| Last Modified: 06-05-2026 | 6.11:8.1.0 | Doc ID: RM0000003TPGAPY |
| Model Year Start: 2026 | Model: GR Corolla | Prod Date Range: [03/2026 - ] |
| Title: SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for TMC, TMUK Made): B00C028; Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure; 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [03/2026 - ] | ||
|
DTC |
B00C028 |
Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure |
DESCRIPTION
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B00C028 |
Passenger Seat Occupant Classification Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure |
Either of following conditions is met:
|
Front seat adjuster assembly RH (front occupant classification sensor LH) |
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 front seat adjuster assembly RH, refer to work procedure.
Click here
PROCEDURE
|
1. |
PERFORM ZERO POINT CALIBRATION |
(a) Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".
Click here
|
|
2. |
CHECK DTC |
(a) Turn the ignition switch to ON, and wait for at least 60 seconds.
(b) Clear the DTCs stored in memory.
Body Electrical > SRS Airbag > Clear DTCs
(c) Turn the ignition switch off.
(d) Turn the ignition switch to ON, and wait for at least 60 seconds.
(e) Check the DTCs.
Body Electrical > SRS Airbag > Trouble Codes
Result
|
Result |
Proceed to |
|---|---|
|
B00C028 is output |
A |
|
B00C028 is not output |
B |
| B |
|
END (NORMAL AFTER PERFORMING ZERO POINT CALIBRATION) |
|
|
3. |
REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH |
(a) Turn the ignition switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
(c) Replace the front seat adjuster assembly RH with a new one.
Click here
(d) Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.
|
|
4. |
PERFORM ZERO POINT CALIBRATION |
(a) Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".
Click here
|
|
|