Code Definition

B1000 — Airbag Centre sensor signal error

System: Body  |  Type: Manufacturer-Specific  |  Make: Toyota

About B1000

B1000 is a manufacturer-specific body diagnostic trouble code recorded for Toyota vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1000 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1000 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

On Toyota vehicles the Centre Airbag Sensor Assembly (the SRS ECU typically mounted under the centre console on the transmission tunnel) is the master module of the Supplemental Restraint System. It contains the primary acceleration sensors, deployment logic, and crash memory, and communicates with satellite impact sensors, seatbelt pretensioners, and airbag squibs. DTC B1000 is stored when the SRS ECU detects an internal signal-path fault within the centre sensor itself — either an accelerometer out-of-range condition, a failed internal self-test at key-on, or corrupted internal data. When ...

Join TaT to view the complete code information and diagnostic details.

Quick Facts