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Are you getting a "B1499 - Control Unit Collision Decision Active" code indicating that a collision was detected? This code means that your vehicle was in an accident and now has crash data stored in the ACM airbag control.
This code cannot be cleared or erased with any diagnostic scan tool. It will give you the error cannot execute the routine.
Warning: Remove restraint system diagnostic tools from the vehicle prior to road testing. If tools are not removed, the supplemental restraint system (SRS) device may not deploy in a crash. Failure to follow this instruction may result in serious personal injury or death in a crash and possibly violate vehicle safety standards.
Note: After diagnosing or repairing a Supplemental Restraint System (SRS), the restraint system diagnostic tools (if required) must be removed before operating the vehicle over the road.
Note: Deployable devices (such as airbag modules, pretensioners) may deploy alone or in various combinations depending on the impact event.
Note: Always refer to the appropriate workshop manual procedures prior to carrying out vehicle repairs affecting the SRS and safety belt system.
Note: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- For rail-type OCS system, inspect the passenger side floor pan for damage and repair as necessary. Install new OCS system rails. Do not install a new OCSM unless DTC B1499 cannot be cleared.
- For a weight sensor bolt-type OCS system, inspect the passenger side floor pan for damage and repair as necessary. Install a new seat track with OCS system weight sensor bolts. DTC must be cleared from the OCSM before carrying out Occupant Classification Sensor (OCS) System Reset. Do not install a new OCSM unless DTC B1499 cannot be cleared.
- For bladder-type OCS system, inspect for damage and repair as necessary. If the installation of an OCS system component is required, an OCS system service kit must be installed.
- Steering column (deployable column if equipped)
- Instrument panel knee bolsters and mounting points
- Instrument panel braces and brackets
- Instrument panel and mounting points
- Seats and seat mounting points
- Safety belts, safety belt buckles, and safety belt retractors.
- SRS wiring, wiring harnesses and connectors
