Code Definition

B1926 — Airbag Passenger Pressure Switch Circuit Failure

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

About B1926

B1926 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1926 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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.

B1926 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

The Restraint Control Module (RCM) monitors the passenger airbag pressure switch circuit to determine whether an occupant is present in the front passenger seat. This information is used to decide whether the passenger airbag should arm or remain disabled in the event of a crash. DTC B1926 is set when the RCM detects an open, short to ground, short to voltage, or out of range condition on the pressure switch circuit, which is typically a pressure sensor or weight sensor mounted in or under the passenger seat cushion. When this code is active the SRS warning lamp will illuminate on the dash, th...

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