U0453Invalid Data Received From Side Restraints Control Module - Left
- Generic OBD-II code · Network
- How the car detects it
- U0453 concerns a side restraints control module for the left side, used where side impact sensing or the firing of side and curtain airbags is handled by a separate unit next to the main restraints module. A receiver, usually the main restraints module, sets U0453 when the left unit's crash or status data are invalid; U0152 is lost contact, U0454 covers the right side. No manufacturer documents U0453 publicly. FMVSS 214 regulates side impact protection, and FMVSS 208 requires a readiness indicator, visible to the driver, that supervises deployable occupant protection, which is why an airbag warning lamp is the expected symptom; protection on the left side may be reduced until repair. For the main module (U0452), GM's tables use counter and protection checks without MIL.
- What you may notice
- Airbag warning lamp on
- Side or curtain airbag on the left possibly not available
- Likely causes
- LikelyLoose or corroded connector of the left side unit, for example under the seat or in the B-pillar
- PossibleSoftware or configuration of the left unit not matching the main restraints module
- RareInternal fault of the left side restraints unit, often after a side impact
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.