Code Definition

B1997 — Passenger Side, Side mount Airbag Circuit Short to Ground

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

About B1997

B1997 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 B1997 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) in the monitored circuit.

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.

B1997 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 Supplemental Restraint System (SRS) control module continuously monitors the integrity of all airbag deployment circuits, including the passenger side mount (side impact) airbag circuit. Code B1997 sets when the SRS module detects that the passenger side mount airbag circuit is shorted to ground, meaning the circuit is being pulled to chassis ground instead of holding the expected reference potential. This fault is typically caused by chafed wiring contacting a grounded body panel, water intrusion creating a low resistance path to ground, a damaged airbag squib connector, or an internal sh...

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