B2004 — Right Passenger seat assembly forward switch circuit open

Manufacturer reference family

GM: B2004

Right Passenger seat assembly forward switch circuit open

Reference namespace: gm
Source revision: legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Manufacturer reference family

Subaru: B2004

SSP system communication bus battery short-circuit

Reference namespace: subaru
Source revision: legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Subaru.

5 profiles assigned this reference family

2010 - n.d. (CVT/AT + CAN)Subaru · 2010–onward
2022 - n.d. (CVT/AT + CAN)Subaru · 2022–onward
BRZ (gen.1 2012-2021)Subaru · 2012–2021
SSM2 over CAN (2008-2010)Subaru · 2008–2010
WWH-OBD (CAN 11 bit) (2026-n.d.)Subaru · 2026–onward

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording

Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method