|
30. |
CLEAR DTC |
Pre-procedure1
|
(a) Connect the airbag sensor assembly connector. |
|
(b) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(c) Turn the ignition switch to ON, and wait for at least 60 seconds.
Procedure1
(d) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
Post-procedure1
(e) Turn the ignition switch off.
|
|
31. |
CHECK DTC |
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
|
Result |
Proceed to |
|---|---|
|
B00B512 is output |
A |
|
B00B512 is not output |
B |
HINT:
Codes other than DTC B00B512 may be output at this time, but they are not related to this check.
Post-procedure1
(c) None
| A |
|
REPLACE AIRBAG SENSOR ASSEMBLY
Click here
|
| B |
|
REPLACE SEAT POSITION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY LH) |
|
32. |
CHECK CONNECTION OF CONNECTORS |
(a) Check that the connectors are properly connected to the front seat inner belt assembly LH.
OK:
The connectors are properly connected.
| NG |
|
CONNECT CONNECTORS PROPERLY |
|
|
33. |
CHECK CONNECTORS |
Pre-procedure1
|
(a) Disconnect the front seat inner belt assembly LH connector. |
|
Procedure1
(b) Check that the terminals of the connectors are not deformed or damaged.
OK:
The terminals are not deformed or damaged.
Post-procedure1
(c) None
| NG |
|
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH OR REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
34. |
CHECK HARNESS AND CONNECTOR (SEAT POSITION SENSOR - FRONT SEAT INNER BELT ASSEMBLY LH) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
|
*1 |
Seat Position Sensor (Separate Type Front Seat Cushion Spring Assembly LH) |
*2 |
Front Seat Inner Belt Assembly LH |
|
*3 |
Airbag Sensor Assembly |
*4 |
Wire Harness |
|
*a |
Front view of wire harness connector (to Seat Position Sensor (Separate Type Front Seat Cushion Spring Assembly LH)) |
- |
- |
Standard Voltage
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
q10-2 (VS) - Body ground |
Ignition switch ON |
Below 1 V |
|
q10-1 (GND) - Body ground |
Ignition switch ON |
Below 1 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
35. |
CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY LH - AIRBAG SENSOR ASSEMBLY) |
Pre-procedure1
(a) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
|
*1 |
Seat Position Sensor (Separate Type Front Seat Cushion Spring Assembly LH) |
*2 |
Front Seat Inner Belt Assembly LH |
|
*3 |
Airbag Sensor Assembly |
*4 |
Wire Harness |
|
*a |
Front view of wire harness connector (to Front Seat Inner Belt Assembly LH) |
- |
- |
Standard Voltage
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O23-4 (LSP+) - Body ground |
Ignition switch ON |
Below 1 V |
|
O23-3 (LSP-) - Body ground |
Ignition switch ON |
Below 1 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
|
|
|
|